gguf-py: reduce peak RAM during convert by streaming dtype casts#15648

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igloo58 wants to merge 2 commits intoggml-org:masterfrom

igloo58:fix/gguf-stream-cast

Commits on Aug 28, 2025

gguf-py: stream dtype casts during GGUF write; add GGUF_CAST_CHUNK_MB env knob; remove duplicate imports
igloo58
committed

Commits on Sep 1, 2025

gguf-py: stream dtype casts (default 64 MiB), add writer-side path + debug logs
igloo58
committed