| """Shape sweep for W4A16 GEMM. | |
| Llama-style up_proj / qkv_proj shapes. Decode (M=1) is the bandwidth-bound | |
| case every inference engine optimizes -- it's the bar to beat. | |
| """ | |
| SHAPES = [ | |
| {"M": 1, "N": 12288, "K": 4096}, # decode: memory-bound on int4 weight read | |
| {"M": 32, "N": 12288, "K": 4096}, # small prefill: mixed regime | |
| {"M": 256, "N": 12288, "K": 4096}, # larger prefill: approaching compute | |
| {"M": 1, "N": 4096, "K": 4096}, # decode: square shape | |
| {"M": 16, "N": 14336, "K": 4096}, # speculative-decode-ish | |
| ] | |