adapt to sglang v0.5.2rc1 on dcu

benchmark/ceval/README.md

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+## Download data
+```
+git lfs clone https://huggingface.co/datasets/ceval/ceval-exam
+```
+
+## Run benchmark
+
+### Benchmark sglang
+```
+python -m sglang.launch_server --model-path ramblingpolymath/Qwen3-32B-W8A8 --port 30000
+```
+
+```
+python3 bench_sglang.py
+```

benchmark/ceval/bench_sglang.py

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+import argparse
+import json
+import os
+import random
+import re
+import time
+
+import numpy as np
+from datasets import load_dataset
+
+from sglang.api import set_default_backend
+from sglang.test.test_utils import (
+    add_common_sglang_args_and_parse,
+    select_sglang_backend,
+)
+
+choices = ["A", "B", "C", "D"]
+
+
+def get_one_example(line, include_answer):
+    res = line["question"]
+    res += f"\nA. {line['A']}"
+    res += f"\nB. {line['B']}"
+    res += f"\nC. {line['C']}"
+    res += f"\nD. {line['D']}"
+
+    if include_answer:
+        res += f"\nAnswer: {line['answer']} \n\n"
+    return res
+
+
+def get_few_shot_examples(lines):
+    res = ""
+    for line in lines:
+        res += get_one_example(line, True) + "\n\n"
+    return res
+
+
+def get_answer_value(response):
+    pattern = r"(Answer:|answer:|答案是|答案是:|正确答案是:|答案:|Assistant:)\s*([A-D])(?![\w])"
+    match = re.search(pattern, response)
+
+    if match:
+        return match.group(2)
+
+    return random.choice(choices)
+
+
+def main(args):
+    # Read data && Construct prompts
+    arguments = []
+    labels = []
+    examples = "examples:\n"
+    data_path = args.data_path
+    for subject in os.listdir(data_path):
+        subject_path = os.path.join(data_path, subject)
+        if os.path.isdir(subject_path) and subject != ".git":
+            dataset = load_dataset(data_path, name=subject)
+            dev_lines_temp = dataset["dev"]
+            val_lines_temp = dataset["val"]
+            few_shot_examples = get_few_shot_examples(dev_lines_temp, subject)
+            examples += f"{few_shot_examples}"
+            for val_line in val_lines_temp:
+                arguments.append(
+                    {
+                        "examples": few_shot_examples,
+                        "question": get_one_example(val_line, False),
+                    }
+                )
+                labels.append(val_line["answer"])
+
+    #####################################
+    ######### SGL Program Begin #########
+    #####################################
+
+    import sglang as sgl
+
+    @sgl.function
+    def few_shot_ceval(s, examples, question):
+        s += examples + question + sgl.gen("Answer")
+
+    #####################################
+    ########## SGL Program End ##########
+    #####################################
+
+    num_questions = args.num_questions if args.num_questions else len(arguments)
+
+    # Select backend
+    set_default_backend(select_sglang_backend(args))
+
+    # Run requests
+    tic = time.perf_counter()
+    states = few_shot_ceval.run_batch(
+        arguments[:num_questions],
+        temperature=0,
+        num_threads=args.parallel,
+        progress_bar=True,
+    )
+    latency = time.perf_counter() - tic
+
+    preds = [get_answer_value(states[i]["Answer"]) for i in range(num_questions)]
+
+    # Compute accuracy
+    acc = np.mean(np.array(preds) == np.array(labels[:num_questions]))
+
+    # Compute speed
+    num_output_tokens = sum(
+        s.get_meta_info("Answer")["completion_tokens"] for s in states
+    )
+    output_throughput = num_output_tokens / latency
+
+    # Print results
+    print(f"Accuracy: {acc:.3f}")
+    print(f"Latency: {latency:.3f} s")
+    print(f"Output throughput: {output_throughput:.3f} token/s")
+
+    # Write results
+    with open(args.result_file, "a") as fout:
+        value = {
+            "task": "ceval",
+            "backend": args.backend,
+            "num_gpus": 1,
+            "latency": round(latency, 3),
+            "accuracy": round(acc, 3),
+            "num_requests": args.num_questions,
+            "other": {
+                "parallel": args.parallel,
+            },
+        }
+        fout.write(json.dumps(value) + "\n")
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--data-path", type=str, default="ceval-exam")
+    parser.add_argument("--num-questions", type=int, default=None)
+    args = add_common_sglang_args_and_parse(parser)
+    main(args)