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Subject: [OMPI devel] Open MPI 1.6.5 opal_paffinity_base_get_physical_socket_id
From: Lecrenski, Stephen K PW (Stephen.Lecrenski_at_[hidden])
Date: 2014-05-30 14:47:53


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.Lecrenski_at_[hidden]<mailto:dwayne.hanlan_at_[hidden]>
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