[CI] add deepseek w4a8 test on h20 ci (#7758)

.github/workflows/pr-test-h20.yml

+name: PR Test (H20)
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+    inputs:
+      version:
+        required: true
+        type: choice
+        default: 'release'
+        options:
+          - 'release'
+          - 'nightly'
+
+concurrency:
+  group: pr-test-h20-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  check-changes:
+    runs-on: ubuntu-latest
+    outputs:
+      src: ${{ steps.filter.outputs.src }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Detect file changes
+        id: filter
+        uses: dorny/paths-filter@v3
+        with:
+          filters: |
+            src:
+              - "python/sglang/srt/models/deepseek*"
+              - "python/sglang/srt/layers/moe/**"
+              - ".github/workflows/pr-test-h20.yml"
+
+  per-commit-8-gpu-h20:
+    needs: [check-changes]
+    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
+        github.event.pull_request.draft == false &&
+        needs.check-changes.outputs.src == 'true'
+    runs-on: 8-gpu-h20
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: |
+          bash scripts/ci/ci_install_dependency.sh
+
+      - name: Run test
+        timeout-minutes: 20
+
+        run: |
+          cd test/srt
+          python3 run_suite.py --suite per-commit-8-gpu-h20
+
+  pr-test-finish:
+    needs: [
+      check-changes,
+      per-commit-8-gpu-h20,
+    ]
+    if: needs.check-changes.outputs.src == 'true'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check all dependent job statuses
+        run: |
+          results=(${{ join(needs.*.result, ' ') }})
+          for result in "${results[@]}"; do
+            if [ "$result" = "failure" ] || [ "$result" = "cancelled" ]; then
+              echo "Job failed with result: $result"
+              exit 1
+            fi
+          done
+          echo "All jobs completed successfully"
+          exit 0

python/sglang/test/test_utils.py

@@ -78,6 +78,7 @@ DEFAULT_AWQ_MOE_MODEL_NAME_FOR_TEST = (
     "hugging-quants/Mixtral-8x7B-Instruct-v0.1-AWQ-INT4"
 )
 DEFAULT_ENABLE_THINKING_MODEL_NAME_FOR_TEST = "Qwen/Qwen3-30B-A3B"
+DEFAULT_DEEPSEEK_W4AFP8_MODEL_FOR_TEST = "Barrrrry/DeepSeek-R1-W4AFP8"
 
 # Nightly tests
 DEFAULT_MODEL_NAME_FOR_NIGHTLY_EVAL_TP1 = "meta-llama/Llama-3.1-8B-Instruct,mistralai/Mistral-7B-Instruct-v0.3,deepseek-ai/DeepSeek-Coder-V2-Lite-Instruct,google/gemma-2-27b-it"

test/srt/quant/test_w4a8_deepseek_v3.py

+import unittest
+from types import SimpleNamespace
+
+import requests
+
+from sglang.srt.utils import kill_process_tree
+from sglang.test.few_shot_gsm8k import run_eval as run_eval_few_shot_gsm8k
+from sglang.test.test_utils import (
+    DEFAULT_DEEPSEEK_W4AFP8_MODEL_FOR_TEST,
+    DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+    DEFAULT_URL_FOR_TEST,
+    CustomTestCase,
+    is_in_amd_ci,
+    is_in_ci,
+    popen_launch_server,
+    try_cached_model,
+    write_github_step_summary,
+)
+
+
+class TestDeepseekV3W4afp8(CustomTestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.model = try_cached_model(DEFAULT_DEEPSEEK_W4AFP8_MODEL_FOR_TEST)
+        cls.base_url = DEFAULT_URL_FOR_TEST
+        other_args = ["--trust-remote-code", "--tp", "8", "--ep-size", "8"]
+        cls.process = popen_launch_server(
+            cls.model,
+            cls.base_url,
+            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+            other_args=other_args,
+        )
+
+    @classmethod
+    def tearDownClass(cls):
+        kill_process_tree(cls.process.pid)
+
+    def test_gsm8k(self):
+        args = SimpleNamespace(
+            num_shots=5,
+            data_path=None,
+            num_questions=1200,
+            parallel=1200,
+            max_new_tokens=512,
+            host="http://127.0.0.1",
+            port=int(self.base_url.split(":")[-1]),
+        )
+        metrics = run_eval_few_shot_gsm8k(args)
+        print(f"Eval accuracy of GSM8K: {metrics=}")
+
+        self.assertGreater(metrics["accuracy"], 0.92)
+
+
+class TestDeepseekV3W4Afp8Mtp(CustomTestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.model = try_cached_model(DEFAULT_DEEPSEEK_W4AFP8_MODEL_FOR_TEST)
+        cls.base_url = DEFAULT_URL_FOR_TEST
+        other_args = [
+            "--tp",
+            "8",
+            "--trust-remote-code",
+            "--ep-size",
+            "8",
+            "--cuda-graph-bs",
+            "256",
+            "--disable-radix-cache",
+            "--speculative-algorithm",
+            "EAGLE",
+            "--speculative-num-steps",
+            "3",
+            "--speculative-eagle-topk",
+            "2",
+            "--speculative-num-draft-tokens",
+            "4",
+        ]
+        if not is_in_amd_ci():
+            other_args += ["--mem-frac", "0.7"]
+        cls.process = popen_launch_server(
+            cls.model,
+            cls.base_url,
+            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+            other_args=other_args,
+        )
+
+    @classmethod
+    def tearDownClass(cls):
+        kill_process_tree(cls.process.pid)
+
+    def test_gsm8k(
+        self,
+    ):
+        args = SimpleNamespace(
+            num_shots=5,
+            data_path=None,
+            num_questions=200,
+            max_new_tokens=512,
+            parallel=128,
+            host="http://127.0.0.1",
+            port=int(self.base_url.split(":")[-1]),
+        )
+        metrics = run_eval_few_shot_gsm8k(args)
+        print(f"{metrics=}")
+
+        server_info = requests.get(self.base_url + "/get_server_info")
+        avg_spec_accept_length = server_info.json()["internal_states"][0][
+            "avg_spec_accept_length"
+        ]
+        print(f"{avg_spec_accept_length=}")
+
+        if is_in_ci():
+            write_github_step_summary(
+                f"### test_gsm8k (deepseek-v3 mtp)\n"
+                f'{metrics["accuracy"]=:.3f}\n'
+                f"{avg_spec_accept_length=:.2f}\n"
+            )
+            self.assertGreater(metrics["accuracy"], 0.935)
+            self.assertGreater(avg_spec_accept_length, 2.9)
+
+
+if __name__ == "__main__":
+    unittest.main()

test/srt/run_suite.py

@@ -143,6 +143,9 @@ suites = {
     "per-commit-8-gpu-deepep": [
         TestFile("ep/test_deepep_large.py", 338),
     ],
+    "per-commit-8-gpu-h20": [
+        TestFile("quant/test_w4a8_deepseek_v3.py", 371),
+    ],
     "nightly": [
         TestFile("test_nightly_gsm8k_eval.py"),
     ],