BioD PNPI Git Repos - alexxy/gromacs.git/commit

biod.pnpi.spb.ru / alexxy / gromacs.git / commit

author	Erik Lindahl <erik.lindahl@gmail.com>
	Tue, 14 Mar 2017 13:35:35 +0000 (14:35 +0100)
committer	Erik Lindahl <erik.lindahl@gmail.com>
	Sun, 19 Mar 2017 12:16:40 +0000 (13:16 +0100)
commit	570db57b3ce38bd13c1ed3d13d1a34264f42e590
tree	aa9817d2ec20bf99469dcf64f48006b93d359643	tree \| snapshot
parent	4dbb7fdefc0e8faa2c5dda36eaf1ae4a95c5b501	commit \| diff

128-bit AVX2 SIMD for AMD Ryzen

While Ryzen supports 256-bit AVX2, the internal units are organized
to execute either a single 256-bit instruction or two 128-bit SIMD
instruction per cycle. Since most of our kernels are slightly
less efficient for wider SIMD, this improves performance by roughly
10%.

Change-Id: Ie601b1dbe13d70334cdf9284e236ad9132951ec9

18 files changed:

CMakeLists.txt		diff \| blob \| history
cmake/gmxDetectSimd.cmake		diff \| blob \| history
cmake/gmxManageSimd.cmake		diff \| blob \| history
src/config.h.cmakein		diff \| blob \| history
src/gromacs/hardware/cpuinfo.cpp		diff \| blob \| history
src/gromacs/hardware/cpuinfo.h		diff \| blob \| history
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128.h	[new file with mode: 0644]	blob
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128_definitions.h	[new file with mode: 0644]	blob
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128_general.h	[new file with mode: 0644]	blob
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128_simd4_double.h	[new file with mode: 0644]	blob
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128_simd4_float.h	[new file with mode: 0644]	blob
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128_simd_double.h	[new file with mode: 0644]	blob
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128_simd_float.h	[new file with mode: 0644]	blob
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128_util_double.h	[new file with mode: 0644]	blob
src/gromacs/simd/impl_x86_avx2_128/impl_x86_avx2_128_util_float.h	[new file with mode: 0644]	blob
src/gromacs/simd/simd.h		diff \| blob \| history
src/gromacs/simd/support.cpp		diff \| blob \| history
src/gromacs/simd/support.h		diff \| blob \| history

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