mirror of
https://github.com/sockspls/badfish
synced 2025-04-29 16:23:09 +00:00
d4358ddba7
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
153 lines
4 KiB
Bash
Executable file
153 lines
4 KiB
Bash
Executable file
#!/bin/sh
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#
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# Returns properties of the native system.
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# best architecture as supported by the CPU
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# filename of the best binary uploaded as an artifact during CI
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#
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# Check if all the given flags are present in the CPU flags list
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check_flags() {
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for flag; do
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printf '%s\n' "$flags" | grep -q -w "$flag" || return 1
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done
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}
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# Set the CPU flags list
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# remove underscores and points from flags, e.g. gcc uses avx512vnni, while some cpuinfo can have avx512_vnni, some systems use sse4_1 others sse4.1
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get_flags() {
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flags=$(awk '/^flags[ \t]*:|^Features[ \t]*:/{gsub(/^flags[ \t]*:[ \t]*|^Features[ \t]*:[ \t]*|[_.]/, ""); line=$0} END{print line}' /proc/cpuinfo)
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}
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# Check for gcc march "znver1" or "znver2" https://en.wikichip.org/wiki/amd/cpuid
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check_znver_1_2() {
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vendor_id=$(awk '/^vendor_id/{print $3; exit}' /proc/cpuinfo)
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cpu_family=$(awk '/^cpu family/{print $4; exit}' /proc/cpuinfo)
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[ "$vendor_id" = "AuthenticAMD" ] && [ "$cpu_family" = "23" ] && znver_1_2=true
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}
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# Set the file CPU loongarch64 architecture
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set_arch_loongarch64() {
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if check_flags 'lasx'; then
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true_arch='loongarch64-lasx'
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elif check_flags 'lsx'; then
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true_arch='lonngarch64-lsx'
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else
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true_arch='loongarch64'
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fi
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}
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# Set the file CPU x86_64 architecture
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set_arch_x86_64() {
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if check_flags 'avx512vnni' 'avx512dq' 'avx512f' 'avx512bw' 'avx512vl'; then
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true_arch='x86-64-vnni256'
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elif check_flags 'avx512f' 'avx512bw'; then
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true_arch='x86-64-avx512'
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elif [ -z "${znver_1_2+1}" ] && check_flags 'bmi2'; then
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true_arch='x86-64-bmi2'
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elif check_flags 'avx2'; then
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true_arch='x86-64-avx2'
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elif check_flags 'sse41' && check_flags 'popcnt'; then
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true_arch='x86-64-sse41-popcnt'
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else
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true_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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case $uname_s in
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'Darwin') # Mac OSX system
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case $uname_m in
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'arm64')
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true_arch='apple-silicon'
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file_arch='x86-64-sse41-popcnt' # Supported by Rosetta 2
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;;
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'x86_64')
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flags=$(sysctl -n machdep.cpu.features machdep.cpu.leaf7_features | tr '\n' ' ' | tr '[:upper:]' '[:lower:]' | tr -d '_.')
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set_arch_x86_64
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if [ "$true_arch" = 'x86-64-vnni256' ] || [ "$true_arch" = 'x86-64-avx512' ]; then
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file_arch='x86-64-bmi2'
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fi
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;;
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esac
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file_os='macos'
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file_ext='tar'
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;;
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'Linux') # Linux system
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get_flags
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case $uname_m in
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'x86_64')
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file_os='ubuntu'
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check_znver_1_2
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set_arch_x86_64
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;;
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'i686')
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file_os='ubuntu'
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true_arch='x86-32'
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;;
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'ppc64'*)
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file_os='ubuntu'
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set_arch_ppc_64
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;;
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'aarch64')
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file_os='android'
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true_arch='armv8'
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if check_flags 'asimddp'; then
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true_arch="$true_arch-dotprod"
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fi
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;;
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'armv7'*)
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file_os='android'
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true_arch='armv7'
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if check_flags 'neon'; then
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true_arch="$true_arch-neon"
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fi
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;;
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'loongarch64'*)
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file_os='linux'
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set_arch_loongarch64
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;;
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*) # Unsupported machine type, exit with error
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printf 'Unsupported machine type: %s\n' "$uname_m"
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exit 1
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;;
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esac
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file_ext='tar'
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;;
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'CYGWIN'*|'MINGW'*|'MSYS'*) # Windows system with POSIX compatibility layer
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get_flags
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check_znver_1_2
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set_arch_x86_64
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file_os='windows'
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file_ext='zip'
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;;
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*)
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# Unknown system type, exit with error
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printf 'Unsupported system type: %s\n' "$uname_s"
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exit 1
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;;
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esac
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if [ -z "$file_arch" ]; then
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file_arch=$true_arch
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fi
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file_name="stockfish-$file_os-$file_arch.$file_ext"
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printf '%s %s\n' "$true_arch" "$file_name"
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