[petsc-users] configuration problem

[Jose E. Roman]

El 11/11/2011, a las 12:21, Konstantinos Kontzialis escribió:

> Dear Jose,
> 
> I do this
> 
> ./configure --with-debugging=1 --with-mpi-dir=/usr/lib64/mpich2/bin \
> >         --with-shared-libraries \
> >         --with-large-file-io=1 \
> >         --with-precision=__float128 \
> >         --with-blacs=1 --download-f2cblaslapack=yes \
> >         --with-plapack=1 --download-plapack=yes \
> >         --with-scalapack=1 --download-scalapack=yes \
> >         --with-superlu=1 --download-superlu=yes \
> >         --with-superlu_dist=1 --download-superlu_dist=yes \
> >         --with-ml=1 --download-ml=yes \
> >         --with-umfpack=1 --download-umfpack=yes \
> >         --with-sundials=1 --download-sundials=1 \
> >         --with-parmetis=1 --download-parmetis=1 \
> >         --with-hypre=1 --download-hypre=1
> 
> and I get :
> 
> ===============================================================================
>             Configuring PETSc to compile on your system
> ===============================================================================
> TESTING: checkLib from config.packages.BlasLapack(config/BuildSystem/config/packages/Bla*******************************************************************************
>         UNABLE to CONFIGURE with GIVEN OPTIONS    (see configure.log for details):
> -------------------------------------------------------------------------------
> --download-f2cblaslapack libraries cannot be used
> *******************************************************************************
> 
> What should I do?


I forgot to mention that external packages do not support __float128. If you really want to use __float128 it is only possible with plain PETSc.

For configuration problems it is better to send configure.log to petsc-maint.

Jose