Given the exasperating RAM needs of my Mathematica program, I contemplated launching remote kernels to run my Mathematica script. This is a two part question:
Part 1
If I launch a remote kernel(s), is the need for RAM also distributed amongst all the remote computers?
Part 2
I keep getting an error message when I try to launch a remote kernel from the Mathematica GUI.
The kernel c20-0707-23 failed to connect to the front end. (Error = MLECONNECT). You should try running the kernel connection outside the front end.
I have located the Kernel Program correctly on the remote computer. When I try starting a kernel over ssh in a terminal window with:
ssh username@remote.computer /path/to/math
Or
ssh username@remote.computer /path/to/MathKernel
After I enter the password to log in to the remote computer, I see that a kernel has been launched.
However, the same doesn't occur with the front end.
Are there any easy to understand tutorials/examples on launching remote kernels, without needing the GUI as I'd like to run scripts? I tried reading, this, for instance and the only thing that it did was make me panic as it was greek. I also read this but it's not an entirely similar problem
Here's a sample script that I used to launch local kernels and execute a simple NDSolve
command:
#!/usr/local/bin/MathematicaScript -script
CloseKernels[]
LaunchKernels[3]
Print["AbsoluteTiming reveals:" NDSolve[{y'[x] == y[x] Cos[x + y[x]],
y[0] == 1}, y, {x, 0, 30}]; // AbsoluteTiming ]
CloseKernels[]
This question may help answer the other question I linked in the first line.