can this support lower bit quant?

[vince62s]

3-bit ?
2-bit ?

[ChenMnZ]

I am also curious about this.

[efrantar]

Hi,

currently Marlin supports only a limited set of quantization options (4bit + groupsize 128), selected for a good accuracy/speed trade-off, but therefore at very close to peak efficiency in many cases, including larger batchsizes.

That being said, Marlin can definitively be a good starting point for developing highly efficient kernels for other bitwidths or quantization schemes.

[nivibilla]

How can one go about making it work for 8bit gptq?