calcpage wrote:
I think I used parallelKNOPPIX in the past by simply booting several CDs. OK, maybe I'll try the cross-over cable. Do I just connect 2 ethernet cards from 2 distinct PCs with an ethernet cable or do I need a special cable or port? I'd like to get all 50 cores running, but this should get me 4.
Yes, ParallelKnoppix would let you do that, but PelicanHPC doesn't. To do what I say, you need a crossover cable, which is not an ordinary ethernet cable. They are available in most computer stores.
calcpage wrote:
I have the KNOPPIX DVD installed to an hdd partition. So my installation is very simple but it includes Octave. We simply added public key authentication to every node and some batch files to split up jobs. We do not have NFS running nor do I have MPI installed. Do you mean I can simply copy code from your CD and I should be able to get it to work on my setup?
The octave code will work on your setup, but to be able to compile MPITB and be able to use Octave in parallel, you need to install MPI. Without MPI, the setup_econometrics script will crash when it tries to compile MPITB.
calcpage wrote:
The article is similar to your online tutorial so it seems accurate as far as I can tell (not ever getting pelicanHPC to boot its hard for me to judge)....
Ahh, ok. But the way, if you just start PelicanHPC on a single machine, and then type "lamboot" you will be able to use Octave on both cores. With a crossover cable you could get a second machine into the mix. For more than that I recommend trying to figure out what's up with netboot. When I need to set up a cluster when the normal network has a dhcp server that can't be turned off, I use my own cables and switch. Nothing like physical isolation to guarantee that you won't get interference.
Cheers, M.
