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Subject: [OMPI users] ptmalloc2 problem with ICC 12.1 and OpenMPI 1.6.1
From: Roland Schulz (roland_at_[hidden])
Date: 2012-10-15 12:44:58


my application crashes with

when linked against OpenMPI 1.6.1 compiled with ICC 12.1 (20110811).

The problem disappears if I either use "--mca mpi_leave_pinned 0" or
if I link against OpenMPI 1.6.1 compiled with gcc or ICC 13.0. It
doesn't matter whether I compile with or without

The allocation which causes the problem is inside an OpenMP region.
The problem also disappears if I run with 1 OpenMP thread only.

All MPI communication is from OpenMP master (MPI_THREAD_FUNNELED).


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