[petsc-users] Building petsc4py / mpi4py

[Florian Lindner]

Am 23.01.2017 um 13:59 schrieb Matthew Knepley:
> On Mon, Jan 23, 2017 at 6:38 AM, Florian Lindner <mailinglists at xgm.de <mailto:mailinglists at xgm.de>> wrote:
> 
>     Hello,
> 
>     I try to build petsc from the maint branch together with petsc4py and mpi4py
> 
>     python2 configure --download-petsc4py=yes --download-mpi4py=yes --with-mpi4py=yes --with-petsc4py=yes --with-debugging=1
>     make
> 
>     works without errors, so does make test.
> 
>     % echo $PYTHONPATH
>     /home/florian/software/petsc/arch-linux2-c-debug/lib
> 
>     % ls $PYTHONPATH
>     libpetsc.so  libpetsc.so.3.7  libpetsc.so.3.7.5  mpi4py  mpi4py-1.3.1-py3.6.egg-info  petsc  petsc4py
>     petsc4py-3.7.0-py3.6.egg-info  pkgconfig
> 
> 
>     but:
> 
>     % python2 RBF_Load.py
>     Traceback (most recent call last):
>       File "RBF_Load.py", line 10, in <module>
>         petsc4py.init(sys.argv)
>       File "/home/florian/software/petsc/arch-linux2-c-debug/lib/petsc4py/__init__.py", line 42, in init
>         PETSc = petsc4py.lib.ImportPETSc(arch)
>       File "/home/florian/software/petsc/arch-linux2-c-debug/lib/petsc4py/lib/__init__.py", line 29, in ImportPETSc
>         return Import('petsc4py', 'PETSc', path, arch)
>       File "/home/florian/software/petsc/arch-linux2-c-debug/lib/petsc4py/lib/__init__.py", line 63, in Import
>         fo, fn, stuff = imp.find_module(name, pathlist)
>     ImportError: No module named PETSc
> 
> 
>     Anyone having an idea what could be the problem here?
> 
> 
> Is your PETSC_ARCH correct?

I think so:

% ls $PETSC_DIR/$PETSC_ARCH
bin  CMakeCache.txt  CMakeFiles  cmake_install.cmake  externalpackages  include  initial_cache_file.cmake  lib  Makefile
 obj  share

% echo $PETSC_DIR
/home/florian/software/petsc

% echo $PETSC_ARCH
arch-linux2-c-debug

Florian