[gmx-users] mpirun SIGSEGV error on dual xeon

[Y. U. Sasidhar]

I see this error on our dual xeon 1.8 GHz, RH 8.0 ( OS sees 4 cpus ).
We compile tpr file for 4 nodes and use lam from gromacs web site. gmx 3.1.4.
We are using PME. gmx installed from rpms.
We are doing a MD of a 13 residue peptide in spc water.
1. WE compile for 4 nodes; mpirun stops at various stages before ~ 10,000 steps
no error messages !
2. WE compile for 2 nodes and this is what we are getting.
commands used: mpirun -np 4 mdrun_mpi... etc
 From archives I got an impression that PME may be the reason.
We have not yet tried with shift and GR.
We would like to continue with PME.

===================================================
step 159090, will finish at Thu Jul 10 12:19:18 2003
step 159100, will finish at Thu Jul 10 12:19:19 2003
step 159110, will finish at Thu Jul 10 12:19:20 2003
step 159120, will finish at Thu Jul 10 12:19:21 2003
step 159130, will finish at Thu Jul 10 12:19:22 2003
MPI process rank 1 (n0, p8340) caught a SIGSEGV.
-----------------------------------------------------------------------------

One of the processes started by mpirun has exited with a nonzero exit
code.  This typically indicates that the process finished in error.
If your process did not finish in error, be sure to include a "return
0" or "exit(0)" in your C code before exiting the application.

PID 8340 failed on node n0 with exit status 1.

-- 
 Sasidhar