Recent changes to support-requests

Firewall and pyMPI

Ramon Williamson — Tue, 13 Dec 2005 18:22:14 -0000

Hello.

We are having firewall issues with pyMPI, and I was
wondering if a certain range of ports are used by pyMPI
or is it random?

Ramon Williamson

possible memory leak

sarah — Mon, 20 Sep 2004 16:59:36 -0000

i've just started using pympi and it seemed at first that
everything was working great. Then, like didier, i noticed
that memory kept on increasing over time. I think I
finally narrowed it down to some of the mpi directives. If
I perform the following line of code multiple times:

local_ODEs_now[:] = mpi.scatter(self.ODEs_now)

then the memory on all nodes increases each time, with
the memory on the root node increasing at a greater
rate than the compute nodes.

is there any way i can prevent this from happening?

thanks,
--sarah

memory leak

dimier — Thu, 17 Jun 2004 12:00:57 -0000

When using pyMPI to make a transient coupled
simulation, I exchange lists between applications and I
see the memory used by my processes which is growing.
Do you have an idea what I am doing wrong?

Unittest/SimpleSend failed with Python2.2.2 on Tru64Unix

Anonymous — Fri, 14 Mar 2003 18:58:01 -0000

Dear Sir

Some tiles ago I've tried PyMPI, it was working pretty
well.

Today I try to generate PyMPI with Python 2.2.2 on OSF1
5.1
(COMPAQ Tru64UNIX).

All seems to work well during configure & make but,
when I try "test" with the Unittest/PyMPITest.py, the
script SimpleSend failed for 4 processors.

Output looks like:
...
Cartesian <0>
CalcPi<0>
SampleMIMD<0>
NullComm<0>
Pickled<>
ReduceSum<0>
SimpleSend<

We then enter in a loop for ever endded with CTRL D !

My mpirun use "prun -N1 -c1" (one MPI task per node).

What can I do ?
What is your Python release number ?
Does it works bettre with Python 2.3 ?

Thanks for your help, please reply.

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