[Pw_forum] questions on wf_collect

Paolo Giannozzi giannozz at nest.sns.it
Thu May 11 17:09:23 CEST 2006


On Thursday 11 May 2006 15:55, Xunlei Ding wrote:

> [...] I prefer to use, say 4 CPU for the "relax" calculations, 2 for the
> scf and 1 for the PP calculations. To read the wavefile of the previous
> calculation, wf_collect= .true. should be set  for all these calculations.

wf_collect should be set when writing wavefunctions; the code should
be able to recognize the correct format when reading

> Another question is, what is the short-coming for setting 
> wf_collect=.true. , since wf_collect= .false. is the default 
> setting?

more disk usage, communications, I/O 

Paolo
-- 
Paolo Giannozzi             e-mail:  giannozz at nest.sns.it
Scuola Normale Superiore    Phone:   +39/050-509876, Fax:-563513 
Piazza dei Cavalieri 7      I-56126 Pisa, Italy



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