fix: make PerGroupCodebook reachable and lossless on packed FP4 - #3

Merged

khwstolle merged 7 commits into

fix/fp4-nibble-descriptor

Aug 18, 2026

Commits on Aug 17, 2026

fix(core): give packed FP4 planes nibble width and the packed flag
khwstolle
committed
5d765cc
fix(core): route the compressor's source descriptor through one dtype map
khwstolle
committed
b6705c9

Commits on Aug 18, 2026

fix(codecs): stop PerGroupCodebook dropping the high nibble of every byte
khwstolle
committed
2a68958
fix(core): keep packed-FP4 length in storage units, fit codebooks on real nibbles
khwstolle
committed
815a521
fix(codecs): assert pack_nibbles gets an even count instead of truncating
khwstolle
committed
3e70bc6
fix(codecs): make the pack_nibbles guard hold in release builds
khwstolle
committed
18cc5b9
fix(codecs): keep PerGroupCodebook on expanded planes, one convention throughout
khwstolle
committed
d416782