Re: [OMPI devel] kernel 2.6.23 vs 2.6.24 - communication/wait times

[Eugene Loh]

Bogdan Costescu wrote: On Sat, Apr 10, 2010 at 5:51 AM, Eugene Loh <eugene....@oracle.com> wrote: Why is shared-memory performance about four orders of magnitude slower than it should be? Have there been any process scheduler changes in the newer kernels ? I'm not sure that they could explain four orders of magnitude differences though... Plus, the TCP numbers seem okay.  So, it doesn't feel like that or process-binding issues.