Comment on Float ExposedComments−elvircrn11moGood stuff. Having fp8/fp4 would be great, too!−lifthrasiir11moThere are too many fp8/fp4 formats out there, many with different trade-offs. At least fp16 is standardized...−elvircrn11moYes, all of them would be great.−lifthrasiir11moHmm, you successfully nerd-sniped me. AFAIK there are at least:- 8-bit floating point types: (S1)E4M3 (finite only, has no-negative-zero variant), (S1)E5M2 (has no-negative-zero variant), E8M0- 6-bit floating point types: (S1)E2M3, (S1)E3M2- 4-bit floating point types: (S1)E2M1, NF4- Block floating point types: MXFP8 (E5M2/E4M3*32+E8M0), MXFP6 (E3M2/E2M3*32+E8M0), MXFP4 (E2M1*32+E8M0), NXFP [1][1] https://arxiv.org/pdf/2412.19821Do you have anything to add on?−elvircrn11moNothing to add, I was simply saying that it would be useful to have an FP8 toy website out there covering all of these formats.
Comments
Good stuff. Having fp8/fp4 would be great, too!
There are too many fp8/fp4 formats out there, many with different trade-offs. At least fp16 is standardized...
Yes, all of them would be great.
Hmm, you successfully nerd-sniped me. AFAIK there are at least:
- 8-bit floating point types: (S1)E4M3 (finite only, has no-negative-zero variant), (S1)E5M2 (has no-negative-zero variant), E8M0
- 6-bit floating point types: (S1)E2M3, (S1)E3M2
- 4-bit floating point types: (S1)E2M1, NF4
- Block floating point types: MXFP8 (E5M2/E4M3*32+E8M0), MXFP6 (E3M2/E2M3*32+E8M0), MXFP4 (E2M1*32+E8M0), NXFP [1]
[1] https://arxiv.org/pdf/2412.19821
Do you have anything to add on?
Nothing to add, I was simply saying that it would be useful to have an FP8 toy website out there covering all of these formats.