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Phi is dead. The next NERSC computer is GPUs. Not sure what Argonne is doing but there’s no reason to think it won’t be GPUs. The only reason Phi/KNL made sense
by batbomb 8y ago
Phi is dead. The next NERSC computer is GPUs. Not sure what Argonne is doing but there’s no reason to think it won’t be GPUs. The only reason Phi/KNL made sense was because it seemed like a conservative choice when GPUs were more exotic, which may have been okay if Intel didn’t have the crazy yield problems they had. FPGAs don’t make sense because the conservative choice at this point is GPU. I don’t think any of the leading compute facilities have the stomach for a new technology like this, especially from intel.
- llukas 8y agoCmon it wasn't just yield problems. Premise that you can just recompile CPU code and it would run quickly on Phi was false.
- sanxiyn 8y agoIt's a pity. Intel does have a compiler that works great for Xeon Phi: ISPC. Alas, it seems Intel was never serious about ISPC.
- gbrown_ 8y ago> The next NERSC computer is GPUs. Got a source on this? I've not seen an official mention of what sort of architecture NERSC-9 will be. > Not sure what Argonne is doing but there’s no reason to think it won’t be GPUs. It will be a future Intel processor [1]. [1] https://www.hpcwire.com/2017/09/27/us-coalesces-plans-first-exascale-supercomputer-aurora-2021/ https://www.hpcwire.com/2017/09/27/us-coalesces-plans-first-...
- batbomb 8y agoNothing I can link to, but that information has been shared to DOE labs and projects relying on large NERSC allocations.