129 lines
4.5 KiB
Plaintext
129 lines
4.5 KiB
Plaintext
/***************************************************************************************************
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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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/*! \file
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\brief Tests for basic float8 functionality
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*/
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#include "../common/cutlass_unit_test.h"
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#include "cutlass/numeric_types.h"
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#include <bitset>
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/////////////////////////////////////////////////////////////////////////////////////////////////
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TEST(float_e4m3_t, host_conversion) {
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using FP8 = cutlass::float_e4m3_t;
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using Base = typename FP8::Base;
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for (int i = -8; i < 8; ++i) {
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float f = static_cast<float>(i);
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cutlass::int4b_t s = static_cast<cutlass::int4b_t>(i);
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FP8 w = static_cast<FP8>(s);
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FP8 x = static_cast<FP8>(i);
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FP8 y = static_cast<FP8>(f);
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EXPECT_TRUE(static_cast<cutlass::int4b_t>(w) == s);
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EXPECT_TRUE(static_cast<int>(x) == i);
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EXPECT_TRUE(static_cast<float>(y) == f);
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if (i >= 0) {
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cutlass::uint4b_t u = static_cast<cutlass::uint4b_t>(i);
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FP8 z = static_cast<FP8>(u);
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EXPECT_TRUE(static_cast<unsigned>(z) == u);
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}
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}
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// Try out default-ctor (zero initialization of primitive proxy type)
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EXPECT_TRUE(FP8() == 0.0_fe4m3);
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// Try out user-defined literals
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EXPECT_TRUE(FP8(7) == 7_fe4m3);
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EXPECT_TRUE(7 == static_cast<int>(7_fe4m3));
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}
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TEST(float_e5m2_t, host_conversion) {
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using FP8 = cutlass::float_e5m2_t;
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using Base = typename FP8::Base;
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for (int i = -8; i < 8; ++i) {
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float f = static_cast<float>(i);
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cutlass::int4b_t s = static_cast<cutlass::int4b_t>(i);
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FP8 w = static_cast<FP8>(s);
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FP8 x = static_cast<FP8>(i);
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FP8 y = static_cast<FP8>(f);
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EXPECT_TRUE(static_cast<cutlass::int4b_t>(w) == s);
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EXPECT_TRUE(static_cast<int>(x) == i);
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EXPECT_TRUE(static_cast<float>(y) == f);
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if (i >= 0) {
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cutlass::uint4b_t u = static_cast<cutlass::uint4b_t>(i);
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FP8 z = static_cast<FP8>(u);
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EXPECT_TRUE(static_cast<cutlass::uint4b_t>(z) == u);
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}
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}
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// Try out default-ctor (zero initialization of primitive proxy type)
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EXPECT_TRUE(FP8() == 0.0_fe5m2);
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// Try out user-defined literals
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EXPECT_TRUE(FP8(7) == 7_fe5m2);
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EXPECT_TRUE(7 == static_cast<int>(7_fe5m2));
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}
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TEST(float_e4m3_t, host_arithmetic) {
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for (int i = -4; i < 4; ++i) {
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for (int j = -4; j < 4; ++j) {
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cutlass::float_e4m3_t x = static_cast<cutlass::float_e4m3_t>(i);
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cutlass::float_e4m3_t y = static_cast<cutlass::float_e4m3_t>(j);
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EXPECT_TRUE(static_cast<int>(x + y) == (i + j));
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}
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}
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}
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TEST(float_e5m2_t, host_arithmetic) {
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for (int i = -4; i < 4; ++i) {
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for (int j = -4; j < 4; ++j) {
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cutlass::float_e5m2_t x = static_cast<cutlass::float_e5m2_t>(i);
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cutlass::float_e5m2_t y = static_cast<cutlass::float_e5m2_t>(j);
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EXPECT_TRUE(static_cast<int>(x + y) == (i + j));
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}
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}
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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