Pick an executable based on CPU capabilities and pass the remaining command line flags to the target program. Designed for x86-64 systems, including the x86-64 microarchitecture levels (x86-64-v2, x86-64-v3, x86-64-v4).
Call subarch-select with argument pairs that list CPU features (as in /proc/cpuinfo "flags"), and a path to execute if the flags are all matched.
The first set of flags that match the system capabilities will select the given path.
Arguments to the program should be passed after --.
Usage: subarch-select [features] [path] ... [--] [program arguments]
Example: subarch-select avx2,sse4_2 /path/to/program-avx2 avx,sse2 /path/to/program-avx -- --arg1 --arg2 --arg3
make
Google's cpu_features library.
This is libcpu-features-dev on Debian/Ubuntu systems.
Erik Garrison erik.garrison@gmail.com Michael R. Crusoe crusoe@debian.org