(cache) PS3Cluster Guide : Resources Page

Resources (Q&A and Errata)

Q: Why the PS3?

A: In short, the Cell Processor ‘packs a punch’. One of the authors (Khanna) estimates that his MPI computations run much faster than on desktop workstation chipsets, and that his original 8 PS3 (i.e. 64 core) Cell cluster had comparable if not better performance to a 200 Node IBM Blue Gene system.

Q: Everything seems to be installed and working locally, but I can't seem to get the cluster to return from all nodes.

A: The number of processes fed to mpirun (say a default of 16) is the number of slots used by the cluster at runtime. This number seems to have to be equal to or greater than the number of allocated slots in the openmpi-default-hostfile (or things seem to get out of sync). For the PS3/Cell this includes a process for each of the cores in the processor.

Q: How do I boot into my PS3 gaming environment and or how do I uninstall Linux from my PS3?

A: Go to the PS3 game system by typing "boot-game-os" (Fedora 6) or "ps3-boot-game-os" (Fedora 8). When you are back to the default PS3 environment, in "Settings/System-Settings", go to "Format utility". Format the disk, giving the entire drive space back to the PS3 environment. Meanwhile, a hard reset is performed by holding the PS3 power button down until it beeps 3 times then turning the rear power switch off after normal shutdown. This resets the system to the game OS.

Q: If you're a free site and research group, why do you guys have Google Ads?

A: Though this is a free guide, obviously HPC research is an expensive effort in time and hardware. All income from the site will go exclusively to our SuperComputing /Clustering efforts at the University of Massachusetts: Dartmouth. (To make a donation to the school, feel free to contact one of us.)