[Beowulf] Definition of HPC

Gregory Matthews greg.matthews at diamond.ac.uk
Fri Apr 19 08:28:04 PDT 2013


On 18/04/13 18:07, Hearns, John wrote:
> As an aside, a normal user can trigger a drop of the caches before the start of a job.
> If you have looked into it,  sudo echo 3 > /proc/sys/vm/drop_caches is well nigh impossible.

eh?
echo 3 | sudo tee /proc/sys/vm....

> But you can run an suid  C program which does effectively the same job.
>
>
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Greg Matthews        01235 778658
Scientific Computing Group Leader
Diamond Light Source Ltd. OXON UK

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