Here is the question:
"I'm bulding a project for a cluster that consists on 64 machines running each 2x Dual Core AMD Opteron with 2GB of memory per core (8GB per machine). We already have everything else accounted for except for the software. We have serious doubts on what would be best for the OS and the cluster management software. The OS has to be open source. Please give me some advice on what you think you be the best performance solution for it. It doesn''t matter if it's not free. "
Also, if anyone has any advice on cluster management software, please send it. I am trying to build a knowldgebase of different opinions on software.