Re: [ET Trac] [Einstein Toolkit] #1476: Use mvapich2 instead of impi on Stampede

#1476: Use mvapich2 instead of impi on Stampede -----------------------+---------------------------------------------------- Reporter: eschnett | Owner: Type: defect | Status: new Priority: major | Milestone: ET_2013_11 Component: Other | Version: development version Resolution: | Keywords: -----------------------+----------------------------------------------------

Comment (by rhaas):

I found (in SpEC) that mvapich2 had issues with memory fragmentation that were not present in impi. So I'd not switch to mvapich2 as the default before the release without testing it with a full sized simulation.