[Pw_forum] error in gamma

Paolo Giannozzi giannozz at democritos.it
Thu Jun 10 17:50:41 CEST 2010

ali kazempour wrote:

> I didn't say that when I use 1 node each have 32 cores ,
> I don't have any problem with run of pw1.in and pw2.in with 
> nbnd=1024. But once I increase  the number of proccessors to 
> 32 node each have 32 core this error happen.

...and what should one deduce from such obscure statements?
The important pieces of information here are:
- total number of MPI processes
- number of processors in the "linear-algebra" group, as
   specified by the -ndiag or -northo keyword. This is a square
   integer, and should be set to whatever gives the fastest
   diagonalization time, not to the maximum number

Paolo Giannozzi, Democritos and University of Udine, Italy

More information about the users mailing list