[QE-users] the number of k points in output file is different with that in input file

Pietro Davide Delugas pdelugas at sissa.it
Mon Sep 1 10:15:36 CEST 2025


In an nscf run, the mesh of k-points is symmetrised so that the k-point set has the same symmetry as the lattice.
Apart from the number of k-points increasing, this is usually a good, necessary feature.
You can avoid it either by setting  nosym=.true., or using calculation='bands' instead of nscf.
Pietro
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From: users <users-bounces at lists.quantum-espresso.org> on behalf of 半城烟沙 via users <users at lists.quantum-espresso.org>
Sent: Saturday, August 30, 2025 14:29
To: users <users at lists.quantum-espresso.org>
Subject: [QE-users] the number of k points in output file is different with that in input file

Dear,
I do the nscf calculation with the uniform k mesh. The k points is generated via kmesh.pl and the command is 'kmesh.pl 5 5 3'. And then the generated 75 k points is used to do nscf calculation. However, the number of k points in the output file is 99, which is different with that in input file. How can I avoid this condition?
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