[Pw_forum] Fwd: Mixed MPI-OpenMP
Paolo Giannozzi
giannozz at democritos.it
Fri Jul 24 18:57:08 CEST 2009
Eduardo Ariel Menendez Proupin wrote:
> 1) How should one compile and run? I could not find it on the manual.
because it is not (yet) there: the mixed mpi-openmp parallelization
is still for the brave. If you feel brave:
DFLAGS=...-D__OPENMP _D__FFTW (or -D__ESSL if you have an IBM
machine with ESSL and AIX, -D__ESSL_LINUX with ESSL and Linux)
compilation flags for openmp (-openmp for ifort)
openMP-aware libraries (essl, mkl, acml I think)
OMP_NUM_THREADS set to the number of desired processes in the
script that submits the job
Paolo
--
Paolo Giannozzi, Democritos and University of Udine, Italy
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