Again, thanks to some other posts, I think I've found a reasonable, if not
elegant, solution to the dlopen() issue with python and openmpi. Here is what
I'm doing. First I make a python binding to the following function in module
mpi_dl.py:
void mpi_dlopen()
{
void *handle;
handle = dlopen("libmpi.so", RTLD_LAZY|RTLD_GLOBAL);
dlclose(handle);
}
I compile this into a python file called openmpi.py that has the binding and
the python call, ie.:
import _mpi_dlopen
# ... stuff for binding mpi_dlopen function
mpi_dlopen()
Then, in my python scripts (where I will load my other bindings, I do the
following):
import openmpi
import my_other_modules
# .... go forth and conquer
Actually, I include these lines at the very beginning of my my_other_modules so
that users don't have to put this ugly code in their python scripts. In other
words, I'm doing what I was doing using python's dl package, but this is
cross-platform (I hope).
Tom
On 7/14/09 12:07 PM, "Jeff Squyres" <[email protected]> wrote:
(off list)
Tom --
I'm usually the guy who answers dynamic linker questions in the OMPI
community.
Be aware that I'm on vacation this week and am only replying to you
under great personal risk to my person (if my wife catches me on work
mail, I'm hosed!! ;-) ).
Hopefully, you can wait for a rely until next week, when I return and
dig out from the 6M+ emails that will surely have accrued while I was
gone...
On Jul 14, 2009, at 10:48 AM, Evans, Thomas M. wrote:
> Well, my previous solution has a major flaw, the python dl module is
> not
> available on AMD64. So, I'm not really sure what to do except drop
> support
> for openmpi. Any ideas would be greatly appreciated. Thanks.
>
> Tom
> --
> Tom Evans
> Radiation Transport and Shielding
> Nuclear Science and Technology Division
> ------------------------------------------------
> (865) 576-3535 Oak Ridge National Laboratory
> (865) 574-9619 fax PO Box 2008 MS6172
> [email protected] Oak Ridge, TN 37831-6170
> www.ornl.gov/sci/radiation_transport_criticality
> ------------------------------------------------
>
>
> _______________________________________________
> users mailing list
> [email protected]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
--
Jeff Squyres
Cisco Systems
--
Tom Evans
Radiation Transport and Shielding
Nuclear Science and Technology Division
------------------------------------------------
(865) 576-3535 Oak Ridge National Laboratory
(865) 574-9619 fax PO Box 2008 MS6172
[email protected] Oak Ridge, TN 37831-6170
www.ornl.gov/sci/radiation_transport_criticality
------------------------------------------------
------ End of Forwarded Message
