[petsc-users] installing petsc via spack on ac922 (a summit like system)

[Satish Balay]

BTW: You might be able to do the same via spack.

spack install petsc at 3.7.7 ~hdf5 ~hypre ~superlu-dist cflags=-fopenmp fflags=-fopenmp cxxflags=-fopenmp

Satish

On Tue, 10 Mar 2020, Satish Balay via petsc-users wrote:

> Cameron,
> 
> You can try changing following petsc configure options and see if that works.. [i.e build petsc manually]
> 
> CFLAGS=-fopenmp FFLAGS=-fopenmp CXXFLAGS=-fopenmp
> 
> Satish
> 
> On Tue, 10 Mar 2020, Cameron Smith wrote:
> 
> > Thank you Mark.
> > 
> > The configure.log is attached.
> > 
> > Please let me know if any other info is needed.
> > 
> > -Cameron
> > 
> > On 3/10/20 7:31 AM, Mark Adams wrote:
> > > Hi Cameron,
> > > 
> > > This can go on the list and we always want the configure.log file.
> > > 
> > > I build on Summit, but have not used the XL compilers. I've built 3.7.7 with
> > > GNU and PGI. (XGC usually wants PGI)
> > > 
> > > 
> > > 
> > > On Mon, Mar 9, 2020 at 11:27 PM Cameron Smith <smithc11 at rpi.edu
> > > <mailto:smithc11 at rpi.edu>> wrote:
> > > 
> > >     Hello,
> > > 
> > >     I'm installing petsc 3.7.7 on a summit like system with the following
> > >     spack spec:
> > > 
> > >     petsc at 3.7.7 ~hdf5 ~hypre ~superlu-dist
> > > 
> > >     with the XL 16.1.1 compiler and Spectrum MPI 10.3 .  This install
> > >     produces a `/path/to/petsc/install/lib/petsc/conf/petscvariables` file
> > >     that contains '-lxlomp_ser' in the 'PETSC_EXTERNAL_LIB_BASIC' and
> > >     'PETSC_WITH_EXTERNAL_LIB' variables.
> > > 
> > >     The application I'm building, XGC, has a makefile based build system
> > >     that includes '/path/to/petsc/install/lib/petsc/conf/variables'
> > >     which in
> > >     turn includes '/lib/petsc/conf/petscvariables'.
> > > 
> > >      From what I can tell, xlomp_ser is a serial implementation of the
> > >     openmp library.  When XGC links this library it satisfies the openmp
> > >     symbols XGC wants and at run time results in openmp API calls like
> > >     'omp_get_max_threads()' returning 1 regardless of the OMP_NUM_THREADS
> > >     setting.
> > > 
> > >     Do you know how I can build petsc, with or without spack, and avoid
> > >     this
> > >     library being listed in 'lib/petsc/conf/petscvariables'?
> > > 
> > >     If this should go to a petsc mailing list or git repo issues page I can
> > >     send it there.
> > > 
> > >     Thank-you,
> > >     Cameron
> > > 
> > 
> > 
>