------- Comment #6 from jakub at gcc dot gnu dot org 2010-04-20 10:49 -------
Created an attachment (id=20441)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20441&action=view)
gcc46-pr43706.patch
For GOMP_CPU_AFFINITY there was an issue that the number of available CPUs used
to decide whether the number of managed threads is bigger than available CPUs
didn't take into account GOMP_CPU_AFFINITY restriction. The attached patch
does that. That said, for cases where some CPU is available for the GOMP
program, yet is constantly busy doing other things (say higher priority), this
can't help and OMP_WAIT_POLICY=passive or GOMP_SPINCOUNT=1000 or some similar
small number is your only option.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43706
