name: PR Test

on:
  push:
    branches: [ main ]
    paths:
      - "python/sglang/**"
      - "test/**"
      - "docs/**"
  pull_request:
    branches: [ main ]
    paths:
      - "python/sglang/**"
      - "test/**"
      - "docs/**"
  workflow_dispatch:
    inputs:
      version:
        description: "FlashInfer version"
        required: true
        type: choice
        default: 'release'
        options:
          - 'release'
          - 'nightly'

concurrency:
  group: pr-test-${{ github.ref }}
  cancel-in-progress: true

jobs:
  filter:
    runs-on: ubuntu-latest
    outputs:
      run_tests: ${{ steps.set_run_tests.outputs.run_tests }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      - name: Filter changes
        id: filter
        uses: dorny/paths-filter@v2
        with:
          filters: |
            docs:
              - 'docs/**'
            sglang:
              - 'python/sglang/**'
            test:
              - 'test/**'
      - name: Set run_tests output
        id: set_run_tests
        run: |
          if [ "${{ steps.filter.outputs.sglang }}" == "true" ] || [ "${{ steps.filter.outputs.test }}" == "true" ]; then
            echo "run_tests=true" >> $GITHUB_OUTPUT
          else
            echo "run_tests=false" >> $GITHUB_OUTPUT
          fi

  unit-test-frontend:
    needs: filter
    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
        github.event.pull_request.draft == false &&
        needs.filter.outputs.run_tests == 'true'
    runs-on: 1-gpu-runner
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install dependencies
        env:
          FLASHINFER_REPO: ${{ inputs.version == 'nightly' && 'https://flashinfer.ai/whl/nightly/cu124/torch2.5/flashinfer' || 'https://flashinfer.ai/whl/cu124/torch2.5/flashinfer' }}
        run: |
          bash scripts/ci_install_dependency.sh

      - name: Run test
        timeout-minutes: 10
        run: |
          cd test/lang
          python3 run_suite.py --suite per-commit

  unit-test-backend-1-gpu:
    needs: filter
    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
        github.event.pull_request.draft == false &&
        needs.filter.outputs.run_tests == 'true'
    runs-on: 1-gpu-runner
    strategy:
      fail-fast: false
      matrix:
        range: [0-6, 6-15, 15-22, 22-32, 32-40, 40-100]
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install dependencies
        env:
          FLASHINFER_REPO: ${{ inputs.version == 'nightly' && 'https://flashinfer.ai/whl/nightly/cu124/torch2.5/flashinfer' || 'https://flashinfer.ai/whl/cu124/torch2.5/flashinfer' }}
        run: |
          bash scripts/ci_install_dependency.sh

      - name: Run test
        timeout-minutes: 25
        run: |
          RANGE=${{ matrix.range }}
          range_begin=${RANGE%-*}
          range_end=${RANGE#*-}
          cd test/srt
          python3 run_suite.py --suite per-commit --range-begin ${range_begin} --range-end ${range_end}

  unit-test-backend-2-gpu:
    needs: filter
    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
        github.event.pull_request.draft == false &&
        needs.filter.outputs.run_tests == 'true'
    runs-on: 2-gpu-runner
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install dependencies
        env:
          FLASHINFER_REPO: ${{ inputs.version == 'nightly' && 'https://flashinfer.ai/whl/nightly/cu124/torch2.5/flashinfer' || 'https://flashinfer.ai/whl/cu124/torch2.5/flashinfer' }}
        run: |
          bash scripts/ci_install_dependency.sh

      - name: Test data parallelism (DP=2)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 test_data_parallelism.py

      - name: Test data parallelism attention (DP=2)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 test_dp_attention.py

      - name: Test update weights from distributed
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 test_update_weights_from_distributed.py

      - name: Test expert parallelism (EP=2)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 test_moe_ep.py

  performance-test-1-gpu-part-1:
    needs: filter
    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
        github.event.pull_request.draft == false &&
        needs.filter.outputs.run_tests == 'true'
    runs-on: 1-gpu-runner
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install dependencies
        env:
          FLASHINFER_REPO: ${{ inputs.version == 'nightly' && 'https://flashinfer.ai/whl/nightly/cu124/torch2.5/flashinfer' || 'https://flashinfer.ai/whl/cu124/torch2.5/flashinfer' }}
        run: |
          bash scripts/ci_install_dependency.sh

      - name: Benchmark single latency
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_one_batch.TestBenchOneBatch.test_bs1

      - name: Benchmark online latency
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_online_latency_default

      - name: Benchmark offline throughput
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_offline_throughput_default

      - name: Benchmark offline throughput (Non-streaming, small batch size)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_offline_throughput_non_stream_small_batch_size

      - name: Benchmark online latency (EAGLE)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_online_latency_eagle

  performance-test-1-gpu-part-2:
    needs: filter
    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
        github.event.pull_request.draft == false &&
        needs.filter.outputs.run_tests == 'true'
    runs-on: 1-gpu-runner
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install dependencies
        env:
          FLASHINFER_REPO: ${{ inputs.version == 'nightly' && 'https://flashinfer.ai/whl/nightly/cu124/torch2.5/flashinfer' || 'https://flashinfer.ai/whl/cu124/torch2.5/flashinfer' }}
        run: |
          bash scripts/ci_install_dependency.sh

      - name: Benchmark offline throughput (w/o RadixAttention)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_offline_throughput_without_radix_cache

      - name: Benchmark offline throughput (w/ Triton)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_offline_throughput_with_triton_attention_backend

      - name: Benchmark offline throughput (w/ FP8)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_offline_throughput_default_fp8

  performance-test-2-gpu:
    needs: filter
    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
        github.event.pull_request.draft == false &&
        needs.filter.outputs.run_tests == 'true'
    runs-on: 2-gpu-runner
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install dependencies
        env:
          FLASHINFER_REPO: ${{ inputs.version == 'nightly' && 'https://flashinfer.ai/whl/nightly/cu124/torch2.5/flashinfer' || 'https://flashinfer.ai/whl/cu124/torch2.5/flashinfer' }}
        run: |
          bash scripts/ci_install_dependency.sh

      - name: Benchmark single latency (TP=2)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_one_batch.TestBenchOneBatch.test_moe_tp2_bs1

      - name: Benchmark single latency + torch.compile (TP=2)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_one_batch.TestBenchOneBatch.test_torch_compile_tp2_bs1

      - name: Benchmark offline throughput (TP=2)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_moe_offline_throughput_default

      - name: Benchmark offline throughput (w/o RadixAttention) (TP=2)
        timeout-minutes: 10
        run: |
          cd test/srt
          python3 -m unittest test_bench_serving.TestBenchServing.test_moe_offline_throughput_without_radix_cache

  accuracy-test-1-gpu:
    needs: filter
    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
        github.event.pull_request.draft == false &&
        needs.filter.outputs.run_tests == 'true'
    runs-on: 1-gpu-runner
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install dependencies
        env:
          FLASHINFER_REPO: ${{ inputs.version == 'nightly' && 'https://flashinfer.ai/whl/nightly/cu124/torch2.5/flashinfer' || 'https://flashinfer.ai/whl/cu124/torch2.5/flashinfer' }}
        run: |
          bash scripts/ci_install_dependency.sh
          git clone https://github.com/merrymercy/human-eval.git
          cd human-eval
          pip install -e .

      - name: Evaluate accuracy
        timeout-minutes: 20
        run: |
          cd test/srt
          python3 test_eval_accuracy_large.py

  accuracy-test-2-gpu:
    needs: filter
    if: (github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request') &&
        github.event.pull_request.draft == false &&
        needs.filter.outputs.run_tests == 'true'
    runs-on: 2-gpu-runner
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install dependencies
        env:
          FLASHINFER_REPO: ${{ inputs.version == 'nightly' && 'https://flashinfer.ai/whl/nightly/cu124/torch2.5/flashinfer' || 'https://flashinfer.ai/whl/cu124/torch2.5/flashinfer' }}
        run: |
          bash scripts/ci_install_dependency.sh
          git clone https://github.com/merrymercy/human-eval.git
          cd human-eval
          pip install -e .

      - name: Evaluate accuracy (TP=2)
        timeout-minutes: 20
        run: |
          cd test/srt
          python3 test_moe_eval_accuracy_large.py

  finish:
    if: always()
    needs: [
      unit-test-frontend, unit-test-backend-1-gpu, unit-test-backend-2-gpu,
      performance-test-1-gpu-part-1, performance-test-1-gpu-part-2, performance-test-2-gpu,
      accuracy-test-1-gpu, accuracy-test-2-gpu
    ]
    runs-on: ubuntu-latest
    steps:
      - name: Finish
        run: echo "This is an empty step to ensure that all jobs are completed."