Alex Birch on Wed, 10 Sep 2003 12:20:20 -0400

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Re: [PLUG] diskless linux

> At any rate, many people run swapless systems without a problem. Swap is
> only really useful for swapping out idle programs. Its been a while
> since I managed a cluster, but ideally a cluster node should be running
> a single job at a time (and maybe a small monitoring daemon). Right?
What happens when a person is using huge flat database files? Would swap
be good for that? I guessed that Juno was going to use his cluster for
bioinformatics and he might create a "biowulf" cluster. With MPI blast,
even small amounts of memory matter. A computer that only had 1.5 GB of
memory would take 3 times as long as the computers with 2.0. With a
diskless node and a fast ethernet connection, it should be worse.
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