Matthew Knepley <[email protected]> writes: > On Wed, Apr 5, 2017 at 12:23 PM, Justin Chang <[email protected]> wrote: > >> I simply ran these KNL simulations in flat mode with the following options: >> >> srun -n 64 -c 4 --cpu_bind=cores numactl -p 1 ./ex48 .... >> >> Basically I told it that MCDRAM usage in NUMA domain 1 is preferred. I >> followed the last example: http://www.nersc.gov/users/ >> computational-systems/cori/configuration/knl-processor-modes/ >> > > Right. I think, from the prior discussion, that -m 1 causes the run to fail > if you spill out of MCDRAM. I think that is usually > what we want since it makes things easier to interpret and running MKL from > DRAM is like towing your McLaren with > your Toyota.
I'm not sure whether getting the Intel acronyms mixed up (KNL vs MKL) makes the quote above better or worse.
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