johnh
April 4, 2021, 3:45am
1
Definitely worth reading if you are interested in finding detail on the CPU or GPU system you are working with.
March 2020: I was planning to write about CPU microarchitecture analysis for a long time. I started writing this post more than a year ago, just before the beginning of COVID-19. But with so many things happening around (and new parenting...
Est. reading time: 42 minutes
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For those who are interested in using LIKWID with Julia.
Setting LIKWID markers:
Using likwid-pin for Julia threads:
Alright, I’ve done some testing and had some discussion on Slack/GitHub. Let me share my findings.
@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…
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