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convergence test

From: "waigen zhang" <waigen.zhang@gmail.com>
To: forum <forum@abinit.org>
Subject: convergence test
Date: Thu, 4 Oct 2007 00:38:48 -0400
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Dear all,
I am not sure if this problem asked by somebody else or ...
As far as I know, ecut and kpoint convergence test is needed before any physical calculation. How about if we keep changing the pressure (volume)? Say if pressure=0 GPa. ecut=20,ngkpt=4X4X4 is enough. How about when pressure=100 GPa (say volume is 50% of zere pressure volume)? Should we
double check the ecut and ngkpt before any calculation?
If we need to check the convergence when volume changes(beyond the ecutsm effect),is there any good way to do that?
Regards,
WG.ZHANG

convergence test, waigen zhang, 10/04/2007
- Re: [abinit-forum] convergence test, Chao Cao, 10/04/2007
  - Re: [abinit-forum] convergence test, Anglade Pierre-Matthieu, 10/04/2007
- Re: [abinit-forum] convergence test, Xavier Gonze, 10/04/2007