On Tue, Mar 27, 2007 at 09:28:53AM -0700, Greg Lindahl wrote: > On Mon, Mar 26, 2007 at 06:54:58PM -0400, Mark Hahn wrote: > > > or is this an example of message aggregation? > > The message aggregation number is said to be run with MVAPICH 0.9.9; > message aggregation is in that version, and can't be disabled.
To correct myself: there are 2 implementations of coalescing in MVAPICH floating around; one was checked into OFED and can't be disabled, but the one in MVAPICH mainline can be disabled with: VIADEV_USE_COALESCE=0 So, I encourage everyone to run with and without coalescing and report back as to whether your app gets any benefit or not. -- greg _______________________________________________ Beowulf mailing list, [EMAIL PROTECTED] To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf