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HanGuo97 / flute

Fast Matrix Multiplications for Lookup Table-Quantized LLMs
https://arxiv.org/abs/2407.10960
Apache License 2.0
159 stars 5 forks source link

Error in flute.utils.pack #7

Open KenRanmzes opened 3 weeks ago

KenRanmzes commented 3 weeks ago

Traceback (most recent call last): File "/mnt/share/cq8/kennxiao/code/NF4Quant/test.py", line 41, in prepare_model_flute( File "/data/miniconda3/envs/env-3.9.2/lib/python3.9/site-packages/torch/utils/_contextlib.py", line 116, in decorate_context return func(*args, **kwargs) File "/mnt/share/cq8/kennxiao/code/NF4Quant/flute_convert.py", line 175, in prepare_model_flute _replace_linear(name, module) File "/mnt/share/cq8/kennxiao/code/NF4Quant/flute_convert.py", line 173, in _replace_linear _replace_linear(child_full_name, child) File "/mnt/share/cq8/kennxiao/code/NF4Quant/flute_convert.py", line 173, in _replace_linear _replace_linear(child_full_name, child) File "/mnt/share/cq8/kennxiao/code/NF4Quant/flute_convert.py", line 147, in _replace_linear Q = flute.utils.pack( File "/mnt/share/cq8/kennxiao/dev/flute/flute/utils.py", line 276, in pack template_id = TEMPLATE_TUNED_WITHOUT_M_CONFIGS[( KeyError: (108, 2, 128, 3072, 256, 'torch.float16')

HanGuo97 commented 2 weeks ago

Thanks for the feedback! The problem is likely because 2-bit quantization is not supported in the current build. Is 2-bit an important feature in your use case? If so, I can provide a 2-bit build.

KenRanmzes commented 2 weeks ago

Thanks for the feedback! The problem is likely because 2-bit quantization is not supported in the current build. Is 2-bit an important feature in your use case? If so, I can provide a 2-bit build.

yes, 2Bits is important for me. Additionally , I found that the shape 3072, 256 is not support in TEMPLATE_TUNED_WITHOUT_M_CONFIGS

HanGuo97 commented 2 weeks ago

Got it, thanks for letting us know!

Adding 2-bit support is relatively easy, but it seems like the real problem is the lack of shape support for your use cases. This is part of a bigger feature we are trying to release. Currently, we have fixed shapes support, and we tuned them ourselves. We are hoping to get a just-in-time tuning feature out soon, and that should resolve your problem.

Unfortunately, this will likely take a few days and won't be a quick fix on our end. If 2-bit feature alone is useful to you, I can try to get that out relatively sooner. Let me know!