[Pw_forum] Possible problem with pw.x version 5.4.0 ? S matrix not positive

soumyajyoti haldar shaldar.mail at gmail.com
Tue Apr 26 12:54:38 CEST 2016


Hi,

I am getting an error "S matrix not positive definite" when I am trying to
do a nscf calculation for band structure of unit cell MoS2 after a
successful scf run. The same input file (both for scf and nscf ) ran
successfully with pw.x version 5.3.0

Attached is the input file for nscf calculation.

Regards

-- 
Soumyajyoti Haldar
Uppsala University
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