The ABINIT Users Mailing List ( CLOSED )

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

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 ...


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