[fpc-pascal] Re: GetAffinity\SetAffinity

[Brian]

"... The critical sections you are using only protect each thread against
itself, meaning they basically do nothing. Being inside a critical
section is not a guarantee that you won't get preempted, but just that
no other threads can enter the same section. ..."

The two threads do not share and variables and do not interact with one
another. The question is ... as Mark has previously pointed out ... does
Linux x86 allow setting hard affinity with threads where the program
(process) runs on one CPU core and one or more threads run on another core? 

It looks like all the threads must run on the same core as the block diagram
at this link seems to imply.
https://computing.llnl.gov/linux/slurm/mc_support.html

Mark : I found that sometimes coret_fail would run several times correctly ,
and then when launched on launch N+1 would fail. It may just be luck of the
draw that everything was running on one core when it ran correctly.



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