[Pw_forum] QE_Parallel

Gul Rahman gulrahman at qau.edu.pk
Mon Apr 13 09:03:31 CEST 2015

Dear All,
As I mentioned in my previous e-mail that my QE is very slow when I run it
in parallel.
I have no problem on the same machine if I use some other code, e.g.,
I probably missing something in my compilation of QE. Please, have a look
into the attached sys.make file that I used to compile QE.
Also, if some one can share the parallel sys.make file.
After the compilation, I just use
mpirun -np 32 --hostfile machines ./mpi_script.sh
 where mpi_script.sh file just contain the command for pw.x (./pw.x <
myfile.scf.in >OUT)


Dr. Gul Rahman
Assistant Professor,
Department of Physics,
Quaid-i-Azam University,
Islamabad, Pakistan
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