I just performed another test, slightly different code (167Mb per
process) running on 16 CPUs.
Speed-up on this code is 96% on the X1. Communication and computation
overlap.
This means that the G5, for my code as configured, is 1/3rd as fast as
the Cray X1.
Sean
On Sep 10, 2004, at 12:43 PM, Lidie Steve wrote:
Aside from the 2-processor job, not much difference between using 1
processor per node or using 2. I suspect that its getting low on
memory for the 1-node, 2-CPU job. Each process is roughly 350Mb and
the node has 1GB shared between both processors.
Do you have comparison numbers on other non-G5 clusters to share?
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