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Merge pull request #800 from gangliao/check_avx

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Add SIMD flags for runtime check
avx_docs
gangliao 8 years ago committed by GitHub
parent 9336756145 bf5342702f
commit 0cdfa8cd6b
4 changed files with 181 additions and 0 deletions
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57
paddle/utils/CpuId.cpp
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@ -0,0 +1,57 @@
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
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. */
#include "paddle/utils/CpuId.h"
#include "paddle/utils/Util.h"
#ifdef _WIN32
/// for MSVC
#define CPUID(info, x) __cpuidex(info, x, 0)
#else
#include <cpuid.h>
/// for GCC/Clang
#define CPUID(info, x) __cpuid_count(x, 0, info[0], info[1], info[2], info[3])
#endif
namespace paddle {
SIMDFlags::SIMDFlags() {
unsigned int cpuInfo[4];
// CPUID: https://en.wikipedia.org/wiki/CPUID
CPUID(cpuInfo, 0x00000001);
simd_flags_ |= cpuInfo[3] & (1 << 25) ? SIMD_SSE : SIMD_NONE;
simd_flags_ |= cpuInfo[3] & (1 << 26) ? SIMD_SSE2 : SIMD_NONE;
simd_flags_ |= cpuInfo[2] & (1 << 0) ? SIMD_SSE3 : SIMD_NONE;
simd_flags_ |= cpuInfo[2] & (1 << 9) ? SIMD_SSSE3 : SIMD_NONE;
simd_flags_ |= cpuInfo[2] & (1 << 19) ? SIMD_SSE41 : SIMD_NONE;
simd_flags_ |= cpuInfo[2] & (1 << 20) ? SIMD_SSE42 : SIMD_NONE;
simd_flags_ |= cpuInfo[2] & (1 << 12) ? SIMD_FMA3 : SIMD_NONE;
simd_flags_ |= cpuInfo[2] & (1 << 28) ? SIMD_AVX : SIMD_NONE;
CPUID(cpuInfo, 0x00000007);
simd_flags_ |= cpuInfo[1] & (1 << 5) ? SIMD_AVX2 : SIMD_NONE;
simd_flags_ |= cpuInfo[1] & (1 << 16) ? SIMD_AVX512: SIMD_NONE;
CPUID(cpuInfo, 0x80000001);
simd_flags_ |= cpuInfo[2] & (1 << 16) ? SIMD_FMA4 : SIMD_NONE;
}
SIMDFlags* SIMDFlags::instance() {
static SIMDFlags instance;
return &instance;
}
} // namespace paddle

71
paddle/utils/CpuId.h
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/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
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. */
#pragma once
#include <iostream>
#include "DisableCopy.h"
namespace paddle {
class SIMDFlags final {
public:
DISABLE_COPY(SIMDFlags);
SIMDFlags();
static SIMDFlags* instance();
inline bool isSSE() const { return simd_flags_ & SIMD_SSE; }
inline bool isSSE2() const { return simd_flags_ & SIMD_SSE2; }
inline bool isSSE3() const { return simd_flags_ & SIMD_SSE3; }
inline bool isSSSE3() const { return simd_flags_ & SIMD_SSSE3; }
inline bool isSSE41() const { return simd_flags_ & SIMD_SSE41; }
inline bool isSSE42() const { return simd_flags_ & SIMD_SSE42; }
inline bool isFMA3() const { return simd_flags_ & SIMD_FMA3; }
inline bool isFMA4() const { return simd_flags_ & SIMD_FMA4; }
inline bool isAVX() const { return simd_flags_ & SIMD_AVX; }
inline bool isAVX2() const { return simd_flags_ & SIMD_AVX2; }
inline bool isAVX512()const { return simd_flags_ & SIMD_AVX512;}
private:
enum simd_t {
SIMD_NONE = 0, ///< None
SIMD_SSE = 1 << 0, ///< SSE
SIMD_SSE2 = 1 << 1, ///< SSE 2
SIMD_SSE3 = 1 << 2, ///< SSE 3
SIMD_SSSE3 = 1 << 3, ///< SSSE 3
SIMD_SSE41 = 1 << 4, ///< SSE 4.1
SIMD_SSE42 = 1 << 5, ///< SSE 4.2
SIMD_FMA3 = 1 << 6, ///< FMA 3
SIMD_FMA4 = 1 << 7, ///< FMA 4
SIMD_AVX = 1 << 8, ///< AVX
SIMD_AVX2 = 1 << 9, ///< AVX 2
SIMD_AVX512 = 1 << 10, ///< AVX 512
};
/// simd flags
int simd_flags_ = SIMD_NONE;
};
#define HAS_SSE SIMDFlags::instance()->isSSE()
#define HAS_SSE2 SIMDFlags::instance()->isSSE2()
#define HAS_SSE3 SIMDFlags::instance()->isSSE3()
#define HAS_SSSE3 SIMDFlags::instance()->isSSSE3()
#define HAS_SSE41 SIMDFlags::instance()->isSSE41()
#define HAS_SSE42 SIMDFlags::instance()->isSSE42()
#define HAS_FMA3 SIMDFlags::instance()->isFMA3()
#define HAS_FMA4 SIMDFlags::instance()->isFMA4()
#define HAS_AVX SIMDFlags::instance()->isAVX()
#define HAS_AVX2 SIMDFlags::instance()->isAVX2()
#define HAS_AVX512 SIMDFlags::instance()->isAVX512()
} // namespace paddle

1
paddle/utils/tests/CMakeLists.txt
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@ -5,6 +5,7 @@ add_simple_unittest(test_StringUtils)
add_simple_unittest(test_CustomStackTrace)
add_simple_unittest(test_ThreadBarrier)
add_simple_unittest(test_SpinLock)
add_simple_unittest(test_SIMDFlags)
add_executable(
test_CustomStackTracePrint

52
paddle/utils/tests/test_SIMDFlags.cpp
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/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
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. */
#include <gtest/gtest.h>
#include "paddle/utils/CpuId.h"
#include "paddle/utils/Logging.h"
#include "paddle/utils/Util.h"
using namespace paddle; // NOLINT
TEST(SIMDFlags, gccTest) {
#if (defined(__GNUC__) || defined(__GNUG__)) && !(defined(__clang__))
CHECK(!__builtin_cpu_supports("sse") != HAS_SSE);
CHECK(!__builtin_cpu_supports("sse2") != HAS_SSE2);
CHECK(!__builtin_cpu_supports("sse3") != HAS_SSE3);
CHECK(!__builtin_cpu_supports("ssse3") != HAS_SSSE3);
CHECK(!__builtin_cpu_supports("sse4.1")!= HAS_SSE41);
CHECK(!__builtin_cpu_supports("sse4.2")!= HAS_SSE42);
CHECK(!__builtin_cpu_supports("avx") != HAS_AVX);
CHECK(!__builtin_cpu_supports("avx2") != HAS_AVX2);
#endif
}
TEST(SIMDFlags, normalPrint) {
auto simd = SIMDFlags::instance();
LOG(INFO) << "Has SSE2: " << std::boolalpha << simd->isSSE2();
LOG(INFO) << "Has SSE3: " << std::boolalpha << simd->isSSE3();
LOG(INFO) << "Has SSSE3: " << std::boolalpha << simd->isSSSE3();
LOG(INFO) << "Has SSE4.1: " << std::boolalpha << simd->isSSE41();
LOG(INFO) << "Has SSE4.2: " << std::boolalpha << simd->isSSE42();
LOG(INFO) << "Has FMA3: " << std::boolalpha << simd->isFMA3();
LOG(INFO) << "Has FMA4: " << std::boolalpha << simd->isFMA4();
LOG(INFO) << "Has AVX: " << std::boolalpha << simd->isAVX();
LOG(INFO) << "Has AVX2: " << std::boolalpha << simd->isAVX2();
LOG(INFO) << "Has AVX512: " << std::boolalpha << simd->isAVX512();
}
int main(int argc, char** argv) {
testing::InitGoogleTest(&argc, argv);
paddle::initMain(argc, argv);
return RUN_ALL_TESTS();
}
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