LIKWID profiler

[carstenbauer]

For those who are interested in using LIKWID with Julia.

Setting LIKWID markers:

GitHub - JuliaPerf/LIKWID.jl: Julia wrapper for the performance monitoring...

Using likwid-pin for Julia threads:

Thread affinitization: pinning Julia threads to cores

Alright, I’ve done some testing and had some discussion on Slack/GitHub. Let me share my findings. 1) Query the core id of a thread. Let’s start with the second question of the OP first: Is there a way in Julia to figure out which core a thread is running on? Thanks @pbayer for the pointer to schedule_getcpu(). We can call it in Julia like so: glibc_coreid() = @ccall sched_getcpu()::Cint and query the core id of a specific thread using ThreadPools’ @tspawnat: using ThreadPools tglibc_co…