[CIG-SHORT] problem with installation of pylith 64bit from source code

[Matthew Knepley]

This is a problem with the nemesis installation, since this is what loads the
_mpi module for Python. It is common (if you have multiple MPI installations)
to select the wrong one at nemesis installation time. You muse have the
correct 'mpirun' or 'mpiexec' in your path when installing nemesis.

  Thanks,

     Matt

2008/10/2 Makoto Hoshino <m-hoshino at aist.go.jp>:
> Dear pylith developers,
>
> As written in the previous email from Ikuo, I have installed Pylith from
> the source code into a 64bit computer machine with specification:
>
> OS: CentOS release 4.4 (Final)
> linux: 2.6.9-42.0.10.ELsmp x86_64
> CPU(64bit): Intel(R) Xeon(R) X5355 @ 2.66GHz
>
> As a note, I installed Python2.5 to /usr/local2/ and export
> PYTHONPATH=/usr/local2/lib/python2.5/site-packages,
> and installed pylith so that it does NOT depend on MPICH but MPICH2.
>
>  No noticeable warning was found in the installation process of Pylith,
> but I was not able to run it correctly. To be specific, I tried to run
> Pylith in the directory src/pylith/examples/3d/hex8 by typing " pylith
> dislocation.cfg". However, I only obtained the following messages.
>
> Traceback (most recent call last):
> File "/usr/local2/bin/pylith", line 31, in <module>
> from pylith.PyLithApp import PyLithApp
> File "/usr/local2/lib/python2.5/site-packages/pylith/PyLithApp.py", line
> 17, in <module>
> from mpi import Application
> File
> "/usr/local2/lib/python2.5/site-packages/pythia-0.8.1.7-py2.5.egg/mpi/__init__.py",
> line 14, in <module>
> from _mpi import *
> ImportError: No module named _mpi
>
> Could you tell me what happened? I think the following information
> obtained from the python shell is useful to make a diagnosis.
>
> [dry at n100 ~]$ python
> Python 2.5.2 (r252:60911, Sep 25 2008, 15:56:45)
> [GCC 3.4.6 20060404 (Red Hat 3.4.6-3)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>
>>>> >>> import sys
>>>> >>> sys.path
>>>>
> ['', '/usr/local2/lib/python2.5/site-packages/merlin-1.4.egg',
> '/usr/local2/lib/python2.5/site-packages/Cheetah-2.0.1-py2.5-linux-x86_64.egg',
> '/usr/local2/lib/python2.5/site-packages/pythia-0.8.1.7-py2.5.egg',
> '/usr/local2/lib/python2.5/site-packages/nemesis-1.0-py2.5.egg',
> '/usr/local2/lib/python2.5/site-packages',
> '/usr/local2/lib/python25.zip', '/usr/local2/lib/python2.5',
> '/usr/local2/lib/python2.5/plat-linux2',
> '/usr/local2/lib/python2.5/lib-tk', '/usr/local2/lib/python2.5/lib-dynload']
>
>>>> >>> import mpi
>>>>
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File
> "/usr/local2/lib/python2.5/site-packages/pythia-0.8.1.7-py2.5.egg/mpi/__init__.py",
> line 14, in <module>
> from _mpi import *
> ImportError: No module named _mpi
>
>>>> >>>
>>>>
>
> ------------------------------------------------------
> Makoto HOSHINO
> Seismogenic Process Research Group
> Institute of Geology and Geoinformation
> National Institute of Advanced Industrial Science and Technology
> tel; 029-861-2460, fax; 029-861-3682
> email; m-hoshino at aist.go.jp
> -------------------------------------------------------
>
>
>
>
>
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>



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What most experimenters take for granted before they begin their
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