problem with the system size

Problems running VASP: crashes, internal errors, "wrong" results.


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lymperakis
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problem with the system size

#1 Post by lymperakis » Sat Dec 30, 2006 11:43 am

Dear all
I am trying to run a relatively large calculation (appr. 500 Al atoms). I have reduced the k point sampling to 1x1x1 but still the calculation crashes. The last lines of the OUTCAR file are the following:

----------------------------------------------------------------
maximum number of plane-waves: 63603
maximal index in each direction:
IXMAX=234 IYMAX= 6 IZMAX= 9
IXMIN=*** IYMIN= -6 IZMIN= -9

NGX is ok and might be reduce to 938
NGY is ok and might be reduce to 26
NGZ is ok and might be reduce to 38
-------------------------------------------------------------------

The program stops without any further message.
Any help is welcome.
Thanx
Liverios
Last edited by lymperakis on Sat Dec 30, 2006 11:43 am, edited 1 time in total.

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problem with the system size

#2 Post by admin » Thu Jan 04, 2007 3:37 pm

just to check whether the crash is due to memory problems, please have a look whether the calculation runs with PREC=Low and/or if you use more parallel processors.
Last edited by admin on Thu Jan 04, 2007 3:37 pm, edited 1 time in total.

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