[Pw_forum] ZGEMM or MATMUL for MPI environment

Filippo SPIGA filippo.spiga at quantum-espresso.org
Thu Sep 1 23:00:15 CEST 2016

On Aug 31, 2016, at 9:33 PM, Ilya Ryabinkin <igryabinkin at gmail.com> wrote:
> So, the bottom line: ZGEMM and MATMUL should give the same, right?

assuming you get all paramaters right, yes. 

However, as best practice, use always ZGEMM instead of MATMUL.

Filippo SPIGA ~ Quantum ESPRESSO Foundation ~ http://www.quantum-espresso.org

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