[Pw_forum] serial run when parallel intended

Omololu Akin-Ojo prayerz.omo at gmail.com
Mon Apr 11 08:52:58 CEST 2011


I was aiming to run QE in parallel but I see the following message in
my output file; what am i doing wrong?

     Subspace diagonalization in iterative solution of the eigenvalue problem:
     a serial algorithm will be used

Why is QE using a serial algorithm? I am using openmpi and QE
recognizes the number of processors correctly:
     Parallel version (MPI), running on     8 processors
     R & G space division:  proc/pool =    8

I could give more info if needed.

Thanks in advance for any help.


Postdoctoral fellow,
CMSP section,
ICTP, Italy.

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