[Pw_forum] Sementation fault error with ph.x

Paolo Giannozzi giannozz at nest.sns.it
Tue Dec 14 11:06:56 CET 2004

On Tuesday 14 December 2004 03:48, Hong, SamPyo wrote:

> I am trying to calculate the G-point frequencies of N/Cu(100) 
> system. However, I am experiencing the segmentation fault 
> error in the very beginning of running of ph.x.

unless it is a compiler bug (unlikely on IBM), it might be an
out-of-memory error. If you are using ultrasoft PP's with version 
2.1 or previous, try the most recent version (2.1.1): it uses much
less memory


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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