Re: [bgl-discuss] Blue Gene slow I/O

[Ray Loy <rloy@xxxxxxxxxxx>]

> waris wrote:
>  The case we currently run
> is out of user homedir.


Waris has been writing to NFS so they're saturating the server.  We've
suggested using PVFS instead, which he is testing out now I believe.



> The read/write performance looks pathologically slow at around 20-30 times
> slower when compared to normal runs.


waris, is that comparison to workstations with local /tmp disks ?



ray


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