Brian wrote:
Attached is a simple test program with two threads. When the threads run ,
one displays '+' and the other displays '2'.
If both threads run on the same core , the threads work , but if the threads
are set to different cores , it generates a GP fault.
If anyone is interested , download the code . It was tested on Ubuntu
12.04lts , but should be portable .
Would be interested hear any results to confirm it is not a hardware issue
on this PC.
coret.pas
<http://free-pascal-general.1045716.n5.nabble.com/file/n5717544/coret.pas>
test_threads.pas
<http://free-pascal-general.1045716.n5.nabble.com/file/n5717544/test_threads.pas>
The only x86 systems conveniently to hand are multi-CPU rather than
multi-core, but I'll happily test that provided you can make it into a
standalone program. As it stands coret.pas requires non-standard units,
and test_threads.pas isn't standalone.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
_______________________________________________
fpc-pascal maillist - fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-pascal
