dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Tue, Oct 23, 2012 at 09:29:05AM +0200, Johannes Ring wrote:
> On Tue, Oct 23, 2012 at 9:14 AM, Johannes Ring <johannr@xxxxxxxxx> wrote:
> > On Tue, Oct 23, 2012 at 9:00 AM, Anders Logg <logg@xxxxxxxxx> wrote:
> >> On Tue, Oct 23, 2012 at 08:59:36AM +0200, Johannes Ring wrote:
> >>> On Tue, Oct 23, 2012 at 8:27 AM, Anders Logg <logg@xxxxxxxxx> wrote:
> >>> > On Mon, Oct 22, 2012 at 10:44:17PM -0700, Anders Logg wrote:
> >>> >> I'm having trouble getting DOLFIN configure to recognize the LAPACK
> >>> >> built as part of my ATLAS install. Exactly what is the CMake module
> >>> >> FindLAPACK module looking for?
> >>> >>
> >>> >> Is the LAPACK installation by ATLAS (using --with-netlib-lapack-tarfile) not
> >>> >> sufficient?
> >>> >
> >>> > The problem seems to be that CMAKE_LIBRARY_PATH is not used in
> >>> > FindLAPACK.cmake. It's instead using the variable _libdir.
> >>> >
> >>> > I haven't been hacking CMake for quite some time. Can someone
> >>> > enlighten me on whether anything is broken in FindLAPACK.cmake?
> >>>
> >>> I'm also having trouble with DOLFIN and my selfbuilt ATLAS/LAPACK. I
> >>> will let you know if I found something out.
> >>
> >> Great, thanks.
> >
> > This worked for me:
> >
> >   -D BLA_VENDOR:STRING=ATLAS \
> >   -D LAPACK_DIR:PATH=${ATLAS_DIR} \
> >   -D LAPACK_LIBRARIES:FILEPATH=${ATLAS_DIR}/lib/liblapack.a \
> >   -D BLAS_DIR:PATH=${ATLAS_DIR} \
> >   -D BLAS_LIBRARIES:FILEPATH="${ATLAS_DIR})/lib/libf77blas.a;${ATLAS_DIR})/lib/libcblas.a;${ATLAS_DIR})/lib/libatlas.a"
>
> There was a typo there, but this also works for me:
>
>       -D LAPACK_LIBRARIES:FILEPATH=${ATLAS_DIR}/lib/liblapack.a \
>       -D BLAS_LIBRARIES:FILEPATH=${ATLAS_DIR}/lib/libatlas.a

ok, I'll try that later.

But it seems unnecessarily complicated. It should be enough for us to
define FOO_DIR to make it work. Can we define these extra variables in
CMakeLists.txt in DOLFIN or modify FindLAPACK?

Another issue is whether it would be possible to just define one
variable, say FENICS_DIR, and use as a fallback for all dependencies.

I have a config file containing this:

export BLAS_DIR=$PREFIX
export LAPACK_DIR=$PREFIX
export LAPACKANDBLAS_DIR=$PREFIX
export BOOST_ROOT=$PREFIX
export ARMADILLO_DIR=$PREFIX
export PETSC_DIR=$PREFIX
export PETSC_ARCH=linux-gnu-cxx-opt
export SLEPC_DIR=$PREFIX
export UFC_DIR=$PREFIX
export TRILINOS_DIR=$PREFIX

If one uses Dorsal to build all dependencies for DOLFIN, it would be
convenient to define just FENICS_DIR and if one of the libraries we
depend on happens to be in another place that can be overridden. I
imagine we could add a section to deal with this in CMakeLists.txt.

if (NOT _BLAS_DIR)
  set(BLAS_DIR ${FENICS_DIR})
endif ()
if (NOT _LAPACK_DIR)
  set(LAPACK_DIR ${FENICS_DIR})
  + extra LAPACK stuff
endif ()
etc

--
Anders