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doku:gpaw [2014/08/27 11:26] – jzdoku:gpaw [2014/08/27 11:27] (current) – jz
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 If even more memory per process is required the environments ''mpich4'', ''mpich2'', and ''mpich1'' are also available, as discussed in [[doku:ompmpi|Hybrid OpenMP/MPI jobs]]. If even more memory per process is required the environments ''mpich4'', ''mpich2'', and ''mpich1'' are also available, as discussed in [[doku:ompmpi|Hybrid OpenMP/MPI jobs]].
-Alternatively, you can simply start your GPAW job with more processes which will also reduce the amount of memory per processes needed. GPAW usually scales well with the number of processes.+Alternatively, you can simply start your GPAW job with more processes which will reduce the amount of memory per process. GPAW usually scales well with the number of processes.
  
 Significant speed up is seen **in our test case** when --sl_default is set. First two parameters for the BLACS grid should be similar in size to get an optimal memory distribution on the nodes.  Significant speed up is seen **in our test case** when --sl_default is set. First two parameters for the BLACS grid should be similar in size to get an optimal memory distribution on the nodes. 
  • doku/gpaw.1409138801.txt.gz
  • Last modified: 2014/08/27 11:26
  • by jz