[Beowulf] Checkpointing using flash

[Justin YUAN SHI]

It looks fairly accurate.

This is because reconcile distributed checkpoints is theoretically
difficult. Therefore, frequent checkpointing is cost prohibitive for
exacscale apps.

Justin

On Fri, Sep 21, 2012 at 10:49 AM, Hearns, John <john.hearns at mclaren.com> wrote:
> http://www.theregister.co.uk/2012/09/21/emc_abba/
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> Frequent checkpointing will of course be vital for exascale, given the MTBF
> of individual nodes.
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> However how accurate is this statement:
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> HPC jobs involving half a million compute cores ... have a series of
> checkpoints set up in their code with the entire memory state stored at each
> checkpoint in a storage node.
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> John Hearns | CFD Hardware Specialist | McLaren Racing Limited
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