Re: [Beowulf] Hyperthreading and 'OS jitter'

​​ > > Re: having a specialized, low-power core, this is clearly something that's > already been successful in the mobile device space. The big.LITTLE > ARM architecture is > designed for this kind of thing and has been quite successful. Certainly, >

Re: [Beowulf] Hyperthreading and 'OS jitter'

If I recall correctly, IBM did just what you're describing with the BlueGene CPUs. I believe those were 18-core parts, with 2 of the cores being reserved to run the OS and as a buffer against jitter. That left a nice, neat power-of-2 amount of cores for compute tasks. Re: having a specialized, low