Dear Lorenzo,

Thanks for your quick response.  i tried this:

mpirun  pw.x -pd.true. < 1Tppp-mos2.scfeq.in > scfeq.out

and it worked perfectly fine.

Regards
________________________________
From: users <[email protected]> on behalf of Lorenzo 
Bastonero <[email protected]>
Sent: Wednesday, November 9, 2022 12:13 PM
To: Quantum ESPRESSO users Forum <[email protected]>
Subject: Re: [QE-users] The pencil decomposition option

Dear Elie,

You were almost there! Try adding literally what is suggested, i.e. “-pd .true.”

Best,
Lorenzo Bastonero

Inviato da iPhone

Il giorno 9 nov 2022, alle ore 15:08, Elio Physics <[email protected]> ha 
scritto:


Dear all,

I have been running some calculations on a supercomputer with some constraints 
on the number of processors I can run QE. I am faced with the error:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     Error in routine  fft_type_set (6):
  there are processes with no planes. Use pencil decomposition (-pd .true.)
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

How do I tell the code to use the pencil decomposition? I have tried adding -pd 
to the 'mpirun' an adding use_pd=.true. in the PW inout but in vain.

Thanks in advance

Elie Moujaes
Adjunct professor
Federal University of Rondonia
Brazil.



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_______________________________________________
The Quantum ESPRESSO community stands by the Ukrainian
people and expresses its concerns about the devastating
effects that the Russian military offensive has on their
country and on the free and peaceful scientific, cultural,
and economic cooperation amongst peoples
_______________________________________________
Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
users mailing list [email protected]
https://lists.quantum-espresso.org/mailman/listinfo/users

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