Hi DK, I just though you would like to know that I have now tested the Pallas benchmark on a two node SGI Altix 1330 cluster using OpenIB and mvapich-gen2. Each node had 16 CPU's. To do this I had to change SMPI_MAX_NUMLOCALNODES to be defined as 16 instead of the normal 4 for the test. I ran a 2x16 (32 total) CPU Pallas benchmark several times with no hang ups or errors.
I'm wondering if there would be any more changes I would need to make for scaling to much larger systems. I do plan at some point in the near future to test this on a much larger system with a LOT more CPU's The test was conducted using a "kernel.org" 2.6.14 kernel and an OpenIB svn gen2 release of 3926 using Voltaire HCA's and switch We will be demonstrating OpenIB and mvapich-gen2 mpi at Supercomputing 05 (running smaller jobs though because the 32 way jobs take so long to complete). We will also demo rdma_lat, rdma_bw and IpoIB. I can send you the pallas results if you are interested. Regards John -- John Partridge Silicon Graphics Inc Tel: 651-683-3428 Vnet: 233-3428 E-Mail: [EMAIL PROTECTED] _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
