RE: [Pympi-users] Idle as the console/ TCP locked down, so IDLE loopback doesn't work

[Julian C. <rjc...@cs...>]

Hi Pat, I tried it:

 Idle seems to work, but it appears that there is no communication with the
sub-process. I made it hang by doing following:
>>> import mpi
>>> mpi.size
2
>>> r = mpi.rank * 2
>>> mpi.reduce(r, mpi.SUM)

Looking at the stack for the master process yields following:
(i.e. it seems to be waiting for a reply, but nothing was ever sent, so I
can t be sure that the child even exec'd any of the statements)

 12626:  /home/jcook/python/Python-2.4/bin/pyMPI -i pyMPI_idle.py -n -p4pg
/iro
-----------------  lwp# 1 / thread# 1  --------------------
 fef9d5fc poll     (ffbe7030, 1, 2328)
 fef4d534 select   (6, 0, 0, ffbe7038, fefbf1bc, ffbe7030) + 348
 feddaa28 select   (1, 2aa908, 0, ffffffff, 0, 613968) + 34
 001721ec recv_message (2c8938, 2c7ee0, 1, ffffffff, 357d38, 357dc1) + 2c
 00171f58 p4_recv  (2c8938, 2c7ee0, ffbe72d8, 2c9138, ffbe72ec, 3bc528) + 78
 00179aa8 MPID_CH_Check_incoming (2cc4d0, 1, 200, 1, 3db, 4) + 348
 00161c44 MPID_RecvComplete (ffbeb408, ffbebb94, ffbeb500, 35bf58, 1, 3db) +
124
 00163fe8 MPID_RecvDatatype (3be268, ffbebbb0, 1, 35bf58, 1, 3db) + 88
 001190f0 MPI_Recv (ffbebbb0, 1, 87, 1, 3db, 85) + 2d8
 00064b10 pyMPI_recv (387920, 1, 3db, 0, 0, 0) + 1d8
 00059db8 pyMPI_collective (387920, 0, 3a2fec, 0, 0, 613968) + 290
 0005c270 reduction (ffbebf08, 613968, 0, 0, 0, 0) + 500
 0005d7b8 pyMPI_collective_reduce (387920, 613968, 0, 5d788, 3d6c60, 4a2658)
+ 30
 000c3cfc call_function (613968, 35f268, 0, 3d6c60, ffbec08c, 43aaec) + 3b8
 000c0d10 PyEval_EvalFrame (bd20c, 26f0fc, 26f0f0, 253c54, 35f268, 0) + 38c8
 000c2304 PyEval_EvalCodeEx (0, 378a50, 0, 0, 0, 0) + 9f8
 000bd1d4 PyEval_EvalCode (69b3a0, 378a50, 378a50, 1, 0, 2582d4) + 28
 000c55c4 exec_statement (2557d8, 69b3a0, 378a50, 0, 4396e0, 378a50) + 29c
....everything before this removed..I can send the whole thing if you want
it.

FYI: See my email from yesterday - check if you can switch off loopback with
'-n' i.e.
% mpirun -np 2 ./pyMPI -i pyMPI_idle.py -n
in PyShell.py -n is documented as "run IDLE without a subprocess"

-----Original Message-----
From: pym...@li...
[mailto:pym...@li...]On Behalf Of Pat Miller
Sent: Wednesday, August 17, 2005 12:47 PM
To: rjc...@cs...; pym...@li...
Subject: Re: [Pympi-users] Idle as the console


Perhaps

% mpirun -np 2 ./pyMPI -i pyMPI_idle.py

..snip..