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faiss/acinclude/ax_check_cpu.m4

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Improve arm64 support. (#676) * Improve Arm64 support. Make library compile and run on Arm64 8.2 (Nvidia Xavier arm+cuda) `configure` is regenerated * remove simd from utils.cpp
2019-02-15 20:13:49 +08:00
# serial 1
AC_DEFUN([AX_CPU_ARCH], [
AC_MSG_CHECKING([for cpu arch])
Run time detection of avx2 for conda packages. (#957) * Build conda CPU packages with run-time detection of AVX2. * Add cudatoolkit 10.1 to conda list. * Default to sse4 on x86_64.
2019-09-21 02:17:01 +08:00
AC_CANONICAL_TARGET
Dynamically detect avx2 capabilities (#877) * Install scipy via pip rather than system package manager * Dynamically detect AVX2 capability * Simplify build on TravisCI
2019-06-28 19:50:46 +08:00
Run time detection of avx2 for conda packages. (#957) * Build conda CPU packages with run-time detection of AVX2. * Add cudatoolkit 10.1 to conda list. * Default to sse4 on x86_64.
2019-09-21 02:17:01 +08:00
case $target in
amd64-* | x86_64-*)
ARCH_CPUFLAGS="-mpopcnt -msse4"
ARCH_CXXFLAGS="-m64"
;;
aarch64*-*)
Improve arm64 support. (#676) * Improve Arm64 support. Make library compile and run on Arm64 8.2 (Nvidia Xavier arm+cuda) `configure` is regenerated * remove simd from utils.cpp
2019-02-15 20:13:49 +08:00
dnl This is an arch for Nvidia Xavier a proper detection would be nice.
Run time detection of avx2 for conda packages. (#957) * Build conda CPU packages with run-time detection of AVX2. * Add cudatoolkit 10.1 to conda list. * Default to sse4 on x86_64.
2019-09-21 02:17:01 +08:00
ARCH_CPUFLAGS="-march=armv8.2-a"
;;
*) ;;
esac
AC_MSG_RESULT([$target CPUFLAGS+="$ARCH_CPUFLAGS" CXXFLAGS+="$ARCH_CXXFLAGS"])
Improve arm64 support. (#676) * Improve Arm64 support. Make library compile and run on Arm64 8.2 (Nvidia Xavier arm+cuda) `configure` is regenerated * remove simd from utils.cpp
2019-02-15 20:13:49 +08:00
AC_SUBST(ARCH_CPUFLAGS)
AC_SUBST(ARCH_CXXFLAGS)
])dnl