Hello all.
While performing a phonon calculation on a monolayer of C I got the
following error:
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task # 1
from set_irr : error # 0
npert > max_irr_dim
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Searching the pw_forum archive, the solution seems to be to recompile
the code using a bigger value for max_irr_dim parameter.
But.... from the archive:"The parameter defines maximum allowed number
of degeneracy of modes"
Could somebody tell me what does this mean?
By the way, I have made exactly the same calculation (all the parameters
being identical and with the same list of q vectors) but changing
ecutwfc from 35 ryd to 32. In this case there was no error.
Am I going beyond any kind of limit?
thank a lot