[Trilinos-Users] Scalapack 2.0.2 and Blacs

[Bartlett, Roscoe A.]

Denis,
 
> I just realised that this are warnings only, supposedly it still plays fine and
> links against SCALAPACK.

This is historical behavior of the find modules. However, you will see some find modules that require that all listed libs be found.  See MUST_FIND_ALL_LIBS at:

    https://tribits.org/doc/TribitsDevelopersGuide.html#tribits-tpl-find-include-dirs-and-libraries

Again, this behavior is historical and I can't seem to find a discussion of why this was the behavior but this is a case where it seems to have worked out.

NOTE: If you don't like this warning you can always configure with:

   -D SCALAPACK_LIBRARY_NAMES=scalapack

as described here:

    https://tribits.org/doc/TribitsBuildQuickRef.html#enabling-support-for-an-optional-third-party-library-tpl

and that will avoid the search for the other libs and the warnings.

Perhaps this should be a "note" and not a "warning"?

The other problem we have is that we don't have a way in general to require or search for specific versions of TPLs.

Cheers,

-Ross


_______________________________________________________________________________
Dr. Roscoe A. Bartlett, PhD
Oak Ridge National Laboratory
CASL Physics Integration Software Engineering Lead
Trilinos Software Engineering Technologies and Integration Lead
http://web.ornl.gov/~8vt/






> > On 14 Jan 2015, at 11:47, Denis Davydov <davydden at gmail.com> wrote:
> >
> > Dear developers,
> >
> > I am trying to build Trilinos on mac with Scalapack, what I see from CMake
> log is:
> >
> > -- Processing enabled TPL: SCALAPACK
> > --   Searching for library 'scalapack' ...
> > --     Found SCALAPACK TPL library: /usr/local/lib/libscalapack.dylib
> > --   Searching for library 'blacs' ...
> > --   Warning: Could not find a library in the set "blacs" for the TPL
> SCALAPACK!  Please manually set SCALAPACK_LIBRARY_DIRS and/or
> SCALAPACK_LIBRARY_NAMES or just TPL_SCALAPACK_LIBRARIES to point to
> the SCALAPACK libraries!
> > --   Searching for library 'blacsF77' ...
> > --   Warning: Could not find a library in the set "blacsF77" for the TPL
> SCALAPACK!  Please manually set SCALAPACK_LIBRARY_DIRS and/or
> SCALAPACK_LIBRARY_NAMES or just TPL_SCALAPACK_LIBRARIES to point to
> the SCALAPACK libraries!
> > --   Searching for library 'blacs' ...
> > --   Warning: Could not find a library in the set "blacs" for the TPL
> SCALAPACK!  Please manually set SCALAPACK_LIBRARY_DIRS and/or
> SCALAPACK_LIBRARY_NAMES or just TPL_SCALAPACK_LIBRARIES to point to
> the SCALAPACK libraries!
> > --   TPL_SCALAPACK_LIBRARIES='/usr/local/lib/libscalapack.dylib'
> > --   TPL_SCALAPACK_INCLUDE_DIRS=‘'
> >
> >
> > If I am not mistaken since Scalapack 2.0.0, BLACS are included (at least that
> is a comment on MacPorts).
> > In the target folder, however, i definitely don’t see any “blacs”  “blacsF77”
> libs.
> > I wonder if the requirement in FindTPLSCALAPACK.cmake to find those
> libraries could be
> > dropped and the symbols are sitting in “libscalapack.dylib”?
> >
> >
> > Kind regards,
> > Denis
> >
> 
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