Add shapes for int8 gemm benchmark (#3093)

sgl-kernel/benchmark/bench_int8_gemm.py

+import argparse
+import copy
+import itertools
+
 import torch
 import triton
 from sgl_kernel import int8_scaled_mm
@@ -8,6 +12,56 @@ def to_int8(tensor: torch.Tensor) -> torch.Tensor:
     return torch.round(tensor.clamp(min=-128, max=127)).to(dtype=torch.int8)
 
 
+WEIGHT_SHAPES = {
+    "meta-llama/Llama-3.1-8B-Instruct": [
+        ([4096, 6144], 1),
+        ([4096, 4096], 0),
+        ([4096, 28672], 1),
+        ([14336, 4096], 0),
+    ],
+    "meta-llama/Llama-3.3-70B-Instruct": [
+        ([8192, 10240], 1),
+        ([8192, 8192], 0),
+        ([8192, 57344], 1),
+        ([28672, 8192], 0),
+    ],
+    "mistralai/Mistral-Large-Instruct-2407": [
+        ([12288, 14336], 1),
+        ([12288, 12288], 0),
+        ([12288, 57344], 1),
+        ([28672, 12288], 0),
+    ],
+    "Qwen/Qwen2.5-7B-Instruct": [
+        ([3584, 4608], 1),
+        ([3584, 3584], 0),
+        ([3584, 37888], 1),
+        ([18944, 3584], 0),
+    ],
+    "Qwen/Qwen2.5-32B-Instruct": [
+        ([5120, 7168], 1),
+        ([5120, 5120], 0),
+        ([5120, 55296], 1),
+        ([27648, 5120], 0),
+    ],
+    "Qwen/Qwen2.5-72B-Instruct": [
+        ([8192, 10240], 1),
+        ([8192, 8192], 0),
+        ([8192, 59136], 1),
+        ([29568, 8192], 0),
+    ],
+    "deepseek-ai/DeepSeek-Coder-V2-Lite-Instruct": [
+        ([2048, 3072], 1),
+        ([2048, 4096], 1),
+        ([2048, 2048], 0),
+        ([2048, 576], 0),
+        ([2048, 21888], 1),
+        ([10944, 2048], 0),
+        ([2048, 2816], 1),
+        ([1408, 2048], 0),
+    ],
+}
+
+
 @triton.testing.perf_report(
     triton.testing.Benchmark(
         x_names=["batch_size"],
@@ -22,8 +76,8 @@ def to_int8(tensor: torch.Tensor) -> torch.Tensor:
         args={},
     )
 )
-def benchmark(batch_size, provider):
-    M, N, K = batch_size, 4096, 8192
+def benchmark(batch_size, provider, N, K):
+    M = batch_size
     a = to_int8(torch.randn((M, K), device="cuda") * 5)
     b = to_int8(torch.randn((N, K), device="cuda").t() * 5)
     scale_a = torch.randn((M,), device="cuda", dtype=torch.float32)
@@ -52,4 +106,41 @@ def benchmark(batch_size, provider):
     return gbps(ms), gbps(max_ms), gbps(min_ms)
 
 
-benchmark.run(print_data=True, show_plots=True, save_path="bench_int8_res")
+def prepare_shapes(args):
+    KN_model_names = []
+    models_tps = list(itertools.product(args.models, args.tp_sizes))
+    for model, tp_size in models_tps:
+        assert model in WEIGHT_SHAPES
+        for KN, tp_split_dim in copy.deepcopy(WEIGHT_SHAPES[model]):
+            KN[tp_split_dim] = KN[tp_split_dim] // tp_size
+            KN.append(model)
+            KN_model_names.append(KN)
+    return KN_model_names
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--models",
+        nargs="+",
+        type=str,
+        default=["meta-llama/Llama-3.1-8B-Instruct"],
+        help="List of models to benchmark",
+    )
+    parser.add_argument(
+        "--tp-sizes",
+        nargs="+",
+        type=int,
+        default=[1],
+        help="List of tensor parallel sizes",
+    )
+    args = parser.parse_args()
+
+    KN_model_names = prepare_shapes(args)
+    for K, N, model_name in KN_model_names:
+        print(f"{model_name} N={N} K={K}: ")
+        benchmark.run(
+            print_data=True, show_plots=True, save_path="bench_int8_res", N=N, K=K
+        )
+
+    print("Benchmark finished!")