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Subject: Re: [OMPI users] ptmalloc2 problem with ICC 12.1 and OpenMPI 1.6.1
From: tmishima_at_[hidden]
Date: 2012-10-21 05:22:30


Hi Roland,

this is a typical behavior of TSD_DATA_HACK problem I pointed out.

Please see my previous post entitled "-DUSE_TSD_DATA_HACK problem
in openmpi's ptmalloc2".

The problem will be fixed in the future release.

> Hi,
>
> my application crashes with
> /shared/openmpi-1.6.1/intel/lib/libmpi.so.1
(opal_memory_ptmalloc2_int_malloc+0x4b3)[0x7fbef40e1413]
> /shared/openmpi-1.6.1/intel/lib/libmpi.so.1
(opal_memory_ptmalloc2_int_memalign+0x8b)[0x7fbef40e494b]
> /shared/openmpi-1.6.1/intel/lib/libmpi.so.1
(opal_memory_ptmalloc2_memalign+0x70)[0x7fbef40e4500]
> /shared/openmpi-1.6.1/intel/lib/libmpi.so.1(+0x252486)[0x7fbef40e4486]
> /lib64/libc.so.6(posix_memalign+0x5e)[0x348547a18e]
>
> 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
> --enable-mpi-thread-multiple.
>
> 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).
>
> Roland
>
> --
> ORNL/UT Center for Molecular Biophysics cmb.ornl.gov
> 865-241-1537, ORNL PO BOX 2008 MS6309
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