[QE-users] Target and calculated pressures

Mpayami mpayami at aeoi.org.ir
Sun Jan 21 11:05:33 CET 2024


Dear Dr. Tarek Hammad

Hi.
According to your report, the result is correct.
The early pressures are different from the target one because the lattice constants are not appropriate to the target pressure. So they vary until the last step to match the target pressure.
 

Bests,

Mahmoud Payami
NSTRI, AEOI
Tehran, Iran
Email: mpayami at aeoi.org.ir
Phone: +98(0)2182066504
------------------------------------


----- Original Message -----
From: Tarek Hammad (Hammad_Tarek at hotmail.com)
Date: 01/11/1402 11:19
To: Quantum ESPRESSO users Forum (users at lists.quantum-espresso.org)
Subject: [QE-users] Target and calculated pressures

Dear team and users of QE

please, would you clarify the following situation for me:

I am running qe+thermo_pw to calculate elastic_constants for  simple orthorhombic compound under some target pressure.

The problem is when checking the output file I can see the pressure in each cycle is fairly different than than the target pressure 

until the last cycle!!!!!.

I so much need your opinion.

Thanks a lot in advance

Kind regards

Dr. Tarek Hammad.

 


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