[Pw_forum] restart from an interrupted phonon run

[Paolo Giannozzi]

On Wednesday 03 August 2005 14:40, Yong Jiang wrote:

> I notice that pw.x has a input tag of "restart_mode='restart'"
> which allows users to continue previous interrupted run. Is there
> a similar tag for ph.x, to restart an interrupted ph.x run?

ph.x should automatically restart from an interrupted run, if it
detects the presence of scratch files written by a previous run. 
This is by the way a source of trouble more often than not, so 
in the newer version you will have to explicitly specify that you 
want to restart from a previous run.

Note however that 
1) restarting is a mess, because files are often corrupted
2) in parallel execution, restarting is a mess multiplied by 1024:
  you need to run on the same number of processors, with the same
  number of 'pools', and each processor must see all files produced 
  by all other processors

Paolo

-- 
Paolo Giannozzi             e-mail:  giannozz at nest.sns.it
Scuola Normale Superiore    Phone:   +39/050-509876, Fax:-563513 
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