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Those were likely former Rackable Systems clusters, which bought and renamed itself SGI. Sadly, I think that all that's left of the old SGI is the name. Even th
by mbreese 10y ago
Those were likely former Rackable Systems clusters, which bought and renamed itself SGI. Sadly, I think that all that's left of the old SGI is the name. Even the HPC magic they had I believe originally came from Cray -- another name from a bygone era.
- rbanffy 10y agoCray still builds fairly impressive single-image Limux machines. Not as pretty as their forerunners, but impressive on their own.
- mbreese 10y agoYou're right... I was thinking back to 2000's SGI. It's hard to track of when / where these companies are. SGI buys Cray, SGI spins Cray out to Tera, Rackable buys SGI, HP splits, HPE buys SGI... It's all crazy. But yes, Cray still has some impressive gear independently.
- pinewurst 10y agoThey are for sure not single image machines. Each node is running its own kernel, sees only its own resources and is scheduled by the system-wide batch scheduler node. Running across nodes requires MPI to tie things together (tenuously) at the application level. If they are impressive, it's only because of physical size and aggregate resources available, not because there's the least bit of magic involved. It's the usual Intel+-NVidia CPUs/chipsets/etc. At the current time, it's mostly their legacy proprietary interconnect.
- rbanffy 10y agoCould I have confused those with, oh the irony, some SGI machine? I remember someone had single-image boxes with up to a thousand CPUs. I assumed it was something derived from Cray's T3E.