Auto balance CI tests (#4238)

.github/workflows/pr-test.yml

@@ -95,7 +95,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        range: [0-6, 6-15, 15-22, 22-32, 32-40, 40-48, 48-100]
+        part: [0, 1, 2, 3, 4, 5, 6]
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
@@ -109,11 +109,8 @@ jobs:
       - name: Run test
         timeout-minutes: 30
         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}
+          python3 run_suite.py --suite per-commit --auto-partition-id ${{ matrix.part }} --auto-partition-size 7
 
   unit-test-backend-2-gpu:
     needs: filter
@@ -340,7 +337,6 @@ jobs:
           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,