Llama Is Expensive

Re:Llama Is Expensive by amanrs on Thursday July 20, 2023 @06:29PM (#36807628)

The key misconception about many quantization methods is that lower precision = better speed.

I believe GPT-Q is not much faster than bf16 from skimming the AWQ paper - https://arxiv.org/pdf/2306.00978.pdf

It's 3x faster for a batch size of 1, but that's still over 10x more expensive than gpt-3.5

For larger batch sizes, bf16 costs dip below 3-bit quantized.

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Re:Llama Is Expensive by brucethemoose2 on Friday July 21, 2023 @01:36AM (#36810342)

exLlama supports batching, and I believe it claws back much the throughput loss from quantization (depending on the exact settings you use to quantize).

And as said below, whatever throughput you lose is going to be massively offset by the ability to use smaller single GPUs.

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