[QE-users] Request for solution in q4 of phonon

Sagar Dahal sagardahal at celebrationcoed.edu.np
Sat Jan 3 05:22:50 CET 2026


Dear all,
I had used ph.x using Quantum Espresso for phonon calculation. Dyn1 to Dyn3
is ok as I had given it in parallelization format. But dyn4 is getting
CRASH for the second time again. How can I sort out the issues?

Problem:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     Error in routine set_irr_sym_new (722):
     wrong representation

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     task #        56      from set_irr_sym_new : error #       722
 wrong representation
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Please let me know, what should i do?
-Sagar Dahal
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