[petsc-users] petsc4py Build Problem

[Mikhail Khodak]

Thank you for your help - the install seems to work, apart from routines
requiring MPI, which fail due to the "Attempting to use an MPI routine
before initializing MPI" error. This seems to be an error in the PETSc
build itself.
Thanks again,
Mikhail Khodak

On Mon, Jun 8, 2015 at 5:11 AM, Lisandro Dalcin <dalcinl at gmail.com> wrote:

> On 8 June 2015 at 02:50, Mikhail Khodak <mkhodak at princeton.edu> wrote:
> > Hello, I am trying to build petsc4py-3.5.1 using Cygwin on 64-bit
> Windows 7.
> > I have built PETSc 3.5.4 with shared and dynamic libraries using
> > mpich2-1.2.1 and successfully ran the installation tests. I am using
> Python
> > 2.7 and NumPy 1.9.2 and have installed mpi4py. However, when I attempt to
> > install petsc4py (both with pip and distutils) I get a mpicc compiler
> error
> > due to undefined references/symbols. I have attached the output of
> running
> >
> > pip install petsc petsc4py --allow-external petsc --allow-external
> petsc4py
> >
>
> I've never ever built or test petsc4py under Cygwin. The errors you
> see are expected.
> Perhaps you can manually workaround the issues following the following
> steps:
>
> 1) Download the petsc4py tarball and unpack it.
> 2) Open the file "src/libpetsc4py/libpetsc4py.h", add remove all
> occurences of DL_IMPORT, i.e, replace DL_IMPORT(XYZ) for just XYZ
> 3) Use pip again:
>
> pip install petsc
> pip install .
>
> The last line assumes your current working directory is the one having
> petsc4py's setup.py
>
> Finally, I do not guarantee this will work. I'm just guessing,
> petsc4py never explicitly supported Windows and/or Cygwin.
>
>
> --
> Lisandro Dalcin
> ============
> Research Scientist
> Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
> Numerical Porous Media Center (NumPor)
> King Abdullah University of Science and Technology (KAUST)
> http://numpor.kaust.edu.sa/
>
> 4700 King Abdullah University of Science and Technology
> al-Khawarizmi Bldg (Bldg 1), Office # 4332
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> http://www.kaust.edu.sa
>
> Office Phone: +966 12 808-0459
>
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