4 ms·
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 b
by mechagodzilla 3y ago
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.
- dfox 3y agoThe 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.