[mpich-discuss] MPICH with PGI compilers (Assertion failed in helper_fns.c)

[Sarat Sreepathi]

Hello:

We recently installed new PGI compilers(10.2-1 64-bit) and built
MPICH(1.2.1p1) with the new compilers on our Opteron cluster. Initial
tests revealed no problems.

But when I built and ran a parallel program today, it crashed with an
assertion failure in the MPI source. (src/mpi/coll/helper_fns.c)*:
memcpy argument memory ranges overlap
*The detailed error and configuration details are enclosed below.

I found a recent changeset that's related to this:
http://trac.mcs.anl.gov/projects/mpich2/changeset/6344#file2* *
Your help is greatly appreciated in resolving the issue.

Thanks,
Sarat.

$> mpirun -n 1 ./epanetmsx input0.txt output0.txt
*Assertion failed in file helper_fns.c at line 337: 0*
*memcpy argument memory ranges overlap, dst_=0x633440 src_=0x633440 len_=16*

internal ABORT - process 0
rank 0 in job 33695  master_4268   caused collective abort of all ranks
  exit status of rank 0: return code 1

*Excerpt from **src/mpi/coll/helper_fns.c*
333     if (sendtype_iscontig && recvtype_iscontig)
334     {
335         MPIU_Memcpy(((char *) recvbuf + recvtype_true_lb),
336                ((char *) sendbuf + sendtype_true_lb),
337                copy_sz);
338     }

The cluster is running an older OS: SuSE 10.
*$ uname -a*
Linux master 2.6.14-ck5-suse10-osmp #55 SMP Tue Jan 3 13:19:36 EST 2006
x86_64 x86_64 x86_64 GNU/Linux

*>$ mpich2version *
*MPICH2 Version:        1.2.1p1*
MPICH2 Release date:    Unknown, built on Sun Mar  7 21:16:25 EST 2010
*MPICH2 Device:        ch3:nemesis*
MPICH2 configure:     --prefix=/usr/local/mpich2-1.2.1 --enable-f77
--enable-f90 --enable-cxx
MPICH2 CC:     pgcc  -O2
MPICH2 CXX:     pgCC  -O2
MPICH2 F77:     pgf77
MPICH2 F90:     pgf90

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Sarat Sreepathi
Doctoral Student
Dept. of Computer Science
North Carolina State University
sarat_s at ncsu.edu ~ (919)645-7775
http://www.sarats.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/mpich-discuss/attachments/20100324/0e18272d/attachment.htm>