On Tue, 14 Jun 2011, William Hay wrote:
...
Assuming this is for local scratch space on Linux one thing I've been
considering is using almost the whole disk as swap and then mounting a
suitably sized tmpfs on $TMPDIR in the prolog
followed by a umount in the epilog. Have to be careful to ensure it
didn't cause real memory to be devoted to the VFS rather than
processes though.
...
Sounds smarter than the lvm/mkfs scheme I had been thinking of. However...
That's great for jobs that just need some fast local disk during the job,
but it's a problem for people wanting to use it for data to be picked up
after the job has finished (e.g. checkpoint files).
Perhaps it's less of a problem these days, if you've got a fast parallel
filesystem.
TTFN
Mark
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Mark Dixon Email : [email protected]
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