109 lines
4.4 KiB
C++
109 lines
4.4 KiB
C++
/***************************************************************************************************
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* Copyright (c) 2017 - 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************************************/
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#pragma once
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#include "cuda_runtime.h"
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#include <iostream>
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/**
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* Panic wrapper for unwinding CUTLASS errors
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*/
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#define CUTLASS_CHECK(status) \
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{ \
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cutlass::Status error = status; \
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if (error != cutlass::Status::kSuccess) { \
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std::cerr << "Got cutlass error: " << cutlassGetStatusString(error) << " at: " << __LINE__ \
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<< std::endl; \
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exit(EXIT_FAILURE); \
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} \
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}
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/**
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* Panic wrapper for unwinding CUDA runtime errors
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*/
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#define CUDA_CHECK(status) \
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{ \
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cudaError_t error = status; \
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if (error != cudaSuccess) { \
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std::cerr << "Got bad cuda status: " << cudaGetErrorString(error) \
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<< " at line: " << __LINE__ << std::endl; \
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exit(EXIT_FAILURE); \
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} \
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}
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/**
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* GPU timer for recording the elapsed time across kernel(s) launched in GPU stream
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*/
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struct GpuTimer
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{
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cudaStream_t _stream_id;
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cudaEvent_t _start;
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cudaEvent_t _stop;
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/// Constructor
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GpuTimer() : _stream_id(0)
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{
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CUDA_CHECK(cudaEventCreate(&_start));
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CUDA_CHECK(cudaEventCreate(&_stop));
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}
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/// Destructor
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~GpuTimer()
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{
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CUDA_CHECK(cudaEventDestroy(_start));
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CUDA_CHECK(cudaEventDestroy(_stop));
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}
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/// Start the timer for a given stream (defaults to the default stream)
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void start(cudaStream_t stream_id = 0)
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{
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_stream_id = stream_id;
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CUDA_CHECK(cudaEventRecord(_start, _stream_id));
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}
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/// Stop the timer
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void stop()
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{
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CUDA_CHECK(cudaEventRecord(_stop, _stream_id));
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}
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/// Return the elapsed time (in milliseconds)
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float elapsed_millis()
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{
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float elapsed = 0.0;
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CUDA_CHECK(cudaEventSynchronize(_stop));
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CUDA_CHECK(cudaEventElapsedTime(&elapsed, _start, _stop));
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return elapsed;
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}
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};
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