Re: [Pympi-users] Problem running pyMPI with OpenMPI

[Luigi P. <lu...@la...>]

> 2. It appears that your pympi build will actually run non-interactively, 
> though I suggest you confirm it by creating a non-trivial script, such 
> as the pi example and running it as a file:
> 
> $ mpirun -np 3 pyMPI pi_test.py

It seems to work:

$ mpirun -np 3 pyMPI fractal.py
Starting computation (groan)

process 1 done with computation!!
process 2 done with computation!!
process 0 done with computation!!
Header length is  54
BMP size is  (400, 400)
Data length is  480000

Pretty output image! For the time being I can test only one CPU, anyway 
3 parallel processes started.

> 3. If this runs with good output over all cpu's then the probable cause 
> is the build, you need to add --isatty to the configure, There is an 
> example of building on Solaris in the mailing list [2005] that discusses 
> this. Also there are new line config flags that need to be considered.

Well, I've tried with these options:

$ CC=mpicc; ./configure -prefix=<inst path> --with-includes=-I<mpi 
path>/include --with-isatty --with-prompt-nl

but I get this error:

mpicc -DHAVE_CONFIG_H -I. -I. -I.   -I<mpi path>/include 
-I/usr/include/python2.4 -g -O2 -g -O2 -c `test -f 'pyMPI_isatty.c' || 
echo './'`pyMPI_isatty.c
pyMPI_isatty.c:52: error: syntax error before '{' token
make[1]: *** [pyMPI_isatty.o] Error 1
make[1]: Leaving directory `<src path>/pyMPI-2.4b4'
make: *** [all] Error 2

> 4. If the above test doesn t work, you need to fall back to testing mpi 
> itself, using the examples in the mpi installation. pympi is effectively 
> an mpi program, so mpi itself must work for python to work.

MPI itself works!


Thank you.

Luigi