[Pw_forum] PW.x : restart of mpi jobs with disk_io='high' broken?

Alexander Shaposhnikov shaposh at isp.nsc.ru
Mon Dec 19 08:16:17 CET 2005


No, cannot restart with disk_io='high' in any case.
Can anybody confirm this?
Is there any real use for disk_io='high' performance-wise (for large
jobs and high-speed io)?

Regards,
Alex

On Fri, 2005-12-16 at 11:35 -0800, Konstantin Kudin wrote:
>  Please report if you can restart with the following options:
> 
>  startingpot='file'
>  startingwfc='atomic'
> 
>  Kostya
> 
> --- Alexander Shaposhnikov <shaposh at isp.nsc.ru> wrote:
> 
> > Hello. Sorry again for the silly posts about relaxation:)
> > 
> > What i have found :
> > Restart of mpi jobs with NCPU>1 and  disk_io set to 'high' 
> > seems to be broken. It hangs with the last message "Starting wfc from
> > file". 'normal' or 'low' have no problem, as well as 'high' on just
> > one
> > CPU.
> > 
> > Regards,
> > Alex
> > 
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