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Subject: Re: [OMPI users] Segfaults w/ both 1.4 and 1.5 on CentOS 6.2/SGE
From: Joshua Baker-LePain (jlb17_at_[hidden])
Date: 2012-03-13 15:35:57

On Tue, 13 Mar 2012 at 7:20pm, Gutierrez, Samuel K wrote

> Just to be clear, what specific version of Open MPI produced the
> provided backtrace? This smells like a missing memory barrier problem.

The backtrace in my original post was from 1.5.4 -- I took the 1.5.4
source and put it into the 1.5.3 SRPM provided by Red Hat. Below is a
backtrace from 1.4.3 as shipped by RH/CentOS:

#0 sm_fifo_read () at btl_sm.h:267
#1 mca_btl_sm_component_progress () at btl_sm_component.c:391
#2 0x0000003e54a129ca in opal_progress () at runtime/opal_progress.c:207
#3 0x00002b00fa6bb8d5 in barrier () at grpcomm_bad_module.c:270
#4 0x0000003e55e37d04 in ompi_mpi_init (argc=<value optimized out>,
     argv=<value optimized out>, requested=<value optimized out>,
     provided=<value optimized out>) at runtime/ompi_mpi_init.c:722
#5 0x0000003e55e5bae0 in PMPI_Init (argc=0x7fff8588b1cc, argv=0x7fff8588b1c0)
     at pinit.c:80
#6 0x0000000000400826 in main (argc=1, argv=0x7fff8588b2c8)
     at mpihello-long.c:11


Joshua Baker-LePain
QB3 Shared Cluster Sysadmin