On 10/12/2010 04:19 PM, kishor kharbas wrote: > Will the "Debug event logging" feature of MPICH2 help in tracking > down this? Unlikely, but you can try. It's possible that the network is flaky, and fails sometimes. "dmesg" might tell if you if it's going down occasionally. -- Pavan -- Pavan Balaji http://www.mcs.anl.gov/~balaji