[Pw_forum] Off-topic: parallel compilation

Filippo Spiga spiga.filippo at gmail.com
Wed May 21 02:39:29 CEST 2014


Dear Marcos,

On May 18, 2014, at 3:10 PM, Marcos Veríssimo Alves <marcos.verissimo.alves at gmail.com> wrote:
> Mpich 2 is compiled using gcc/ifort. 

If you compile by yourself MPICH2 locally I suggest to use CC=icc and FC=ifort, do not mix compilers. Most of the time the mixing is harmless but I would not bet money that it is _always_ harmless. Moreover MPICH2 is old, try Open MPI instead (http://www.open-mpi.org/)


>  Is it possible to compile QE in parallel mode using only OpenMP and MKL?

Yes, it is called serial compilation :-)

./configure --enable-openmp --disable-parallel

Regards,
Filippo

--
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

*****
Disclaimer: "Please note this message and any attachments are CONFIDENTIAL and may be privileged or otherwise protected from disclosure. The contents are not to be disclosed to anyone other than the addressee. Unauthorized recipients are requested to preserve this confidentiality and to advise the sender immediately of any error in transmission."






More information about the users mailing list