remote access - Is there a way to detach/reattach the Frontend from a running Mathematica Kernel?

I perform long calculations on a fast remote machine running the Mathematica kernel, where I followed the very useful guide Remote Kernel Strategies to establish the connection. I wonder, however, if there is a way to detach the Frontend from the running kernel in the same way as one can use the Linux program screen to keep remote shell sessions alive. I couldn't find anything similar for Mathematica, even though such a feature would be very convenient. Is there a way of doing that?

Many thanks,

Andreas.

Answer

This comes a little late, but this is my solution:

Remote Machine running linux with tmux (similar to screen but newer, should work with screen but I dont know the commands) and Mathematica 10 installed.

Local Machine running MacOS Yosemite with Mathematica 10.

Launch tmux in remote machine and execute Mathematica:

tmux

wolfram (executable to mathematica in terminal mode)

Now create a link with TCPIP protocol. Record the linkname="linkPort1@remoteIP,linkPort2@remoteIP" generated.

link=LinkCreate[LinkProtocol -> "TCPIP"]                                
LinkObject[linkPort1@remoteIP,linkPort2@remoteIP, 72, 1]

Now in local machine, start Mathematica and go to Evaluation->Kernel Configuration Options -> Add... and fill out the window just as showed below.Dont forget to replace (insert remote ip ) by the remote machine ip address and insertLinkName by the link name that was generated above clic ok. Then open a new notebook and set the above created kernel as the notebooks kernel. Dont evaluate anything yet in this notebook.

Go back to your remote machine and run
```
$ParentLink=link
```

Finally go back to the notebook in your local machine and evaluate something:
```
$Version 
```

So now you are running the kernel in the remote machine with the front end in your local machine.

To disconnect from the Kernel, evaluate the following in your notebook:
```
LinkClose /@ Links[]
```

At this point your kernel is still running in the remote machine. To reattach follow steps 2 through 5.

This could be automatized with a script. Also if you know that a port is always available, you could set the link with a persisten name so that you dont have to reconfigure the remote kernel each time you attach.

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