On Thu, Feb 23, 2012 at 18:53, Nystrom, William D <wdn at lanl.gov> wrote:

> Rerunning the CPU case with numactl results in a 25x speedup and
> log_summary
> results that look reasonable to me now.
>

What command are you using for this? We usually use the affinity options to
mpiexec instead of using numactl/taskset manually. Did you also set a
specific memory policy? Which Linux kernel is this?
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