3 ms·
POWER can be configured for SMT4 or SMT8. SMT8 was the default for P9 however, for SAP on P10, it appears that the recommendation is now to use SMT4 instead.
by newman314 4y ago
POWER can be configured for SMT4 or SMT8.
SMT8 was the default for P9 however, for SAP on P10, it appears that the recommendation is now to use SMT4 instead.
Interestingly, Google just found an older comment that I made awhile ago. https://news.ycombinator.com/item?id=30354228 https://news.ycombinator.com/item?id=30354228
- p_l 4y agoPhysically the POWER 8 & 9 chips are build in SMT4 and SMT8 configurations (the resulting dies are slightly different). Then on top of that, you can configure the actual number of SMT from 1 to chip maximum, at runtime.