[feature] enable pre compile jit deep_gemm (#5580)

python/sglang/compile_deep_gemm.py

@@ -0,0 +1,136 @@
+"""
+Compile DeepGEMM Kernels for a model with specify server arguments
+
+This script launches a server for capturing DeepGEMM calls and then compiles the kernels.
+It accepts server arguments (the same as launch_server.py).
+
+Usage:
+python3 -m sglang.compile_deep_gemm --model deepseek-ai/DeepSeek-V3 --tp 8 --trust-remote-code
+
+"""
+
+import argparse
+import dataclasses
+import multiprocessing
+import os
+import time
+
+import requests
+
+from sglang.srt.entrypoints.http_server import launch_server
+from sglang.srt.managers.io_struct import GenerateReqInput
+from sglang.srt.managers.tokenizer_manager import TokenizerManager
+from sglang.srt.server_args import ServerArgs
+from sglang.srt.utils import kill_process_tree
+from sglang.srt.warmup import warmup
+
+multiprocessing.set_start_method("spawn", force=True)
+
+# Reduce warning
+os.environ["SGL_IN_DEEP_GEMM_PRE_COMPILE_STAGE"] = "1"
+
+
+@dataclasses.dataclass
+class CompileArgs:
+    timeout: int = 3600
+
+    @staticmethod
+    def add_cli_args(parser: argparse.ArgumentParser):
+        parser.add_argument("--timeout", type=int, default=CompileArgs.timeout)
+
+    @classmethod
+    def from_cli_args(cls, args: argparse.Namespace):
+        # use the default value's type to cast the args into correct types.
+        attrs = [(attr.name, type(attr.default)) for attr in dataclasses.fields(cls)]
+        return cls(
+            **{attr: attr_type(getattr(args, attr)) for attr, attr_type in attrs}
+        )
+
+
+@warmup("compile-deep-gemm")
+async def warm_up_compile(tokenizer_manager: TokenizerManager):
+    print("\nGenerate warm up request for compiling DeepGEMM...\n")
+    generate_req_input = GenerateReqInput(
+        input_ids=[0, 1, 2, 3],
+        sampling_params={
+            "temperature": 0.0,
+            "max_new_tokens": 8,
+            "ignore_eos": True,
+        },
+    )
+    await tokenizer_manager.generate_request(generate_req_input, None).__anext__()
+
+
+def launch_server_internal(server_args):
+    try:
+        launch_server(server_args)
+    except Exception as e:
+        raise e
+    finally:
+        kill_process_tree(os.getpid(), include_parent=False)
+
+
+def launch_server_process_and_send_one_request(
+    server_args: ServerArgs, compile_args: CompileArgs
+):
+    proc = multiprocessing.Process(target=launch_server_internal, args=(server_args,))
+    proc.start()
+    base_url = f"http://{server_args.host}:{server_args.port}"
+    timeout = compile_args.timeout
+
+    start_time = time.time()
+    while time.time() - start_time < timeout:
+        try:
+            headers = {
+                "Content-Type": "application/json; charset=utf-8",
+            }
+            response = requests.get(f"{base_url}/v1/models", headers=headers)
+            if response.status_code == 200:
+                return proc
+        except requests.RequestException:
+            pass
+        time.sleep(10)
+    raise TimeoutError(
+        "DeepGEMM Kernels compilation timeout."
+        "\n\nFeel free and please restart the command."
+    )
+
+
+def refine_server_args(server_args: ServerArgs, compile_args: CompileArgs):
+    # Disbale cuda graph and torch compile to save time
+    server_args.disable_cuda_graph = True
+    server_args.enable_torch_compile = False
+    print(f"Disable CUDA Graph and Torch Compile to save time...")
+
+    # Set watchdog timeout to compile_args.timeout because compilation will take a long time
+    server_args.watchdog_timeout = compile_args.timeout
+    server_args.warmups = "compile-deep-gemm"
+
+
+def run_compile(server_args: ServerArgs, compile_args: CompileArgs):
+    print(
+        "Begin DeepGEMM Kernels compilation...\n"
+        "It may take a long time and timeout maybe raised "
+        "while the compilation is still in progress.\n"
+        "Just feel free to restart the command "
+        "until the compilation is fully finished.\n"
+    )
+
+    proc = launch_server_process_and_send_one_request(server_args, compile_args)
+
+    kill_process_tree(proc.pid)
+
+    print("\nDeepGEMM Kernels compilation finished successfully.")
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    ServerArgs.add_cli_args(parser)
+    CompileArgs.add_cli_args(parser)
+    args = parser.parse_args()
+    server_args = ServerArgs.from_cli_args(args)
+    compile_args = CompileArgs.from_cli_args(args)
+
+    refine_server_args(server_args, compile_args)
+
+    run_compile(server_args, compile_args)