Multihead arch cutlass int8 qkv average#2035
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almaudoh wants to merge 89 commits intoLeelaChessZero:masterfrom
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Multihead arch cutlass int8 qkv average#2035almaudoh wants to merge 89 commits intoLeelaChessZero:masterfrom
almaudoh wants to merge 89 commits intoLeelaChessZero:masterfrom
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- skip connection add before layer norm now has a scaling factor (alpha) - replace conv layer of value and mlh heads with an embedding layer when attention body is used.
- also remove hardcoding.
- will be removed once it's fixed.
- also fix scratch space calculation.
- factor of sizeof(DataType) was missing.
get almaudoh's code
- to handle bigger/wider networks
1.3% improvement in BT2 on RTX 4090 15.6% improvement in test BT3 network with 64 heads.
- only tries doing the KQV dense layers in int8. - Accuracy seems reasonable. - Right now quantization isn't fused, and de-quantization is done with bias add. - Both the above can be possibly be fused with more work. - Also need to attempt INT8 for other dense layers (MHA dense, FFN1 and FFN2)
…rnels for clipping of inputs for non-int8 inference.
…mal fp16 weights.
…udoh/lc0 into multihead-arch-cutlass-int8
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This is a temporary PR to allow testing of a branch of cuda int8 that may not eventually be merged.