RE: [Pympi-users] pyMPI interactively

[<db...@br...>]

Thanks for some assistance. Details below.

> Does pyMPI run correctly when you startup interactively without running
> sum.py?
>
> i.e. in your case you should get:
>
> $ mpirun -np 3 pyMPI
>
> Python 2.4 (pyMPI 2.1b4) on sunos5
> Type "help", "copyright", "credits" or "license" for more information.
> Python 2.4 (pyMPI 2.1b4) on sunos5
> Type "help", "copyright", "credits" or "license" for more information.
> Python 2.4 (pyMPI 2.1b4) on sunos5
> Type "help", "copyright", "credits" or "license" for more information.
>
>>>>

No, I can never get a prompt. Every time Python gets to where it should
give the prompt, it either hangs till I control+c and gives the following
error, or just gives the error immediately:

pyMPI aborting on untrapped fatal signal 11 (SIGSEGV) on rank 0
Fatal Python error: PyThreadState_Get: no current thread
-------------------------------------------------------------------------=
----
One of the processes started by mpirun has exited with a nonzero exit
code.  This typically indicates that the process finished in error.
If your process did not finish in error, be sure to include a "return
0" or "exit(0)" in your C code before exiting the application.

PID 944 failed on node n0 (10.0.0.1) due to signal 6.
-------------------------------------------------------------------------=
----

I thought I'd try the unittests. I had to change line 231 in PyMPITest.py=
 to:

cart =3D mpi.cart_create((1,int(mpi.procs)), (1,1), 0)

and then they all ran without errors. So whatever is causing the crash,
the unittests are testing for it.

> Obviously my copy is a later version and on Solaris, but b3 should work
> correctly as well. Also, what is inside sum.py?

It doesn't really matter, as this happens with any python program,
including an empty one, and the fractal.py example program.

It must be that the Pythons are talking to each other correctly... if
anyone has any ideas of other things to test/try please let me know.

Thanks!

-Doug

> Julian Cook
> -----Original Message-----
> From: pym...@li...
> [mailto:pym...@li...]On Behalf Of
> db...@br...
> Sent: Sunday, September 25, 2005 4:55 PM
> To: pym...@li...
> Subject: [Pympi-users] pyMPI interactively
>
>
> Greetings pyMPI-users,
>
> I'm working on some major upgrades, moving from pyMPI-1.3a1 running on
> RedHat 9 to pyMPI-2.4b3 running Fedore Core 4. I'm running
> lam-7.1.1-7.FC4. I'm using rsh on a private network. Once I got the pro=
per
> version of rsh running on the machines (had to remove kerberos "rpm -e
> krb5-workstation"), most things generally work the same as before. For
> example:
>
> [dblank@bw40 mpi]$ mpirun -np 3 pyMPI sum.py
> 24499996500000
>
> But, I used to be able to also run Python interactively. If I try with =
the
> -i flag, I get an error, or it hangs:
>
> [dblank@bw40 mpi]$ mpirun -np 3 pyMPI -i sum.py
>>>>
> 24499996500000
> pyMPI aborting on untrapped fatal signal 11 (SIGSEGV) on rank 0
> Fatal Python error: PyThreadState_Get: no current thread
> -----------------------------------------------------------------------=
-----
> -
> One of the processes started by mpirun has exited with a nonzero exit
> code.  This typically indicates that the process finished in error.
> If your process did not finish in error, be sure to include a "return
> 0" or "exit(0)" in your C code before exiting the application.
>
> PID 28595 failed on node n0 (10.0.0.40) due to signal 6.
> -----------------------------------------------------------------------=
-----
> -
>
> Has something changed that prevents me from running interactively that
> way? I looked through the archives but didn't see anything. Maybe I hav=
e
> something configure incorrectly?
>
> Thanks for any hints,
>
> -Doug
>
>
>
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