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Add autodetection of ppc64 architectures
That allows 'make -j profile-build' work on ppc64 architectures, setting the use of the appropriate SIMD extension, Altivec or VSX. For VSX, gcc allows to map SSE2 intrinsics and get benefit of the existing SIMD code. On PowerMac G5, using altivec provides a performance improvement of 30%. On Talos 2, using vsx provides a performance improvement of 120%. closes https://github.com/official-stockfish/Stockfish/pull/5624 No functional change
This commit is contained in:
Mathias Parnaudeau
Disservin
parent
76923bb6fe
commit
d4358ddba7
3 changed files with 59 additions and 2 deletions
1
AUTHORS
1
AUTHORS
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@ -143,6 +143,7 @@ Maciej Żenczykowski (zenczykowski)
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Malcolm Campbell (xoto10)
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Mark Tenzer (31m059)
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marotear
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Mathias Parnaudeau (mparnaudeau)
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Matt Ginsberg (mattginsberg)
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Matthew Lai (matthewlai)
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Matthew Sullivan (Matt14916)
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@ -54,6 +54,20 @@ set_arch_x86_64() {
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fi
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}
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set_arch_ppc_64() {
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if $(grep -q -w "altivec" /proc/cpuinfo); then
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power=$(grep -oP -m 1 'cpu\t+: POWER\K\d+' /proc/cpuinfo)
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if [ "0$power" -gt 7 ]; then
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# VSX started with POWER8
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true_arch='ppc-64-vsx'
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else
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true_arch='ppc-64-altivec'
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fi
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else
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true_arch='ppc-64'
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fi
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}
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# Check the system type
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uname_s=$(uname -s)
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uname_m=$(uname -m)
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@ -87,6 +101,10 @@ case $uname_s in
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file_os='ubuntu'
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true_arch='x86-32'
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;;
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'ppc64'*)
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file_os='ubuntu'
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set_arch_ppc_64
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;;
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'aarch64')
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file_os='android'
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true_arch='armv8'
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42
src/Makefile
42
src/Makefile
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@ -98,6 +98,8 @@ VPATH = syzygy:nnue:nnue/features
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# avx512 = yes/no --- -mavx512bw --- Use Intel Advanced Vector Extensions 512
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# vnni256 = yes/no --- -mavx256vnni --- Use Intel Vector Neural Network Instructions 512 with 256bit operands
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# vnni512 = yes/no --- -mavx512vnni --- Use Intel Vector Neural Network Instructions 512
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# altivec = yes/no --- -maltivec --- Use PowerPC Altivec SIMD extension
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# vsx = yes/no --- -mvsx --- Use POWER VSX SIMD extension
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# neon = yes/no --- -DUSE_NEON --- Use ARM SIMD architecture
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# dotprod = yes/no --- -DUSE_NEON_DOTPROD --- Use ARM advanced SIMD Int8 dot product instructions
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# lsx = yes/no --- -mlsx --- Use Loongson SIMD eXtension
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@ -126,7 +128,7 @@ endif
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ifeq ($(ARCH), $(filter $(ARCH), \
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x86-64-vnni512 x86-64-vnni256 x86-64-avx512 x86-64-avxvnni x86-64-bmi2 \
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x86-64-avx2 x86-64-sse41-popcnt x86-64-modern x86-64-ssse3 x86-64-sse3-popcnt \
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x86-64 x86-32-sse41-popcnt x86-32-sse2 x86-32 ppc-64 ppc-32 e2k \
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x86-64 x86-32-sse41-popcnt x86-32-sse2 x86-32 ppc-64 ppc-64-altivec ppc-64-vsx ppc-32 e2k \
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armv7 armv7-neon armv8 armv8-dotprod apple-silicon general-64 general-32 riscv64 \
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loongarch64 loongarch64-lsx loongarch64-lasx))
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SUPPORTED_ARCH=true
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@ -151,6 +153,8 @@ avxvnni = no
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avx512 = no
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vnni256 = no
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vnni512 = no
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altivec = no
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vsx = no
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neon = no
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dotprod = no
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arm_version = 0
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@ -360,6 +364,20 @@ ifeq ($(ARCH),ppc-64)
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prefetch = yes
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endif
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ifeq ($(ARCH),ppc-64-altivec)
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arch = ppc64
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popcnt = yes
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prefetch = yes
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altivec = yes
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endif
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ifeq ($(ARCH),ppc-64-vsx)
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arch = ppc64
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popcnt = yes
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prefetch = yes
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vsx = yes
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endif
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ifeq ($(findstring e2k,$(ARCH)),e2k)
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arch = e2k
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mmx = yes
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@ -650,7 +668,7 @@ else
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endif
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ifeq ($(popcnt),yes)
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ifeq ($(arch),$(filter $(arch),ppc64 armv7 armv8 arm64))
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ifeq ($(arch),$(filter $(arch),ppc64 ppc64-altivec ppc64-vsx armv7 armv8 arm64))
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CXXFLAGS += -DUSE_POPCNT
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else
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CXXFLAGS += -msse3 -mpopcnt -DUSE_POPCNT
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@ -720,6 +738,20 @@ ifeq ($(mmx),yes)
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endif
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endif
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ifeq ($(altivec),yes)
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CXXFLAGS += -maltivec
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ifeq ($(COMP),gcc)
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CXXFLAGS += -mabi=altivec
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endif
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endif
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ifeq ($(vsx),yes)
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CXXFLAGS += -mvsx
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ifeq ($(COMP),gcc)
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CXXFLAGS += -DNO_WARN_X86_INTRINSICS -DUSE_SSE2
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endif
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endif
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ifeq ($(neon),yes)
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CXXFLAGS += -DUSE_NEON=$(arm_version)
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ifeq ($(KERNEL),Linux)
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@ -852,6 +884,8 @@ help:
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@echo "x86-32-sse2 > x86 32-bit with sse2 support"
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@echo "x86-32 > x86 32-bit generic (with mmx compile support)"
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@echo "ppc-64 > PPC 64-bit"
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@echo "ppc-64-altivec > PPC 64-bit with altivec support"
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@echo "ppc-64-vsx > PPC 64-bit with vsx support"
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@echo "ppc-32 > PPC 32-bit"
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@echo "armv7 > ARMv7 32-bit"
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@echo "armv7-neon > ARMv7 32-bit with popcnt and neon"
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@ -987,6 +1021,8 @@ config-sanity: net
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@echo "avx512: '$(avx512)'"
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@echo "vnni256: '$(vnni256)'"
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@echo "vnni512: '$(vnni512)'"
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@echo "altivec: '$(altivec)'"
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@echo "vsx: '$(vsx)'"
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@echo "neon: '$(neon)'"
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@echo "dotprod: '$(dotprod)'"
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@echo "arm_version: '$(arm_version)'"
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@ -1020,6 +1056,8 @@ config-sanity: net
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@test "$(avx512)" = "yes" || test "$(avx512)" = "no"
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@test "$(vnni256)" = "yes" || test "$(vnni256)" = "no"
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@test "$(vnni512)" = "yes" || test "$(vnni512)" = "no"
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@test "$(altivec)" = "yes" || test "$(altivec)" = "no"
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@test "$(vsx)" = "yes" || test "$(vsx)" = "no"
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@test "$(neon)" = "yes" || test "$(neon)" = "no"
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@test "$(lsx)" = "yes" || test "$(lsx)" = "no"
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@test "$(lasx)" = "yes" || test "$(lasx)" = "no"
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