Thank you very much for the information. I have not used gfortran for long time.

Just on question: I did not fully understand the last sentence:

> In a test taking 2.5 h/iteration gfortran/ifort time was 1.3. A current
> test got interesting when one of my disks containing ifort crashed.

Does it say with gfortran/OpenBlas it takes  2.5h, with ifort/mkl 1.3h ?

Or does it mean that the ratio of the two timings is  1.3,
i,.e. gfortran runs 1.3 times slower than ifort ?

Regards

On 12/05/2016 11:54 AM, John Rundgren wrote:
Dear WIEN2k team,

siteconfig and User's Guide can be updated concerning gfortran and BLAS:

 L Linker Flags:         $(FOPT) -I /opt/OpenBLAS/include
-L/opt/OpenBLAS/lib
 R R_LIB (LAPACK+BLAS):  -lopenblas -lpthread -lgfortran

OpenBLAS being available from the sites

www.openblas.net and
https://github.com/xianyi/OpenBLAS/wiki/Installation-Guide

In a test taking 2.5 h/iteration gfortran/ifort time was 1.3. A current
test got interesting when one of my disks containing ifort crashed.

Regards,
John Rundgren




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