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[Bug libgomp/58642] gomp regression: not "honoring" anymore task set and numactl


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58642

--- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Oct  7 11:39:39 2013
New Revision: 203243

URL: http://gcc.gnu.org/viewcvs?rev=203243&root=gcc&view=rev
Log:
    PR libgomp/58642
    * config/linux/proc.c: Include errno.h.
    (gomp_get_cpuset_size): New variable.
    (gomp_cpuset_popcount): Add cpusetsize argument, use it instead of
    gomp_cpuset_size.
    (gomp_init_num_threads): If CPU_ALLOC_SIZE is defined and
    pthread_getaffinity_np returned EINVAL, increase gomp_cpuset_size
    and retry.  After successful pthread_getaffinity_np copy
    gomp_cpuset_size to gomp_get_cpuset_size and try to find out
    minimum gomp_cpuset_size that covers all the CPUs set in gomp_cpusetp.
    (get_num_procs): Pass gomp_get_cpuset_size rather than gomp_cpuset_size
    to pthread_getaffinity_np, adjust gomp_cpuset_popcount caller.
    * config/linux/proc.h (gomp_cpuset_popcount): Add cpusetsize argument.
    * config/linux/affinity.c (gomp_affinity_finalize_place_list,
    gomp_affinity_init_level): Adjust gomp_cpuset_popcount callers.
    * testsuite/libgomp.c/affinity-1.c (pthread_getaffinity_np): Set
    contig_cpucount from the first successful pthread_getaffinity_np
    call, rather than just first call.

Modified:
    branches/gomp-4_0-branch/libgomp/ChangeLog.gomp
    branches/gomp-4_0-branch/libgomp/config/linux/affinity.c
    branches/gomp-4_0-branch/libgomp/config/linux/proc.c
    branches/gomp-4_0-branch/libgomp/config/linux/proc.h
    branches/gomp-4_0-branch/libgomp/testsuite/libgomp.c/affinity-1.c


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