On Tue, Apr 09, 2013 at 09:57:12AM -0500, Pavan Balaji wrote:

Not when everything is dumped to the same output from mpiexec (e.g., stdout), since that'll require an arbitrary amount of buffering at mpiexec to do that. You could redirect the output to separate per-rank files. mpiexec -help should give you information on that.

Oh man how did I not know that? What is the correct '-outfile-pattern' to use? the -help doesn't tell you anything about the "pattern language" ==rob -- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA