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May 6, 2021 Archives
Thursday, May 6, 2021
THE HAPPENING WORLD: A CPU Chip Bigger than Your Head: Cerebras Wafer Scale Engine 2
Cerebras Wafer Scale Engine 2 specifications:
- 850,000 cores
- 40 Gb on-chip SRAM
- 7 nm TSMC process
- 2.6 trillion transistors
- 46,225 mm² silicon area;
- 20 Pb/sec memory bandwidth
- 220 Pb/sec on-chip interconnect bandwidth
- 23 kW power dissipation (water cooled)
The wafer is designed with spare cores so that those with defects can be routed around, and hence fabrication yield is 100%.
Posted at
15:02
CONTINUITY: Garbage Then, Garbage Now—Microsoft Windows 1.04
The 640 Kb BIOS memory test at the start ran for 48 seconds on this IBM PC/XT clone (4.77 MHz Intel 8088). Testing the 16 Gb RAM installed on many current PCs at this speed would take more than two weeks.
Posted at
12:14