[Pw_forum] Memory distribution problem

Filippo Spiga spiga.filippo at gmail.com
Fri Feb 28 02:18:56 CET 2014

Dear Peng,

On Feb 27, 2014, at 11:09 PM, Peng Chen <pchen229 at illinois.edu> wrote:
> there is a hard limit on memory (2G per core).

is this because the amount of memory divided by number of cores is exactly 2Gbyte (per core)?

If memory is your big concern try to run Quantum ESPRESSO disabling MPI and enabling OpenMP. If you are using GNU compilers (GCC/GFORTAN), I do suggest or to get a multi-threaded BLAS like OpenBLAS (http://www.openblas.net/) or to install the academic non commercial version of the Intel compiler suite.


Mr. Filippo SPIGA, M.Sc.
http://www.linkedin.com/in/filippospiga ~ skype: filippo.spiga

«Nobody will drive us out of Cantor's paradise.» ~ David Hilbert

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