amx_microbenchmark

Build

If the build step succeeds, the binary amx_microbenchmark.out will be generated in bin, and the objects will be generated in build.

There is a config file named config.mk, and user can modify or add build time config variables in the bulid configs section.

Run

It will execute amx_microbenchmark.out according to the runtime configs defined in the runtime configs section also in config.mk. User can also run ./bin/amx_microbenchmark.out directly given runtime arguments as follows:

# number of iterations must no less than 10^9 to fully utilize AMX, useless args MNK in tmm level benchmark
./bin/amx_microbenchmark.out l1 10000 64 64 64

Note

Frequency

We assumed that the CPU frequency is 3.126MHz, In Intel(R) Xeon(R) w3-2435, we need to shut down TurboBoost.

# CHECK THE SUPPORT FOR INTEL_PSTATE
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
# SHUT DOWN TEMPORARY
echo 1 | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo
# LOOK UP THE STATUS
cat /sys/devices/system/cpu/intel_pstate/no_turbo

use turbostat to check the frequency