The ABINIT Users Mailing List ( CLOSED )

["Gavin Beatty" <gavinbeatty@gmail.com>]

On Dec 15, 2007 8:54 AM, ธนูสิทธิ์ บุรินทร์ประโคน <thanusit@kku.ac.th> wrote:
> Dear Gavin
>
> The log file suggests you need at least 2 Gb of Ram, and  please try
> setting "mkmem 0" in the input files. It might help.
>
> Regards,
> Thanusit Burinprakhon

Dear Thanusit Burinprakhon,

Thanks so very much for your reply. "mkmem 0" works for me.

Problem solved.


Very grateful,
Gavin


> > On December 15, 2007 5:14:11 AM ICT, "Gavin Beatty"
>
> <gavinbeatty@gmail.com> wrote:
> >
> > Hello,
> >
> > I have a question about abinit's memory needs. Below is an excerpt
> > from the log. Abinit requires ~1850 Mb of space and I have more than
> > enough disc space for this.
> >
> > So, why the error? Does abinit require more swap space or more RAM? I
> > cannot find any more info about how memana works and I can't read
> > fortran :P I'd be grateful for any help.
> >
> > Thank you,
> > Gavin
> >
> >
> > [snip]
> >  memory : analysis of memory needs
> >
> ================================================================================
> >  Values of the parameters that define the memory need for DATASET  2.
> >    intxc =         0  ionmov =         0    iscf =        -3     ixc =
>         1
> >   lmnmax =         2   lnmax =         2   mband =        35  mffmem =
>         1
> > P  mgfft =        72   mkmem =      4000 mpssoang=         3     mpw =
>       872
> >   mqgrid =      3001   natom =        10    nfft =     62208    nkpt =
>      4000
> >   nloalg =         4  nspden =         1 nspinor =         1  nsppol =
>         1
> >     nsym =         1  n1xccc =      2501  ntypat =         3  occopt =
>         1
> >
> ================================================================================
> > P This job should need less than                    1959.350 Mbytes of
> memory.
> >   Rough estimation (10% accuracy) of disk space for files :
> >   WF disk file :   1862.795 Mbytes ; DEN or POT disk file :      0.477
> Mbytes.
> >
> ================================================================================
> >
> >  Biggest array : cg(disk), with   1862.7950 MBytes.
> >
> >  memana : ERROR -
> >   Test failed to allocate an array of   1862.795 Mbytes
> >   It is not worth to continue
> >   Action : modify input variable to fit the available memory,
> >   or increase limit on maximal array size.
> >
> >  leave_new : decision taken to exit ...
> >
> >
> > --
> > http://www.mathsoc.com
>



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