[Q-e-developers] nb less than the number of proc

Paolo Giannozzi paolo.giannozzi at uniud.it
Tue Jun 11 18:38:20 CEST 2013


On Tue, 2013-06-11 at 17:47 +0200, xiaochuan Ge wrote:

> I wish this is the right place to ask this question.

it is

>      Error in routine  blk2cyc_redist (1):
>       nb less than the number of proc

this should happen only if you are using parallel
diagonalizaton: option -ndiag, without scalapack,
routine rdiaghg calling qe_pdsyevd, that calls
blk2cyc_redist. In this case, the number of 
processors cannot exceed the number of bands.
I don't think this has changed recently.

P.
-- 
 Paolo Giannozzi, Dept. Chemistry&Physics&Environment, 
 Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
 Phone +39-0432-558216, fax +39-0432-558222 




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