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Crypto doesn't do floating point. Media transcoding does SIMD, but not usually not floating point.
by wtallis 7y ago
Crypto doesn't do floating point. Media transcoding does SIMD, but not usually not floating point.
- ip26 7y agoFair enough wrt media. However SIMD e.g. MMX is done in the floating point unit (https://softpixel.com/~cwright/programming/simd/mmx.php https://softpixel.com/~cwright/programming/simd/mmx.php) I thought bitcoin mining was floating point, and that was why GPUs were so adept.
- Dylan16807 7y agoMMX is obsolete. SSE/AVX has its own set of registers. It can do floating point and integer operations. It would not be correct to refer to it as a floating point unit. GPUs are good at mining because they can do so many calculations in parallel. They're just as capable of integer operations as the SIMD units on a CPU.
- wtallis 7y agoMMX was integer SIMD that re-used the FPU register file, but was not doing floating-point operations.