Fork process off of Bash script

[jrop]

Hello, here's my problem:

I have a simulation that takes an awful long time to run (written in C++), but it is possible to split up the simulation into several parts. In an effort to do this, I have created a python script that connects to various machines on the network (it uses ssh via the paramiko module). After connecting to each machine, it attempts to execute a script that is supposed to fork the C++ program off running its little 'piece'.

So here's the problem:
After running my python program, I check to see if the C++ program is running on the computer that I had ssh'd into, but it is not running. It seems to me that after closing the ssh connection, all child processes of the bash script got killed.

Here is the script in question (with program names and arguments changed for simplicity):

<begin simrun.sh>
#!/bin/bash
CMD="( ( ../SimulationProgram [args...] ) > [outfile]) &" # shouldn't the '&' fork the process???

eval $CMD
echo "Success."
wait $! #should I even need this?
<end simrun.sh>

Also interesting to note: the python program that ssh's is able to read the "Success." message from the script's output stream...

Any thoughts/suggestions/criticisms would be greatly appreciated!

[HROAdmin26]

Google: nohup

[jrop]

Thanks for your prompt reply.

I tried nohup, as well as disown, disown -h, and at, and none of them seem to work.