Issue due to number of pools between nscf and epw

[anindya@iiita]

Dear Experts,
Is it mandatory that I should use same number of processor/pool in case of nscf ,phonon and epw calculation.If they are different, will it cause an incorrect result in epw.out.Please let me know.

Thanks and regards,
Anindya Bose

[carla.verdi]

Hi Anindya,

The phonon calculation can be run with any number of cpus and pools you'd like, EPW will only read the saved files which are invariant.

Carla

[anindya@iiita]

Dear Carla,
Should I make the nscf and epw in same number processor/pool or I can generate generate nscf data by simply choosing mpirun -np number and for epw mpirun -np number -npool.Is it ok?

Thanks and regards,
Anindya Bose

[carla.verdi]

Hi Anindya,

You need the same number of processors and pools between the nscf and epw calculation.

Carla