[Pw_forum] question about vc-relax

[Bipul Rakshit]

Dear Pwscf users,
I have done the vc-relax calculation of ScSb. At the end of the file, I am
getting relaxed cell volume, CELL_PARAMETER AND relaxed atomic position and
pressure P= -0.32 kbar

If once again I put all the above parameters in the input file and do the
vc-relax calculation, then in first scf step I must get a pressure of -0.32
kbar.
But this is not the case. The pressure changes to some other value (-10.38
kbar).

So my question is why this happens? Why the pressure again increase or
decrease?

regards

-- 
Bipul Rakshit
PhD Student,
Barkatullah University,
Bhopal 462026,
MP, India
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