mpich2 invalid port info error

[tom_z]

Hi,

I have installed mpich2 on two computers bp1 and bp2. It works fine individually on each computer either locally or by ssh. But when I try to run mpdboot -n 2 I got the following error:

debug: starting
running mpdallexit on bp1
debug: launch cmd= /usr/local/bin/mpd.py --ncpus=1 -e -d
debug: mpd on bp1 on port 39944
debug: info for running mpd: {'ncpus': 1, 'list_port': 39944, 'entry_port': '', 'host': 'bp1', 'entry_host': '', 'ifhn': ''}
debug: launch cmd= ssh -x -n -q bp2 '/usr/local/bin/mpd.py -h bioproximity1 -p 39944 --ncpus=1 -e -d'
debug: mpd on bp2 on port no_port
mpdboot_bp1 (handle_mpd_output 406): from mpd on bp2, invalid port info:
no_port


Any help is highly appreciated.

Tom

[steigers]

I encountered the same problem. In my case, the following was the case:

I installed python into a nonstandard location and set the LD_LIBRARY_PATH environment variable to the directory where libPython2.5.so.1.0 was located. However, my .cshrc (or .bashrc) was configured such that this variable is not set when logging in without a prompt, which is exactly what mpdboot.py is doing. So this resulted in not being able to load the python library, and for some odd reason it gave the error no_port in the end.

Solution: Be sure to load LD_LIBRARY_PATH when mpdboot.py is ssh-ing the other machines.

[bigbusyboy]

I encountered the same problem. In my case, the following was the case:

I installed python into a nonstandard location and set the LD_LIBRARY_PATH environment variable to the directory where libPython2.5.so.1.0 was located. However, my .cshrc (or .bashrc) was configured such that this variable is not set when logging in without a prompt, which is exactly what mpdboot.py is doing. So this resulted in not being able to load the python library, and for some odd reason it gave the error no_port in the end.

Solution: Be sure to load LD_LIBRARY_PATH when mpdboot.py is ssh-ing the other machines.

right. if u set LD_LIBRARY_PATH in your .bashrc file, do source it:
$vi .bashrc
LD_LIBRARY_PATH=$MPICH2_HOME/lib:$LD_LIBRARY_PATH
$source ~/.bashrc