Add torch.compile for Mistral (#30642)

* first version

* fix sliding window

* fix style

* add sliding window cache

* fix style

* address comments

* fix test

* fix style

* move sliding window check inside cache init

* revert changes on irrelevant files & add comment on SlidingWindowCache

* address comments & fix style

fix style

* update causal mask

* [run-slow] mistral

* [run-slow] mistral

* [run-slow] mistral

* [run-slow] mistral

* [run-slow] mistral

* [run-slow] llama

* [run-slow] mistral

* [run-slow] mistral

* [run-slow] mistral

* revert CI from a10 to t4

* wrap up

docs/source/en/llm_optims.md

@@ -29,7 +29,7 @@ To optimize this, you can use a kv-cache to store the past keys and values inste
 The *static kv-cache* solves this issue by pre-allocating the kv-cache size to a maximum value which allows you to combine it with torch.compile for up to a 4x speed up.
 
 > [!WARNING]
-> Currently, only [Command R](./model_doc/cohere), [Gemma](./model_doc/gemma) and [Llama](./model_doc/llama2) models support static kv-cache and torch.compile.
+> Currently, only [Llama](./model_doc/llama2) and a few other models support static kv-cache and torch.compile. Check [this issue](https://github.com/huggingface/transformers/issues/28981) for a live model compatibility list.
 
 For this example, let's load the [Gemma](https://hf.co/google/gemma-2b) model.
 

src/transformers/cache_utils.py

@@ -448,3 +448,124 @@ class StaticCache(Cache):
             # In-place ops prevent breaking the static address
             self.key_cache[layer_idx].zero_()
             self.value_cache[layer_idx].zero_()
+
+
+class SlidingWindowCache(Cache):
+    """
+    Sliding Window Cache class to be used with `torch.compile` for models like Mistral that support sliding window attention.
+    Every time when we try to update the cache, we compute the `indices` based on `cache_position >= self.config.sliding_window_size - 1`,
+    if true(which means the cache can not hold all the old key value states and new states together because of the sliding window constraint),
+    we need to do a cycle shift based on `indices` to replace the oldest states by the new key value states passed in.
+
+    The `to_shift` is only true once we are above sliding_window_size. Thus with `sliding_window_size==64`:
+
+    indices = (slicing + to_shift[-1].int()-1) % self.config.sliding_window_size
+    tensor([ 1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
+        19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
+        37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+        55, 56, 57, 58, 59, 60, 61, 62, 63,  0])
+
+    We overwrite the cache using these, then we always write at cache_position (clamped to `sliding_window_size`)
+
+    Parameters:
+        config (`PretrainedConfig):
+            The configuration file defining the shape-related attributes required to initialize the static cache.
+        max_batch_size (`int`):
+            The maximum batch size with which the model will be used.
+        max_cache_len (`int`):
+            The maximum sequence length with which the model will be used.
+        device (`torch.device`):
+            The device on which the cache should be initialized. Should be the same as the layer.
+        dtype (*optional*, defaults to `torch.float32`):
+            The default `dtype` to use when initializing the layer.
+    """
+
+    def __init__(self, config: PretrainedConfig, max_batch_size: int, max_cache_len: int, device, dtype=None) -> None:
+        if not hasattr(config, "sliding_window") or config.sliding_window is None:
+            raise ValueError(
+                "Setting `cache_implementation` to 'sliding_window' requires the model config supporting "
+                "sliding window attention, please check if there is a `sliding_window` field in the model "
+                "config and it's not set to None."
+            )
+
+        super().__init__()
+        self.max_batch_size = max_batch_size
+        # take the minimum of max_cache_len and config.sliding_window so that we allocate less memory
+        # when we do short-sentence generation
+        self.max_cache_len = config.max_position_embeddings if max_cache_len is None else max_cache_len
+        self.model_sliding_window_size = config.sliding_window
+        self.sliding_window_size = min(self.max_cache_len, self.model_sliding_window_size)
+        # Some model define a custom `head_dim` != config.hidden_size // config.num_attention_heads
+        self.head_dim = (
+            config.head_dim if hasattr(config, "head_dim") else config.hidden_size // config.num_attention_heads
+        )
+
+        self.dtype = dtype if dtype is not None else torch.float32
+        self.num_key_value_heads = (
+            config.num_attention_heads if config.num_key_value_heads is None else config.num_key_value_heads
+        )
+
+        cache_shape = (
+            config.num_hidden_layers,
+            max_batch_size,
+            self.num_key_value_heads,
+            self.sliding_window_size,
+            self.head_dim,
+        )
+
+        self.key_cache = torch.zeros(cache_shape, dtype=self.dtype, device=device)
+        self.value_cache = torch.zeros(cache_shape, dtype=self.dtype, device=device)
+
+        torch._dynamo.mark_static_address(self.key_cache)
+        torch._dynamo.mark_static_address(self.value_cache)
+
+    def update(
+        self,
+        key_states: torch.Tensor,
+        value_states: torch.Tensor,
+        layer_idx: int,
+        cache_kwargs: Optional[Dict[str, Any]] = None,
+    ) -> Tuple[torch.Tensor]:
+        cache_position = cache_kwargs.get("cache_position")
+        k_out = self.key_cache[layer_idx]
+        v_out = self.value_cache[layer_idx]
+
+        # assume this only happens in prefill phase when prompt length > sliding_window_size
+        if cache_position.shape[0] > self.sliding_window_size:
+            k_out = key_states[:, :, -self.sliding_window_size :, :]
+            v_out = value_states[:, :, -self.sliding_window_size :, :]
+            self.key_cache[layer_idx] = k_out
+            self.value_cache[layer_idx] = v_out
+            # we should return the whole states instead of k_out, v_out to take the whole prompt
+            # into consideration when building kv cache instead of just throwing away tokens outside of the window
+            return key_states, value_states
+
+        slicing = torch.ones(self.sliding_window_size, dtype=torch.long, device=value_states.device).cumsum(0)
+        cache_position = cache_position.clamp(0, self.sliding_window_size - 1)
+        to_shift = cache_position >= self.sliding_window_size - 1
+        indices = (slicing + to_shift[-1].int() - 1) % self.sliding_window_size
+
+        k_out = k_out[:, :, indices]
+        v_out = v_out[:, :, indices]
+
+        k_out[:, :, cache_position] = key_states
+        v_out[:, :, cache_position] = value_states
+
+        self.key_cache[layer_idx] = k_out
+        self.value_cache[layer_idx] = v_out
+
+        return k_out, v_out
+
+    def get_seq_length(self, layer_idx: Optional[int] = 0) -> int:
+        # assume this will be called only in the first generation step
+        # `cache_postion` will be used in other cases
+        return 0
+
+    def get_max_length(self) -> Optional[int]:
+        # in theory there is no limit because the sliding window size is fixed
+        # no matter how long the sentence is
+        return None
+
+    def reset(self):
+        self.key_cache.zero_()
+        self.value_cache.zero_()

src/transformers/generation/utils.py

@@ -24,7 +24,7 @@ import torch
 import torch.distributed as dist
 from torch import nn
 
-from ..cache_utils import Cache, DynamicCache, StaticCache
+from ..cache_utils import Cache, DynamicCache, SlidingWindowCache, StaticCache
 from ..integrations.deepspeed import is_deepspeed_zero3_enabled
 from ..modeling_outputs import CausalLMOutputWithPast, Seq2SeqLMOutput
 from ..models.auto import (
@@ -96,9 +96,7 @@ logger = logging.get_logger(__name__)
 if is_accelerate_available():
     from accelerate.hooks import AlignDevicesHook, add_hook_to_module
 
-NEED_SETUP_CACHE_CLASSES_MAPPING = {
-    "static": StaticCache,
-}
+NEED_SETUP_CACHE_CLASSES_MAPPING = {"static": StaticCache, "sliding_window": SlidingWindowCache}
 
 
 @dataclass
@@ -1326,24 +1324,33 @@ class GenerationMixin:
         model_kwargs["cache_position"] = torch.arange(past_length, cur_len, device=input_ids.device)
         return model_kwargs
 
-    def _get_static_cache(self, max_batch_size: int, max_cache_len: int) -> StaticCache:
+    def _get_cache(self, cache_implementation: str, max_batch_size: int, max_cache_len: int) -> Cache:
         """
-        Sets a static cache for `generate`, that will persist across calls. A new cache will only be initialized a
+        Sets a cache for `generate`, that will persist across calls. A new cache will only be initialized a
         new `generate` call requires a larger cache.
 
-        Returns the resulting static cache object.
+        Returns the resulting cache object.
         """
-        needs_new_cache = (
-            not hasattr(self, "_static_cache")
-            or self._static_cache.max_batch_size < max_batch_size
-            or self._static_cache.max_cache_len < max_cache_len
+        cache_cls: Cache = NEED_SETUP_CACHE_CLASSES_MAPPING[cache_implementation]
+        need_new_cache = (
+            not hasattr(self, "_cache")
+            or (not isinstance(self._cache, cache_cls))
+            or self._cache.max_batch_size < max_batch_size
         )
-        if needs_new_cache:
+        if cache_implementation == "sliding_window":
+            need_new_cache = need_new_cache or (
+                self._cache.sliding_window_size < self._cache.model_sliding_window_size
+                and max_cache_len > self._cache.max_cache_len
+            )
+        elif cache_implementation == "static":
+            need_new_cache = need_new_cache or self._cache.max_cache_len < max_cache_len
+
+        if need_new_cache:
             if hasattr(self.config, "_pre_quantization_dtype"):
                 cache_dtype = self.config._pre_quantization_dtype
             else:
                 cache_dtype = self.dtype
-            self._static_cache = StaticCache(
+            self._cache = cache_cls(
                 config=self.config,
                 max_batch_size=max_batch_size,
                 max_cache_len=max_cache_len,
@@ -1351,8 +1358,8 @@ class GenerationMixin:
                 dtype=cache_dtype,
             )
         else:
-            self._static_cache.reset()  # reset the cache for a new generation
-        return self._static_cache
+            self._cache.reset()
+        return self._cache
 
     def _prepare_special_tokens(
         self,
@@ -1615,14 +1622,14 @@ class GenerationMixin:
                     "This model does not support the `cache_implementation` argument. Please check the following "
                     "issue: https://github.com/huggingface/transformers/issues/28981."
                 )
-            if generation_config.cache_implementation == "static":
-                if not self._supports_static_cache:
-                    raise ValueError(
-                        "This model does not support `cache_implementation='static'`. Please check the following "
-                        "issue: https://github.com/huggingface/transformers/issues/28981"
-                    )
-                model_kwargs["past_key_values"] = self._get_static_cache(batch_size, generation_config.max_length)
-
+            if generation_config.cache_implementation == "static" and not self._supports_static_cache:
+                raise ValueError(
+                    "This model does not support `cache_implementation='static'`. Please check the following "
+                    "issue: https://github.com/huggingface/transformers/issues/28981"
+                )
+            model_kwargs["past_key_values"] = self._get_cache(
+                generation_config.cache_implementation, batch_size, generation_config.max_length
+            )
         self._validate_generated_length(generation_config, input_ids_length, has_default_max_length)
 
         # 7. determine generation mode

src/transformers/models/deprecated/open_llama/modeling_open_llama.py

@@ -63,7 +63,7 @@ class OpenLlamaRMSNorm(nn.Module):
         return self.weight * hidden_states.to(input_dtype)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->OpenLlama
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding with Mixtral->OpenLlama
 class OpenLlamaRotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -154,7 +154,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 

src/transformers/models/falcon/modeling_falcon.py

@@ -81,7 +81,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 
@@ -123,7 +123,7 @@ def _get_unpad_data(attention_mask):
     )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Falcon
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding with Mixtral->Falcon
 class FalconRotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()

src/transformers/models/gemma/modeling_gemma.py

@@ -253,7 +253,6 @@ class GemmaAttention(nn.Module):
         output_attentions: bool = False,
         use_cache: bool = False,
         cache_position: Optional[torch.LongTensor] = None,
-        **kwargs,
     ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
         bsz, q_len, _ = hidden_states.size()
 
@@ -265,8 +264,8 @@ class GemmaAttention(nn.Module):
         key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
         value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
 
-        cos, sin = self.rotary_emb(value_states, position_ids, seq_len=None)
-        query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, None)
+        cos, sin = self.rotary_emb(value_states, position_ids)
+        query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin)
 
         if past_key_value is not None:
             # sin and cos are specific to RoPE models; cache_position needed for the static cache

src/transformers/models/gpt_neox/modeling_gpt_neox.py

@@ -522,7 +522,7 @@ def attention_mask_func(attention_scores, ltor_mask):
 
 
 class GPTNeoXRotaryEmbedding(nn.Module):
-    # Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding.__init__
+    # Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding.__init__
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
 
@@ -614,7 +614,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 

src/transformers/models/gpt_neox_japanese/modeling_gpt_neox_japanese.py

@@ -230,7 +230,7 @@ class GPTNeoXJapaneseAttention(nn.Module):
 
 # Copied from transformers.models.gpt_neox.modeling_gpt_neox.GPTNeoXRotaryEmbedding with GPTNeoXRotaryEmbedding->RotaryEmbedding
 class RotaryEmbedding(nn.Module):
-    # Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding.__init__
+    # Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding.__init__
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
 

src/transformers/models/idefics/modeling_idefics.py

@@ -478,7 +478,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 

src/transformers/models/llama/modeling_llama.py

@@ -303,7 +303,6 @@ class LlamaAttention(nn.Module):
         output_attentions: bool = False,
         use_cache: bool = False,
         cache_position: Optional[torch.LongTensor] = None,
-        **kwargs,
     ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
         bsz, q_len, _ = hidden_states.size()
 
@@ -402,7 +401,6 @@ class LlamaFlashAttention2(LlamaAttention):
         output_attentions: bool = False,
         use_cache: bool = False,
         cache_position: Optional[torch.LongTensor] = None,
-        **kwargs,
     ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
         if isinstance(past_key_value, StaticCache):
             raise ValueError(

src/transformers/models/mistral/modeling_mistral.py

@@ -17,7 +17,8 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-""" PyTorch Mistral model."""
+"""PyTorch Mistral model."""
+
 import inspect
 import math
 from typing import List, Optional, Tuple, Union
@@ -29,8 +30,8 @@ from torch import nn
 from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
 
 from ...activations import ACT2FN
-from ...cache_utils import Cache, DynamicCache
-from ...modeling_attn_mask_utils import _prepare_4d_causal_attention_mask, _prepare_4d_causal_attention_mask_for_sdpa
+from ...cache_utils import Cache, DynamicCache, SlidingWindowCache, StaticCache
+from ...modeling_attn_mask_utils import AttentionMaskConverter
 from ...modeling_outputs import (
     BaseModelOutputWithPast,
     CausalLMOutputWithPast,
@@ -92,8 +93,6 @@ class MistralRMSNorm(nn.Module):
         return self.weight * hidden_states.to(input_dtype)
 
 
-# copied from transformers.models.llama.modeling_llama.LlamaRotaryEmbedding with Llama->Mistral
-# TODO @Arthur no longer copied from LLama after static cache
 class MistralRotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -104,30 +103,22 @@ class MistralRotaryEmbedding(nn.Module):
         inv_freq = 1.0 / (self.base ** (torch.arange(0, self.dim, 2, dtype=torch.int64).float().to(device) / self.dim))
         self.register_buffer("inv_freq", inv_freq, persistent=False)
 
-        # Build here to make `torch.jit.trace` work.
-        self._set_cos_sin_cache(
-            seq_len=max_position_embeddings, device=self.inv_freq.device, dtype=torch.get_default_dtype()
-        )
-
-    def _set_cos_sin_cache(self, seq_len, device, dtype):
-        self.max_seq_len_cached = seq_len
-        t = torch.arange(self.max_seq_len_cached, device=device, dtype=torch.int64).type_as(self.inv_freq)
-
-        freqs = torch.outer(t, self.inv_freq)
-        # Different from paper, but it uses a different permutation in order to obtain the same calculation
-        emb = torch.cat((freqs, freqs), dim=-1)
-        self.register_buffer("cos_cached", emb.cos().to(dtype), persistent=False)
-        self.register_buffer("sin_cached", emb.sin().to(dtype), persistent=False)
-
-    def forward(self, x, seq_len=None):
+    @torch.no_grad()
+    # Copied from transformers.models.llama.modeling_llama.LlamaRotaryEmbedding.forward
+    def forward(self, x, position_ids):
         # x: [bs, num_attention_heads, seq_len, head_size]
-        if seq_len > self.max_seq_len_cached:
-            self._set_cos_sin_cache(seq_len=seq_len, device=x.device, dtype=x.dtype)
-
-        return (
-            self.cos_cached[:seq_len].to(dtype=x.dtype),
-            self.sin_cached[:seq_len].to(dtype=x.dtype),
-        )
+        inv_freq_expanded = self.inv_freq[None, :, None].float().expand(position_ids.shape[0], -1, 1)
+        position_ids_expanded = position_ids[:, None, :].float()
+        # Force float32 since bfloat16 loses precision on long contexts
+        # See https://github.com/huggingface/transformers/pull/29285
+        device_type = x.device.type
+        device_type = device_type if isinstance(device_type, str) and device_type != "mps" else "cpu"
+        with torch.autocast(device_type=device_type, enabled=False):
+            freqs = (inv_freq_expanded.float() @ position_ids_expanded.float()).transpose(1, 2)
+            emb = torch.cat((freqs, freqs), dim=-1)
+            cos = emb.cos()
+            sin = emb.sin()
+        return cos.to(dtype=x.dtype), sin.to(dtype=x.dtype)
 
 
 # Copied from transformers.models.llama.modeling_llama.rotate_half
@@ -138,9 +129,8 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# copied from transformers.models.llama.modeling_llama.apply_rotary_pos_emb
-# TODO @Arthur no longer copied from LLama after static cache
-def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
+# Copied from transformers.models.llama.modeling_llama.apply_rotary_pos_emb
+def apply_rotary_pos_emb(q, k, cos, sin, position_ids=None, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 
     Args:
@@ -148,9 +138,8 @@ def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
         k (`torch.Tensor`): The key tensor.
         cos (`torch.Tensor`): The cosine part of the rotary embedding.
         sin (`torch.Tensor`): The sine part of the rotary embedding.
-        position_ids (`torch.Tensor`):
-            The position indices of the tokens corresponding to the query and key tensors. For example, this can be
-            used to pass offsetted position ids when working with a KV-cache.
+        position_ids (`torch.Tensor`, *optional*):
+            Deprecated and unused.
         unsqueeze_dim (`int`, *optional*, defaults to 1):
             The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and
             sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note
@@ -161,8 +150,8 @@ def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     Returns:
         `tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding.
     """
-    cos = cos[position_ids].unsqueeze(unsqueeze_dim)
-    sin = sin[position_ids].unsqueeze(unsqueeze_dim)
+    cos = cos.unsqueeze(unsqueeze_dim)
+    sin = sin.unsqueeze(unsqueeze_dim)
     q_embed = (q * cos) + (rotate_half(q) * sin)
     k_embed = (k * cos) + (rotate_half(k) * sin)
     return q_embed, k_embed
@@ -213,6 +202,7 @@ class MistralAttention(nn.Module):
                 "when creating this class."
             )
 
+        self.attention_dropout = config.attention_dropout
         self.hidden_size = config.hidden_size
         self.num_heads = config.num_attention_heads
         self.head_dim = self.hidden_size // self.num_heads
@@ -221,7 +211,6 @@ class MistralAttention(nn.Module):
         self.max_position_embeddings = config.max_position_embeddings
         self.rope_theta = config.rope_theta
         self.is_causal = True
-        self.attention_dropout = config.attention_dropout
 
         if (self.head_dim * self.num_heads) != self.hidden_size:
             raise ValueError(
@@ -231,7 +220,7 @@ class MistralAttention(nn.Module):
         self.q_proj = nn.Linear(self.hidden_size, self.num_heads * self.head_dim, bias=False)
         self.k_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=False)
         self.v_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=False)
-        self.o_proj = nn.Linear(self.num_heads * self.head_dim, self.hidden_size, bias=False)
+        self.o_proj = nn.Linear(self.hidden_size, self.hidden_size, bias=False)
 
         self.rotary_emb = MistralRotaryEmbedding(
             self.head_dim,
@@ -239,9 +228,7 @@ class MistralAttention(nn.Module):
             base=self.rope_theta,
         )
 
-    def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int):
-        return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous()
-
+    # Copied from transformers.models.gemma.modeling_gemma.GemmaAttention.forward with Gemma->Mistral
     def forward(
         self,
         hidden_states: torch.Tensor,
@@ -250,6 +237,7 @@ class MistralAttention(nn.Module):
         past_key_value: Optional[Cache] = None,
         output_attentions: bool = False,
         use_cache: bool = False,
+        cache_position: Optional[torch.LongTensor] = None,
     ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
         bsz, q_len, _ = hidden_states.size()
 
@@ -261,41 +249,22 @@ class MistralAttention(nn.Module):
         key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
         value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
 
-        kv_seq_len = key_states.shape[-2]
-        if past_key_value is not None:
-            if self.layer_idx is None:
-                raise ValueError(
-                    f"The cache structure has changed since version v4.36. If you are using {self.__class__.__name__} "
-                    "for auto-regressive decoding with k/v caching, please make sure to initialize the attention class "
-                    "with a layer index."
-                )
-            kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
-        cos, sin = self.rotary_emb(value_states, seq_len=kv_seq_len)
-        query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
+        cos, sin = self.rotary_emb(value_states, position_ids)
+        query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin)
 
         if past_key_value is not None:
-            cache_kwargs = {"sin": sin, "cos": cos}  # Specific to RoPE models
+            # sin and cos are specific to RoPE models; cache_position needed for the static cache
+            cache_kwargs = {"sin": sin, "cos": cos, "cache_position": cache_position}
             key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
 
-        # repeat k/v heads if n_kv_heads < n_heads
         key_states = repeat_kv(key_states, self.num_key_value_groups)
         value_states = repeat_kv(value_states, self.num_key_value_groups)
 
         attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) / math.sqrt(self.head_dim)
 
-        if attn_weights.size() != (bsz, self.num_heads, q_len, kv_seq_len):
-            raise ValueError(
-                f"Attention weights should be of size {(bsz, self.num_heads, q_len, kv_seq_len)}, but is"
-                f" {attn_weights.size()}"
-            )
-
-        if attention_mask is not None:
-            if attention_mask.size() != (bsz, 1, q_len, kv_seq_len):
-                raise ValueError(
-                    f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}"
-                )
-
-            attn_weights = attn_weights + attention_mask
+        if attention_mask is not None:  # no matter the length, we just slice it
+            causal_mask = attention_mask[:, :, :, : key_states.shape[-2]]
+            attn_weights = attn_weights + causal_mask
 
         # upcast attention to fp32
         attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype)
@@ -309,8 +278,8 @@ class MistralAttention(nn.Module):
             )
 
         attn_output = attn_output.transpose(1, 2).contiguous()
-        attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
 
+        attn_output = attn_output.view(bsz, q_len, -1)
         attn_output = self.o_proj(attn_output)
 
         if not output_attentions:
@@ -343,7 +312,16 @@ class MistralFlashAttention2(MistralAttention):
         past_key_value: Optional[Cache] = None,
         output_attentions: bool = False,
         use_cache: bool = False,
+        cache_position: Optional[torch.LongTensor] = None,
     ):
+        if isinstance(past_key_value, StaticCache):
+            raise ValueError(
+                "`static` cache implementation is not compatible with `attn_implementation==flash_attention_2` "
+                "make sure to use `sdpa` in the mean time, and open an issue at https://github.com/huggingface/transformers"
+            )
+
+        output_attentions = False
+
         bsz, q_len, _ = hidden_states.size()
 
         query_states = self.q_proj(hidden_states)
@@ -356,19 +334,10 @@ class MistralFlashAttention2(MistralAttention):
 
         kv_seq_len = key_states.shape[-2]
         if past_key_value is not None:
-            if self.layer_idx is None:
-                raise ValueError(
-                    f"The cache structure has changed since version v4.36. If you are using {self.__class__.__name__} "
-                    "for auto-regressive decoding with k/v caching, please make sure to initialize the attention class "
-                    "with a layer index."
-                )
-            kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
+            kv_seq_len += cache_position[0]
 
-        # Because the input can be padded, the absolute sequence length depends on the max position id.
-        rotary_seq_len = max(kv_seq_len, position_ids[:, -1].max().item()) + 1
-        cos, sin = self.rotary_emb(value_states, seq_len=rotary_seq_len)
-
-        query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
+        cos, sin = self.rotary_emb(value_states, position_ids)
+        query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin)
 
         use_sliding_windows = (
             _flash_supports_window_size
@@ -605,8 +574,7 @@ class MistralFlashAttention2(MistralAttention):
         )
 
 
-# copied from transformers.models.llama.modeling_llama.LlamaSdpaAttention with Llama->Mistral
-# TODO @Arthur no longer copied from LLama after static cache
+# Copied from transformers.models.llama.modeling_llama.LlamaSdpaAttention with Llama->Mistral
 class MistralSdpaAttention(MistralAttention):
     """
     Mistral attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from
@@ -623,6 +591,7 @@ class MistralSdpaAttention(MistralAttention):
         past_key_value: Optional[Cache] = None,
         output_attentions: bool = False,
         use_cache: bool = False,
+        cache_position: Optional[torch.LongTensor] = None,
     ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
         if output_attentions:
             # TODO: Improve this warning with e.g. `model.config.attn_implementation = "manual"` once this is implemented.
@@ -637,6 +606,7 @@ class MistralSdpaAttention(MistralAttention):
                 past_key_value=past_key_value,
                 output_attentions=output_attentions,
                 use_cache=use_cache,
+                cache_position=cache_position,
             )
 
         bsz, q_len, _ = hidden_states.size()
@@ -649,43 +619,38 @@ class MistralSdpaAttention(MistralAttention):
         key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
         value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
 
-        kv_seq_len = key_states.shape[-2]
-        if past_key_value is not None:
-            kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
-        cos, sin = self.rotary_emb(value_states, seq_len=kv_seq_len)
+        cos, sin = self.rotary_emb(value_states, position_ids)
 
-        query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
+        query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin)
 
         if past_key_value is not None:
-            cache_kwargs = {"sin": sin, "cos": cos}  # Specific to RoPE models
+            # sin and cos are specific to RoPE models; cache_position needed for the static cache
+            cache_kwargs = {"sin": sin, "cos": cos, "cache_position": cache_position}
             key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
 
         key_states = repeat_kv(key_states, self.num_key_value_groups)
         value_states = repeat_kv(value_states, self.num_key_value_groups)
 
+        causal_mask = attention_mask
         if attention_mask is not None:
-            if attention_mask.size() != (bsz, 1, q_len, kv_seq_len):
-                raise ValueError(
-                    f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}"
-                )
+            causal_mask = causal_mask[:, :, :, : key_states.shape[-2]]
 
         # SDPA with memory-efficient backend is currently (torch==2.1.2) bugged with non-contiguous inputs with custom attn_mask,
         # Reference: https://github.com/pytorch/pytorch/issues/112577.
-        if query_states.device.type == "cuda" and attention_mask is not None:
+        if query_states.device.type == "cuda" and causal_mask is not None:
             query_states = query_states.contiguous()
             key_states = key_states.contiguous()
             value_states = value_states.contiguous()
 
         # We dispatch to SDPA's Flash Attention or Efficient kernels via this `is_causal` if statement instead of an inline conditional assignment
         # in SDPA to support both torch.compile's dynamic shapes and full graph options. An inline conditional prevents dynamic shapes from compiling.
-        # The q_len > 1 is necessary to match with AttentionMaskConverter.to_causal_4d that does not create a causal mask in case q_len == 1.
-        is_causal = True if self.is_causal and attention_mask is None and q_len > 1 else False
+        is_causal = True if causal_mask is None and q_len > 1 else False
 
         attn_output = torch.nn.functional.scaled_dot_product_attention(
             query_states,
             key_states,
             value_states,
-            attn_mask=attention_mask,
+            attn_mask=causal_mask,
             dropout_p=self.attention_dropout if self.training else 0.0,
             is_causal=is_causal,
         )
@@ -705,12 +670,13 @@ MISTRAL_ATTENTION_CLASSES = {
 }
 
 
+# Copied from transformers.models.llama.modeling_llama.LlamaDecoderLayer with Llama->Mistral, LLAMA->MISTRAL
 class MistralDecoderLayer(nn.Module):
     def __init__(self, config: MistralConfig, layer_idx: int):
         super().__init__()
         self.hidden_size = config.hidden_size
 
-        self.self_attn = MISTRAL_ATTENTION_CLASSES[config._attn_implementation](config, layer_idx)
+        self.self_attn = MISTRAL_ATTENTION_CLASSES[config._attn_implementation](config=config, layer_idx=layer_idx)
 
         self.mlp = MistralMLP(config)
         self.input_layernorm = MistralRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
@@ -721,15 +687,17 @@ class MistralDecoderLayer(nn.Module):
         hidden_states: torch.Tensor,
         attention_mask: Optional[torch.Tensor] = None,
         position_ids: Optional[torch.LongTensor] = None,
-        past_key_value: Optional[Tuple[torch.Tensor]] = None,
+        past_key_value: Optional[Cache] = None,
         output_attentions: Optional[bool] = False,
         use_cache: Optional[bool] = False,
+        cache_position: Optional[torch.LongTensor] = None,
     ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]:
         """
         Args:
             hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)`
-            attention_mask (`torch.FloatTensor`, *optional*): attention mask of size
-                `(batch, sequence_length)` where padding elements are indicated by 0.
+            attention_mask (`torch.FloatTensor`, *optional*):
+                attention mask of size `(batch_size, sequence_length)` if flash attention is used or `(batch_size, 1,
+                query_sequence_length, key_sequence_length)` if default attention is used.
             output_attentions (`bool`, *optional*):
                 Whether or not to return the attentions tensors of all attention layers. See `attentions` under
                 returned tensors for more detail.
@@ -751,6 +719,7 @@ class MistralDecoderLayer(nn.Module):
             past_key_value=past_key_value,
             output_attentions=output_attentions,
             use_cache=use_cache,
+            cache_position=cache_position,
         )
         hidden_states = residual + hidden_states
 
@@ -801,6 +770,7 @@ class MistralPreTrainedModel(PreTrainedModel):
     _supports_flash_attn_2 = True
     _supports_sdpa = True
     _supports_cache_class = True
+    _supports_static_cache = True
 
     def _init_weights(self, module):
         std = self.config.initializer_range
@@ -924,12 +894,13 @@ class MistralModel(MistralPreTrainedModel):
         input_ids: torch.LongTensor = None,
         attention_mask: Optional[torch.Tensor] = None,
         position_ids: Optional[torch.LongTensor] = None,
-        past_key_values: Optional[List[torch.FloatTensor]] = None,
+        past_key_values: Optional[Union[Cache, List[torch.FloatTensor]]] = None,
         inputs_embeds: Optional[torch.FloatTensor] = None,
         use_cache: Optional[bool] = None,
         output_attentions: Optional[bool] = None,
         output_hidden_states: Optional[bool] = None,
         return_dict: Optional[bool] = None,
+        cache_position: Optional[torch.LongTensor] = None,
     ) -> Union[Tuple, BaseModelOutputWithPast]:
         output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
         output_hidden_states = (
@@ -940,74 +911,38 @@ class MistralModel(MistralPreTrainedModel):
         return_dict = return_dict if return_dict is not None else self.config.use_return_dict
 
         # retrieve input_ids and inputs_embeds
-        if input_ids is not None and inputs_embeds is not None:
-            raise ValueError("You cannot specify both decoder_input_ids and decoder_inputs_embeds at the same time")
-        elif input_ids is not None:
-            batch_size, seq_length = input_ids.shape
-        elif inputs_embeds is not None:
-            batch_size, seq_length, _ = inputs_embeds.shape
-        else:
-            raise ValueError("You have to specify either decoder_input_ids or decoder_inputs_embeds")
-
-        if self.gradient_checkpointing and self.training:
-            if use_cache:
-                logger.warning_once(
-                    "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
-                )
-                use_cache = False
-
-        past_key_values_length = 0
-
-        if use_cache:
-            use_legacy_cache = not isinstance(past_key_values, Cache)
-            if use_legacy_cache:
-                past_key_values = DynamicCache.from_legacy_cache(past_key_values)
-            past_key_values_length = past_key_values.get_usable_length(seq_length)
-
-        if position_ids is None:
-            device = input_ids.device if input_ids is not None else inputs_embeds.device
-            position_ids = torch.arange(
-                past_key_values_length, seq_length + past_key_values_length, dtype=torch.long, device=device
+        if (input_ids is None) ^ (inputs_embeds is not None):
+            raise ValueError(
+                "You cannot specify both input_ids and inputs_embeds at the same time, and must specify either one"
             )
-            position_ids = position_ids.unsqueeze(0).view(-1, seq_length)
-        else:
-            position_ids = position_ids.view(-1, seq_length).long()
+
+        if self.gradient_checkpointing and self.training and use_cache:
+            logger.warning_once(
+                "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
+            )
+            use_cache = False
 
         if inputs_embeds is None:
             inputs_embeds = self.embed_tokens(input_ids)
 
-        if attention_mask is not None and self._attn_implementation == "flash_attention_2" and use_cache:
-            is_padding_right = attention_mask[:, -1].sum().item() != batch_size
-            if is_padding_right:
-                raise ValueError(
-                    "You are attempting to perform batched generation with padding_side='right'"
-                    " this may lead to unexpected behaviour for Flash Attention version of Mistral. Make sure to "
-                    " call `tokenizer.padding_side  = 'left'` before tokenizing the input. "
-                )
+        return_legacy_cache = False
+        if use_cache and not isinstance(past_key_values, Cache):
+            past_key_values = DynamicCache.from_legacy_cache(past_key_values)
+            return_legacy_cache = True
 
-        if self._attn_implementation == "flash_attention_2":
-            # 2d mask is passed through the layers
-            attention_mask = attention_mask if (attention_mask is not None and 0 in attention_mask) else None
-        elif self._attn_implementation == "sdpa" and not output_attentions:
-            # output_attentions=True can not be supported when using SDPA, and we fall back on
-            # the manual implementation that requires a 4D causal mask in all cases.
-            attention_mask = _prepare_4d_causal_attention_mask_for_sdpa(
-                attention_mask,
-                (batch_size, seq_length),
-                inputs_embeds,
-                past_key_values_length,
-                sliding_window=self.config.sliding_window,
-            )
-        else:
-            # 4d mask is passed through the layers
-            attention_mask = _prepare_4d_causal_attention_mask(
-                attention_mask,
-                (batch_size, seq_length),
-                inputs_embeds,
-                past_key_values_length,
-                sliding_window=self.config.sliding_window,
+        if cache_position is None:
+            past_seen_tokens = past_key_values.get_seq_length() if past_key_values is not None else 0
+            cache_position = torch.arange(
+                past_seen_tokens, past_seen_tokens + inputs_embeds.shape[1], device=inputs_embeds.device
             )
 
+        if position_ids is None:
+            position_ids = cache_position.unsqueeze(0)
+
+        causal_mask = self._update_causal_mask(
+            attention_mask, inputs_embeds, cache_position, past_key_values, use_cache, output_attentions
+        )
+
         hidden_states = inputs_embeds
 
         # decoder layers
@@ -1023,20 +958,22 @@ class MistralModel(MistralPreTrainedModel):
                 layer_outputs = self._gradient_checkpointing_func(
                     decoder_layer.__call__,
                     hidden_states,
-                    attention_mask,
+                    causal_mask,
                     position_ids,
                     past_key_values,
                     output_attentions,
                     use_cache,
+                    cache_position,
                 )
             else:
                 layer_outputs = decoder_layer(
                     hidden_states,
-                    attention_mask=attention_mask,
+                    attention_mask=causal_mask,
                     position_ids=position_ids,
                     past_key_value=past_key_values,
                     output_attentions=output_attentions,
                     use_cache=use_cache,
+                    cache_position=cache_position,
                 )
 
             hidden_states = layer_outputs[0]
@@ -1053,9 +990,9 @@ class MistralModel(MistralPreTrainedModel):
         if output_hidden_states:
             all_hidden_states += (hidden_states,)
 
-        next_cache = None
-        if use_cache:
-            next_cache = next_decoder_cache.to_legacy_cache() if use_legacy_cache else next_decoder_cache
+        next_cache = next_decoder_cache if use_cache else None
+        if return_legacy_cache:
+            next_cache = next_cache.to_legacy_cache()
 
         if not return_dict:
             return tuple(v for v in [hidden_states, next_cache, all_hidden_states, all_self_attns] if v is not None)
@@ -1066,6 +1003,113 @@ class MistralModel(MistralPreTrainedModel):
             attentions=all_self_attns,
         )
 
+    def _update_causal_mask(
+        self,
+        attention_mask: torch.Tensor,
+        input_tensor: torch.Tensor,
+        cache_position: torch.Tensor,
+        past_key_values: Cache,
+        use_cache: bool,
+        output_attentions: bool,
+    ):
+        # TODO: As of torch==2.2.0, the `attention_mask` passed to the model in `generate` is 2D and of dynamic length even when the static
+        # KV cache is used. This is an issue for torch.compile which then recaptures cudagraphs at each decode steps due to the dynamic shapes.
+        # (`recording cudagraph tree for symint key 13`, etc.), which is VERY slow. A workaround is `@torch.compiler.disable`, but this prevents using
+        # `fullgraph=True`. See more context in https://github.com/huggingface/transformers/pull/29114
+
+        if self._attn_implementation == "flash_attention_2":
+            if attention_mask is not None and use_cache:
+                is_padding_right = attention_mask[:, -1].sum().item() != input_tensor.size()[0]
+                if is_padding_right:
+                    raise ValueError(
+                        "You are attempting to perform batched generation with padding_side='right'"
+                        " this may lead to unexpected behaviour for Flash Attention version of Mistral. Make sure to "
+                        " call `tokenizer.padding_side  = 'left'` before tokenizing the input. "
+                    )
+            if attention_mask is not None and 0.0 in attention_mask:
+                return attention_mask
+            return None
+
+        # For SDPA, when possible, we will rely on its `is_causal` argument instead of its `attn_mask` argument, in
+        # order to dispatch on Flash Attention 2. This feature is not compatible with static cache, as SDPA will fail
+        # to infer the attention mask.
+
+        # cache_position must be valid here no matter which cache we use
+        past_seen_tokens = cache_position[0] if past_key_values is not None else 0
+        using_static_cache = isinstance(past_key_values, StaticCache)
+        using_sliding_window_cache = isinstance(past_key_values, SlidingWindowCache)
+
+        if (
+            self.config._attn_implementation == "sdpa"
+            and not (using_static_cache or using_sliding_window_cache)
+            and not output_attentions
+        ):
+            if AttentionMaskConverter._ignore_causal_mask_sdpa(
+                attention_mask,
+                inputs_embeds=input_tensor,
+                past_key_values_length=past_seen_tokens,
+                sliding_window=self.config.sliding_window,
+                is_training=self.training,
+            ):
+                return None
+
+        dtype, device = input_tensor.dtype, input_tensor.device
+        min_dtype = torch.finfo(dtype).min
+        sequence_length = input_tensor.shape[1]
+        # SlidingWindowCache
+        if using_sliding_window_cache:
+            target_length = max(sequence_length, self.config.sliding_window)
+        # StaticCache
+        elif using_static_cache:
+            target_length = past_key_values.get_max_length()
+        # DynamicCache or no cache
+        else:
+            target_length = (
+                attention_mask.shape[-1]
+                if isinstance(attention_mask, torch.Tensor)
+                else past_seen_tokens + sequence_length + 1
+            )
+
+        if attention_mask is not None and attention_mask.dim() == 4:
+            # in this case we assume that the mask comes already in inverted form and requires no inversion or slicing
+            if attention_mask.max() != 0:
+                raise ValueError("Custom 4D attention mask should be passed in inverted form with max==0`")
+            causal_mask = attention_mask
+        else:
+            causal_mask = torch.full(
+                (sequence_length, target_length), fill_value=min_dtype, dtype=dtype, device=device
+            )
+            exclude_mask = torch.arange(target_length, device=device) > cache_position.reshape(-1, 1)
+            if self.config.sliding_window is not None:
+                if not using_sliding_window_cache or sequence_length > self.config.sliding_window:
+                    exclude_mask |= torch.arange(target_length, device=device) <= (
+                        cache_position.reshape(-1, 1) - self.config.sliding_window
+                    )
+            causal_mask *= exclude_mask
+            causal_mask = causal_mask[None, None, :, :].expand(input_tensor.shape[0], 1, -1, -1)
+            if attention_mask is not None:
+                causal_mask = causal_mask.clone()  # copy to contiguous memory for in-place edit
+                if attention_mask.dim() == 2:
+                    mask_length = attention_mask.shape[-1]
+                    padding_mask = causal_mask[:, :, :, :mask_length] + attention_mask[:, None, None, :]
+                    padding_mask = padding_mask == 0
+                    causal_mask[:, :, :, :mask_length] = causal_mask[:, :, :, :mask_length].masked_fill(
+                        padding_mask, min_dtype
+                    )
+
+        if (
+            self.config._attn_implementation == "sdpa"
+            and attention_mask is not None
+            and attention_mask.device.type == "cuda"
+            and not output_attentions
+        ):
+            # Attend to all tokens in fully masked rows in the causal_mask, for example the relevant first rows when
+            # using left padding. This is required by F.scaled_dot_product_attention memory-efficient attention path.
+            # Details: https://github.com/pytorch/pytorch/issues/110213
+            causal_mask = AttentionMaskConverter._unmask_unattended(causal_mask, min_dtype)
+
+        return causal_mask
+
 
 class MistralForCausalLM(MistralPreTrainedModel):
     _tied_weights_keys = ["lm_head.weight"]
@@ -1104,13 +1148,14 @@ class MistralForCausalLM(MistralPreTrainedModel):
         input_ids: torch.LongTensor = None,
         attention_mask: Optional[torch.Tensor] = None,
         position_ids: Optional[torch.LongTensor] = None,
-        past_key_values: Optional[List[torch.FloatTensor]] = None,
+        past_key_values: Optional[Union[Cache, List[torch.FloatTensor]]] = None,
         inputs_embeds: Optional[torch.FloatTensor] = None,
         labels: Optional[torch.LongTensor] = None,
         use_cache: Optional[bool] = None,
         output_attentions: Optional[bool] = None,
         output_hidden_states: Optional[bool] = None,
         return_dict: Optional[bool] = None,
+        cache_position: Optional[torch.LongTensor] = None,
     ) -> Union[Tuple, CausalLMOutputWithPast]:
         r"""
         Args:
@@ -1155,6 +1200,7 @@ class MistralForCausalLM(MistralPreTrainedModel):
             output_attentions=output_attentions,
             output_hidden_states=output_hidden_states,
             return_dict=return_dict,
+            cache_position=cache_position,
         )
 
         hidden_states = outputs[0]
@@ -1187,14 +1233,27 @@ class MistralForCausalLM(MistralPreTrainedModel):
         )
 
     def prepare_inputs_for_generation(
-        self, input_ids, past_key_values=None, attention_mask=None, inputs_embeds=None, **kwargs
+        self,
+        input_ids,
+        past_key_values=None,
+        attention_mask=None,
+        inputs_embeds=None,
+        cache_position=None,
+        use_cache=True,
+        **kwargs,
     ):
         # Omit tokens covered by past_key_values
+        past_length = 0
         if past_key_values is not None:
             if isinstance(past_key_values, Cache):
-                cache_length = past_key_values.get_seq_length()
-                past_length = past_key_values.seen_tokens
-                max_cache_length = past_key_values.get_max_length()
+                past_length = cache_position[0] if cache_position is not None else past_key_values.get_seq_length()
+                max_cache_length = (
+                    torch.tensor(past_key_values.get_max_length(), device=input_ids.device)
+                    if past_key_values.get_max_length() is not None
+                    else None
+                )
+                cache_length = past_length if max_cache_length is None else torch.min(max_cache_length, past_length)
+            # TODO joao: remove this `else` after `generate` prioritizes `Cache` objects
             else:
                 cache_length = past_length = past_key_values[0][0].shape[2]
                 max_cache_length = None
@@ -1227,17 +1286,33 @@ class MistralForCausalLM(MistralPreTrainedModel):
             if past_key_values:
                 position_ids = position_ids[:, -input_ids.shape[1] :]
 
+        # crop the attention_mask to sliding window size during decode phase if using SlidingWindowCache
+        if (
+            past_length > 0
+            and attention_mask is not None
+            and isinstance(past_key_values, SlidingWindowCache)
+            and attention_mask.shape[1] > past_key_values.sliding_window_size
+        ):
+            attention_mask = attention_mask[:, -past_key_values.sliding_window_size :]
+
         # if `inputs_embeds` are passed, we only want to use them in the 1st generation step
         if inputs_embeds is not None and past_key_values is None:
             model_inputs = {"inputs_embeds": inputs_embeds}
         else:
-            model_inputs = {"input_ids": input_ids}
+            model_inputs = {"input_ids": input_ids.contiguous()}
+
+        input_length = position_ids.shape[-1] if position_ids is not None else input_ids.shape[-1]
+        if cache_position is None:
+            cache_position = torch.arange(past_length, past_length + input_length, device=input_ids.device)
+        elif use_cache:
+            cache_position = cache_position[-input_length:]
 
         model_inputs.update(
             {
                 "position_ids": position_ids,
+                "cache_position": cache_position,
                 "past_key_values": past_key_values,
-                "use_cache": kwargs.get("use_cache"),
+                "use_cache": use_cache,
                 "attention_mask": attention_mask,
             }
         )

src/transformers/models/mixtral/modeling_mixtral.py

@@ -181,7 +181,8 @@ class MixtralRMSNorm(nn.Module):
         return self.weight * hidden_states.to(input_dtype)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Mixtral
+# copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Mixtral
+# TODO @longjie no longer copied from Mistral after static cache
 class MixtralRotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -226,7 +227,8 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# TODO @longjie no longer copied from Mistral after static cache
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 
@@ -268,7 +270,8 @@ def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor:
     return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralAttention with Mistral->Mixtral
+# copied from transformers.models.mistral.modeling_mistral.MistralAttention with Mistral->Mixtral
+# TODO @longjie no longer copied from Mistral after static cache
 class MixtralAttention(nn.Module):
     """
     Multi-headed attention from 'Attention Is All You Need' paper. Modified to use sliding window attention: Longformer
@@ -392,7 +395,8 @@ class MixtralAttention(nn.Module):
         return attn_output, attn_weights, past_key_value
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralFlashAttention2 with Mistral->Mixtral
+# copied from transformers.models.mistral.modeling_mistral.MistralFlashAttention2 with Mistral->Mixtral
+# TODO @longjie no longer copied from Mistral after static cache
 class MixtralFlashAttention2(MixtralAttention):
     """
     Mixtral flash attention module. This module inherits from `MixtralAttention` as the weights of the module stays
@@ -679,7 +683,8 @@ class MixtralFlashAttention2(MixtralAttention):
         )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralSdpaAttention with Mistral->Mixtral
+# copied from transformers.models.mistral.modeling_mistral.MistralSdpaAttention with Mistral->Mixtral
+# TODO @longjie no longer copied from Mistral after static cache
 class MixtralSdpaAttention(MixtralAttention):
     """
     Mixtral attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from
@@ -958,7 +963,7 @@ MIXTRAL_START_DOCSTRING = r"""
     "The bare Mixtral Model outputting raw hidden-states without any specific head on top.",
     MIXTRAL_START_DOCSTRING,
 )
-# Copied from transformers.models.mistral.modeling_mistral.MistralPreTrainedModel with Mistral->Mixtral
+# Copied from transformers.models.qwen2.modeling_qwen2.Qwen2PreTrainedModel with Qwen2->Mixtral
 class MixtralPreTrainedModel(PreTrainedModel):
     config_class = MixtralConfig
     base_model_prefix = "model"
@@ -1052,7 +1057,8 @@ MIXTRAL_INPUTS_DOCSTRING = r"""
     "The bare Mixtral Model outputting raw hidden-states without any specific head on top.",
     MIXTRAL_START_DOCSTRING,
 )
-# Copied from transformers.models.mistral.modeling_mistral.MistralModel with MISTRAL->MIXTRAL,Mistral->Mixtral
+# copied from transformers.models.mistral.modeling_mistral.MistralModel with MISTRAL->MIXTRAL,Mistral->Mixtral
+# TODO @longjie no longer copied from Mistral after static cache
 class MixtralModel(MixtralPreTrainedModel):
     """
     Transformer decoder consisting of *config.num_hidden_layers* layers. Each layer is a [`MixtralDecoderLayer`]

src/transformers/models/persimmon/modeling_persimmon.py

@@ -45,7 +45,7 @@ logger = logging.get_logger(__name__)
 _CONFIG_FOR_DOC = "PersimmonConfig"
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Persimmon
+#  Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding with Mixtral->Persimmon
 class PersimmonRotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -137,7 +137,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 

src/transformers/models/phi/modeling_phi.py

@@ -76,7 +76,7 @@ def _get_unpad_data(attention_mask):
     )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Phi
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding with Mixtral->Phi
 class PhiRotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -168,7 +168,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 

src/transformers/models/qwen2/modeling_qwen2.py

@@ -94,7 +94,7 @@ class Qwen2RMSNorm(nn.Module):
         return self.weight * hidden_states.to(input_dtype)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Qwen2
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding with Mixtral->Qwen2
 class Qwen2RotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -139,7 +139,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 
@@ -611,7 +611,7 @@ class Qwen2FlashAttention2(Qwen2Attention):
         )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralSdpaAttention with Mistral->Qwen2
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralSdpaAttention with Mixtral->Qwen2
 class Qwen2SdpaAttention(Qwen2Attention):
     """
     Qwen2 attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from

src/transformers/models/qwen2_moe/modeling_qwen2_moe.py

@@ -170,7 +170,7 @@ class Qwen2MoeRMSNorm(nn.Module):
         return self.weight * hidden_states.to(input_dtype)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Qwen2Moe
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding with Mixtral->Qwen2Moe
 class Qwen2MoeRotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -215,7 +215,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 
@@ -689,7 +689,7 @@ class Qwen2MoeFlashAttention2(Qwen2MoeAttention):
         )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralSdpaAttention with Mistral->Qwen2Moe
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralSdpaAttention with Mixtral->Qwen2Moe
 class Qwen2MoeSdpaAttention(Qwen2MoeAttention):
     """
     Qwen2Moe attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from

src/transformers/models/stablelm/modeling_stablelm.py

@@ -71,7 +71,7 @@ def _get_unpad_data(attention_mask):
     )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->StableLm
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding with Mixtral->StableLm
 class StableLmRotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -163,7 +163,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 

src/transformers/models/starcoder2/modeling_starcoder2.py

@@ -74,7 +74,7 @@ def _get_unpad_data(attention_mask):
     )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Starcoder2
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralRotaryEmbedding with Mixtral->Starcoder2
 class Starcoder2RotaryEmbedding(nn.Module):
     def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
         super().__init__()
@@ -119,7 +119,7 @@ def rotate_half(x):
     return torch.cat((-x2, x1), dim=-1)
 
 
-# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
+# Copied from transformers.models.mixtral.modeling_mixtral.apply_rotary_pos_emb
 def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
     """Applies Rotary Position Embedding to the query and key tensors.
 
@@ -590,7 +590,7 @@ class Starcoder2FlashAttention2(Starcoder2Attention):
         )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralSdpaAttention with Mistral->Starcoder2
+# Copied from transformers.models.mixtral.modeling_mixtral.MixtralSdpaAttention with Mixtral->Starcoder2
 class Starcoder2SdpaAttention(Starcoder2Attention):
     """
     Starcoder2 attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from
@@ -703,7 +703,7 @@ class Starcoder2DecoderLayer(nn.Module):
         self.input_layernorm = nn.LayerNorm(config.hidden_size, eps=config.norm_epsilon)
         self.post_attention_layernorm = nn.LayerNorm(config.hidden_size, eps=config.norm_epsilon)
 
-    # Copied from transformers.models.mistral.modeling_mistral.MistralDecoderLayer.forward
+    # Copied from transformers.models.qwen2.modeling_qwen2.Qwen2DecoderLayer.forward
     def forward(
         self,
         hidden_states: torch.Tensor,
@@ -780,7 +780,7 @@ STARCODER2_START_DOCSTRING = r"""
     "The bare Starcoder2 Model outputting raw hidden-states without any specific head on top.",
     STARCODER2_START_DOCSTRING,
 )
-# Copied from transformers.models.mistral.modeling_mistral.MistralPreTrainedModel with Mistral->Starcoder2
+# Copied from transformers.models.qwen2.modeling_qwen2.Qwen2PreTrainedModel with Qwen2->Starcoder2
 class Starcoder2PreTrainedModel(PreTrainedModel):
     config_class = Starcoder2Config
     base_model_prefix = "model"
@@ -1057,7 +1057,7 @@ class Starcoder2Model(Starcoder2PreTrainedModel):
         )
 
 
-# Copied from transformers.models.mistral.modeling_mistral.MistralForCausalLM with MISTRAL->STARCODER2,Mistral-7B-v0.1->starcoder2-7b_16k,Mistral->Starcoder2,mistralai->bigcode
+# Copied from transformers.models.qwen2.modeling_qwen2.Qwen2ForCausalLM with QWEN2->STARCODER2,Qwen2->Starcoder2
 class Starcoder2ForCausalLM(Starcoder2PreTrainedModel):
     _tied_weights_keys = ["lm_head.weight"]
 
@@ -1090,6 +1090,7 @@ class Starcoder2ForCausalLM(Starcoder2PreTrainedModel):
 
     @add_start_docstrings_to_model_forward(STARCODER2_INPUTS_DOCSTRING)
     @replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC)
+    # Ignore copy
     def forward(
         self,
         input_ids: torch.LongTensor = None,

tests/models/mistral/test_modeling_mistral.py

@@ -12,14 +12,14 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-""" Testing suite for the PyTorch Mistral model. """
-
+"""Testing suite for the PyTorch Mistral model."""
 
 import gc
 import tempfile
 import unittest
 
 import pytest
+from packaging import version
 
 from transformers import AutoTokenizer, MistralConfig, is_torch_available, set_seed
 from transformers.testing_utils import (
@@ -648,6 +648,74 @@ class MistralIntegrationTest(unittest.TestCase):
         backend_empty_cache(torch_device)
         gc.collect()
 
+    @slow
+    def test_compile_static_cache(self):
+        # `torch==2.2` will throw an error on this test (as in other compilation tests), but torch==2.1.2 and torch>2.2
+        # work as intended. See https://github.com/pytorch/pytorch/issues/121943
+        if version.parse(torch.__version__) < version.parse("2.3.0"):
+            self.skipTest("This test requires torch >= 2.3 to run.")
+
+        NUM_TOKENS_TO_GENERATE = 40
+        EXPECTED_TEXT_COMPLETION = {
+            8: [
+                "My favourite condiment is 100% ketchup. I love it on everything. "
+                "I’m not a big fan of mustard, mayo, or relish. I’m not a fan of pickles"
+            ],
+            7: [
+                "My favourite condiment is 100% ketchup. I love it on everything. "
+                "I’m not a big fan of mustard, mayo, or relish. I’m not a fan of pickles"
+            ],
+        }
+
+        prompts = ["My favourite condiment is "]
+        tokenizer = AutoTokenizer.from_pretrained("mistralai/Mistral-7B-v0.1", use_fast=False)
+        tokenizer.pad_token = tokenizer.eos_token
+        model = MistralForCausalLM.from_pretrained(
+            "mistralai/Mistral-7B-v0.1", device_map="sequential", torch_dtype=torch.float16
+        )
+        inputs = tokenizer(prompts, return_tensors="pt", padding=True).to(model.device)
+
+        # Dynamic Cache
+        generated_ids = model.generate(**inputs, max_new_tokens=NUM_TOKENS_TO_GENERATE, do_sample=False)
+        dynamic_text = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)
+        self.assertEqual(EXPECTED_TEXT_COMPLETION[self.cuda_compute_capability_major_version], dynamic_text)
+
+        # Static Cache
+        generated_ids = model.generate(
+            **inputs, max_new_tokens=NUM_TOKENS_TO_GENERATE, do_sample=False, cache_implementation="static"
+        )
+        static_text = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)
+        self.assertEqual(EXPECTED_TEXT_COMPLETION[self.cuda_compute_capability_major_version], static_text)
+
+        # Sliding Window Cache
+        generated_ids = model.generate(
+            **inputs, max_new_tokens=NUM_TOKENS_TO_GENERATE, do_sample=False, cache_implementation="sliding_window"
+        )
+        static_text = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)
+        self.assertEqual(EXPECTED_TEXT_COMPLETION[self.cuda_compute_capability_major_version], static_text)
+
+        # Static Cache + compile
+        forward_function = model.forward
+        model.forward = torch.compile(forward_function, mode="reduce-overhead", fullgraph=True)
+        generated_ids = model.generate(
+            **inputs, max_new_tokens=NUM_TOKENS_TO_GENERATE, do_sample=False, cache_implementation="static"
+        )
+        static_compiled_text = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)
+        self.assertEqual(EXPECTED_TEXT_COMPLETION[self.cuda_compute_capability_major_version], static_compiled_text)
+
+        # Sliding Window Cache + compile
+        torch._dynamo.reset()
+        model.forward = torch.compile(forward_function, mode="reduce-overhead", fullgraph=True)
+        generated_ids = model.generate(
+            **inputs, max_new_tokens=NUM_TOKENS_TO_GENERATE, do_sample=False, cache_implementation="sliding_window"
+        )
+        static_compiled_text = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)
+        self.assertEqual(EXPECTED_TEXT_COMPLETION[self.cuda_compute_capability_major_version], static_compiled_text)
+
+        del model
+        backend_empty_cache(torch_device)
+        gc.collect()
+
 
 @slow
 @require_torch_gpu