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- # This file is use to check all support level of AVX on your machine
- # so that PaddlePaddle can unleash the vectorization power of muticore.
-
- include(CheckCXXSourceRuns)
- include(CheckCXXSourceCompiles)
-
- if(CMAKE_COMPILER_IS_GNUCC
- OR CMAKE_COMPILER_IS_GNUCXX
- OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
- set(MMX_FLAG "-mmmx")
- set(SSE2_FLAG "-msse2")
- set(SSE3_FLAG "-msse3")
- set(AVX_FLAG "-mavx")
- set(AVX2_FLAG "-mavx2")
- set(AVX512F_FLAG "-mavx512f")
- elseif(MSVC)
- set(MMX_FLAG "/arch:MMX")
- set(SSE2_FLAG "/arch:SSE2")
- set(SSE3_FLAG "/arch:SSE3")
- set(AVX_FLAG "/arch:AVX")
- set(AVX2_FLAG "/arch:AVX2")
- endif()
-
- set(CMAKE_REQUIRED_FLAGS_RETAINED ${CMAKE_REQUIRED_FLAGS})
-
- # Check MMX
- set(CMAKE_REQUIRED_FLAGS ${MMX_FLAG})
- set(MMX_FOUND_EXITCODE
- 1
- CACHE STRING "Result from TRY_RUN" FORCE)
- check_cxx_source_runs(
- "
- #include <mmintrin.h>
- int main()
- {
- _mm_setzero_si64();
- return 0;
- }"
- MMX_FOUND)
-
- # Check SSE2
- set(CMAKE_REQUIRED_FLAGS ${SSE2_FLAG})
- set(SSE2_FOUND_EXITCODE
- 1
- CACHE STRING "Result from TRY_RUN" FORCE)
- check_cxx_source_runs(
- "
- #include <emmintrin.h>
- int main()
- {
- _mm_setzero_si128();
- return 0;
- }"
- SSE2_FOUND)
-
- # Check SSE3
- set(CMAKE_REQUIRED_FLAGS ${SSE3_FLAG})
- set(SSE3_FOUND_EXITCODE
- 1
- CACHE STRING "Result from TRY_RUN" FORCE)
- check_cxx_source_runs(
- "
- #include <pmmintrin.h>
- int main()
- {
- __m128d a = _mm_set1_pd(6.28);
- __m128d b = _mm_set1_pd(3.14);
- __m128d result = _mm_addsub_pd(a, b);
- result = _mm_movedup_pd(result);
- return 0;
- }"
- SSE3_FOUND)
-
- # Check AVX
- set(CMAKE_REQUIRED_FLAGS ${AVX_FLAG})
- set(AVX_FOUND_EXITCODE
- 1
- CACHE STRING "Result from TRY_RUN" FORCE)
- check_cxx_source_runs(
- "
- #include <immintrin.h>
- int main()
- {
- __m256 a = _mm256_set_ps(-1.0f, 2.0f, -3.0f, 4.0f, -1.0f, 2.0f, -3.0f, 4.0f);
- __m256 b = _mm256_set_ps(1.0f, 2.0f, 3.0f, 4.0f, 1.0f, 2.0f, 3.0f, 4.0f);
- __m256 result = _mm256_add_ps(a, b);
- return 0;
- }"
- AVX_FOUND)
-
- # Check AVX 2
- set(CMAKE_REQUIRED_FLAGS ${AVX2_FLAG})
- set(AVX2_FOUND_EXITCODE
- 1
- CACHE STRING "Result from TRY_RUN" FORCE)
- check_cxx_source_runs(
- "
- #include <immintrin.h>
- int main()
- {
- __m256i a = _mm256_set_epi32 (-1, 2, -3, 4, -1, 2, -3, 4);
- __m256i result = _mm256_abs_epi32 (a);
- return 0;
- }"
- AVX2_FOUND)
-
- # Check AVX512F
- set(CMAKE_REQUIRED_FLAGS ${AVX512F_FLAG})
- set(AVX512F_FOUND_EXITCODE
- 1
- CACHE STRING "Result from TRY_RUN" FORCE)
- check_cxx_source_runs(
- "
- #include <immintrin.h>
- int main()
- {
- __m512i a = _mm512_set_epi32 (-1, 2, -3, 4, -1, 2, -3, 4,
- 13, -5, 6, -7, 9, 2, -6, 3);
- __m512i result = _mm512_abs_epi32 (a);
- return 0;
- }"
- AVX512F_FOUND)
-
- set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_RETAINED})
- mark_as_advanced(MMX_FOUND SSE2_FOUND SSE3_FOUND AVX_FOUND AVX2_FOUND
- AVX512F_FOUND)
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