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ELPA OpenMP/MPI
Date: 2017/06/19 18:10
Name: Pui-Wai (Leo) Ma   <leo.ma@ukaea.uk>

Dear Prof. Ozaki,

I have a question regarding the ELPA Eigen solver.

Does the version of ELPA being incorporated in OpenMX support MPI/OpenMP hybrid?

If I compiled the program with scalapack and using MPI/OpenMP, should the speed comparable to purely MPI?

I ask this question because MPI/OpenMP hybrid is the only way to run OpenMX (cluster & 1 k-point) with limited memory for very large system.

It seems the currently available version of ELPA support MPI/OpenMP hybrid.

Thank you very much for your help.

Very best regards,
Leo Ma
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Re: ELPA OpenMP/MPI ( No.1 )
Date: 2017/06/24 17:22
Name: T. Ozaki

Hi,

The ELPA introduced in OpenMX is the purely MPI version.

Regards,

TO
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