The super short answer is: 1.6.x is old and deprecated; can you upgrade to the 1.8.x series?
The short answer is "no" -- paffinity calls should never block, but it depends on how and what you're measuring. The more detailed answer is: your trace below looks like it includes a call to MPI_Abort. Did your process hang during the abort, perchance, and (somehow) get stuck in a process affinity call? Are you able to download and run the lstopo command from the hwloc suite? (http://www.open-mpi.org/software/hwloc/v1.9/) On May 30, 2014, at 2:47 PM, "Lecrenski, Stephen K PW" <stephen.lecren...@pw.utc.com> wrote: > I am running some performance tests (Open SpeedShop) with a program which > uses Open MPI and Infiniband. > > I see a line of code which appears to be taking a considerable amount of cpu > time in relation to other pieces of the code. > > opal_paffinity_base_get_physical_socket_id (libmpi.so.1.0.8: > paffinity_base_wrappers.c,118) > > Exclusive CPU time in seconds. > % of CPU Time > Statement Location (Line Number) > 19031.94 > 38.339796 > paffinity_base_wrappers.c(118) > 14188.66 > 28.583021 > paffinity_base_wrappers.c(113) > 10934.38 > 22.027282 > paffinity_base_wrappers.c(129) > 2185.16 > 4.401999 > paffinity_base_wrappers.c(121) > 1081.96 > 2.179606 > paffinity_base_wrappers.c(130) > 546.93 > 1.101789 > paffinity_base_wrappers.c(114) > 546.17 > 1.100258 > paffinity_base_wrappers.c(65) > 541.67 > 1.091193 > paffinity_base_wrappers.c(126) > 540.52 > 1.088876 > ompi_mpi_abort.c(80) > 2.23 > 0.004492 > ompi_mpi_abort.c(101) > > > Is this normal behavior? > > Thanks, > > Stephen Lecrenski > High Performance Technical Computing > > Pratt & Whitney > 400 Main Street > East Hartford,CT 06108 > Telephone: 860 - 557 - 2895 > Email: stephen.lecren...@pw.utc.com > P Please consider the environment before printing this e-mail > CONFIDENTIALITY WARNING: This email may contain privileged or confidential > information and is for the sole use of the intended recipients. Unauthorized > disclosure or use of this communication is prohibited. If you believe that > you have received this email in error, please notify the sender immediately > and delete it from your system. > > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2014/05/14915.php -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
