[Pw_forum] How to convince QE from local lapack/blas?

[Paolo Giannozzi]

On Aug 1, 2011, at 12:08 , Guntram Schmidt wrote:

> Is it meaningful to have the internal lapack loaded after
> the external one? I mean:
>
> LAPACK_LIBS    =  -lessl -L/gpfs/usrurz/lib64 -llapack
> /gpfs/home/aasfu/espresso-4.3.2/lapack-3.2/lapack.a
>
> vs.
>
> LAPACK_LIBS    =  -lessl -L/gpfs/usrurz/lib64 -llapack

it shouldn't make any difference: lapack routines should be linked
from essl if present there, from /gpfs/usrurz/lib64 if not. Nothing
should be linked from the internal library. The best way to be sure
is "experimental computer science", i.e., to try and see what happens.

P.
---
Paolo Giannozzi, Dept of Chemistry&Physics&Environment,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222