Dear all,
    I encountered a problem when I was running the EPW code by using USPP: If only ecutwfc was defined or ecutwfc and ecutrho were both defined (ecutrho is small) in SCF and NSCF, and then the EPW ran well; however, the EPW would always keep at follow status and couldnt run to next step if ecutrho was large (e.g. 240 Ry for my computer). I dont know why and can you give me some suggestions? 
The epw.out:
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http://www.quantum-espresso.org/quote
Parallel version (MPI), running on    28 processors
MPI processes distributed on     1 nodes
K-points division:     npool     =      28
Reading data from directory:
./graphene.save/
IMPORTANT: XC functional enforced from input :
Exchange-correlation      = PBE ( 1  4  3  4 0 0)
Any further DFT definition will be discarded
Please, verify this is what you really want
          file C.pbe-mt_fhi.UPF: wavefunction(s)  4f renormalized
G-vector sticks info
--------------------
sticks:   dense  smooth     PW     G-vecs:    dense   smooth      PW
Sum        1189    1189    397               202311   202311   39267
			
			
									
						
										
						A problem when ecutrho was used
Moderator: stiwari
Re: A problem when ecutrho was used
Dear jyxi,
I had the same problem, please look here: http://epwforum.uk/viewtopic.php?f=6&t=447
As far as I know, EPW still only supports norm-conserving pseudo potentials.
Best, Tobias
			
			
									
						
							I had the same problem, please look here: http://epwforum.uk/viewtopic.php?f=6&t=447
As far as I know, EPW still only supports norm-conserving pseudo potentials.
Best, Tobias
Materials Theory group at ETH Zurich
			
						Re: A problem when ecutrho was used
Hello both, 
We have been working on EPW support for USPP.
It should now be working in the GitLab development version. Let us know if it works for you.
Best wishes,
Samuel
			
			
									
						
							We have been working on EPW support for USPP.
It should now be working in the GitLab development version. Let us know if it works for you.
Best wishes,
Samuel
Prof. Samuel Poncé  
Chercheur qualifié F.R.S.-FNRS / Professeur UCLouvain
Institute of Condensed Matter and Nanosciences
UCLouvain, Belgium
Web: https://www.samuelponce.com
			
						Chercheur qualifié F.R.S.-FNRS / Professeur UCLouvain
Institute of Condensed Matter and Nanosciences
UCLouvain, Belgium
Web: https://www.samuelponce.com