#18 no prompt with mpich but seems to work with lam

[Thomas Hauser]

HI,

I'm not getting a python prompt using mpich and python
2.3.3, but it works all fine with lam.
Executing scripts in parallel works also with mpich, but if I
just run mpirun -np 2 ./pyMPI it just sits there
and gives me the output:
Python 2.3.3 (pyMPI 2.1b3) on linux2
Type "help", "copyright", "credits" or "license" for more
information.
but no prompt. If i after a while interrupt it with Ctrl-c, I get
the following error messages
3_15611: (54.617902) net_send: could not write to fd=5,
errno = 32
p3_15611: p4_error: net_send write: -1
p4_error: latest msg from perror: Broken pipe
p4_error: latest msg from perror: Broken pipe
p2_15525: (55.542071) net_send: could not write to fd=5,
errno = 32
p2_15525: p4_error: net_send write: -1
p1_15440: (56.421708) net_send: could not write to fd=5,
errno = 32
p1_15440: p4_error: net_send write: -1
p4_error: latest msg from perror: Broken pipe

Any suggestions.

Regards

Thomas Hauser

[Michael P. Steder]

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I have the same error with mpich, and am installing lam at
the moment to see if that resolves the issue.

[Michael P. Steder]

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I was able to replicate your problem with PyMPI. It almost
worked with lam-mpi. I've tested a new version of pyMPI,
version 2.0b4, which appears to have resolved this issue.

Once you get the new sources you should configure pyMPI with
the at least "--with-isatty", and possibly "--with-isatty
--with-prompt-nl".

The new version should be available for download in the next
day or two. I've attached an unstable version that contains
these fixes. I don't think Pat really wants people using
this version, but if you can't wait for the new stable
version...

[Michael P. Steder]

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user_id=564691

Nevermind, it won't let me upload an attachment over 256K,
so e-mail me if you need the source asap.