[Pw_forum] problem with phonon calculation

Paolo Giannozzi giannozz at democritos.it
Wed Nov 19 11:12:41 CET 2008

Arun Kumar Manna wrote:

>      Computing Pc [DH,Drho] |psi>
> ...]
>      from cdiaghg : error #       176
>      info =/= 0

this is unfortunately one of the worst cases to fix: an error inside
a lapack routine, with no obvious reason (I assume that your system
is ok: otherwise some error would have shown up much earlier). Are
you running in parallel or serially? and what libraries are you using?
sometimes machine-optimized libraries are very fast but not so reliable.

Paolo Giannozzi, Democritos and University of Udine, Italy

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