Goth Zagog-Thou wrote:I want to build a Beowulf cluster using those. The raw processing power would run Warzone VERY nicely, methinks.
I have around 20 PCs older than the great pyramids, and wanted to put those into a Beowulf array to try and get some respectable horsepower.
The electrical power vs processing power would factor into this scenario. If they are Pentium-II 700's or better with 512mb RAM (1998-era) then chances are it'll work fine. Each machine would need a new network card (10/100/1000 .. easily obtained -- probably $20 US each) and something like a 60gb hard disk. The kicker would be the Switch used to connect them together. THAT component would need to be able to handle the traffic, so you'd need a 1000/10000 variety and those are NOT cheap.
Then a flavour of Linux with the right kernel (Pentium-II does NOT support PAE, so it would need to be a specialized kernel). A lot to take into account but I think it would work fine ... and then we can get some benchmarks for Cluster Gaming with Warzone.
What i experienced is that the main problem with those old harddrives is usually their speed; replacing any of those with an 80gb SATA drive on an external PCI controller seems to be giving a huge boost (as long as you're able to find a good controller, my attempt with VIA VT6420 was a horrible PITA; you can still use the old disc for /boot/, if you can't get your BIOS to boot from an external controller) Not sure how much this affects your cluster idea, i was just talking about user experience on a single machine.
Not suprisingly, the Raspberry Pi has already inspired work early this year on really cheap, parallel processing, super computing (aka, Beowulf cluster).
Here's a small sampling of the main efforts for those interested in such a project of their own...