Re:Pico Cray – Small scale distributed computing
by mechagodzilla on Friday April 21, 2023 @10:17AM
(#35654117)
A Cray-1 ran at 80 MHz, and with careful coding could sustain about 2 double-precision floating point operations per cycle - so 160 MFLOPS. Looking at linpack benchmarks, it looks like it's right around a raspberry pi 2 running at 1 GHz (169 DP MFLOPS), and a little worse than a Raspberry Pi 3 at 180 MFLOPS.
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Re:Pico Cray – Small scale distributed computing
by dfox on Friday April 21, 2023 @09:40PM
(#35662492)
The 160MFlOps of Cray-1 is the theoretical maximum of the implementation (as are the whatever FlOp/s numbers quoted by GPU vendors), while the numbers for Linux capable Broadcom SoCs in RaspberryPis are results from LINPACK. The Linpack benchmark is not exactly a representation of what you would compute on a supercomputer, but even this kind of semi-synthetic benchrmark will cause the Cray-1 to score significantly lower than the theoretical 160MFlOp/s.