misc: Add HACC GPU tests (#258)

This adds the HACC GPU tests to be run weekly

.github/workflows/gpu-tests.yaml

@@ -0,0 +1,60 @@
+# This workflow runs all of the very-long tests within main.py
+
+name: Weekly Tests
+
+on:
+  # Runs every Sunday from 7AM UTC
+  schedule:
+    - cron:  '00 7 * * 6'
+  # Allows us to manually start workflow for testing
+  workflow_dispatch:
+
+jobs:
+  build-gem5:
+    runs-on: [self-hosted, linux, x64, build]
+    container: gcr.io/gem5-test/gcn-gpu:latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          # Scheduled workflows run on the default branch by default. We
+          # therefore need to explicitly checkout the develop branch.
+          ref: develop
+      - name: Build gem5
+        run: scons build/GCN3_X86/gem5.opt -j $(nproc) --ignore-style
+      - uses: actions/upload-artifact@v3
+        with:
+          name: weekly-test-${{ github.run_number }}-attempt-${{ github.run_attempt }}-gem5-build-gcn3
+          path: build/GCN3_X86/gem5.opt
+          retention-days: 5
+      - run: echo "This job's status is ${{ job.status }}."
+
+  HACC-tests:
+    runs-on: [self-hosted, linux, x64, build]
+    container: gcr.io/gem5-test/gcn-gpu:latest
+    needs: build-gem5
+    timeout-minutes: 120 # 2 hours
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          # Scheduled workflows run on the default branch by default. We
+          # therefore need to explicitly checkout the develop branch.
+          ref: develop
+      - uses: actions/download-artifact@v3
+        with:
+          name: weekly-test-${{ github.run_number }}-attempt-${{ github.run_attempt }}-gem5-build-gcn3
+          path: build/GCN3_X86
+      - run: chmod u+x build/GCN3_X86/gem5.opt
+      - name: make hip directory
+        run: mkdir hip
+      - name: Compile m5ops and x86
+        working-directory: ${{ github.workspace }}/util/m5
+        run: |
+          export TERM=xterm-256color
+          scons build/x86/out/m5
+      - name: Download tests
+        working-directory: ${{ github.workspace }}/hip
+        run: wget http://dist.gem5.org/dist/v22-1/test-progs/halo-finder/ForceTreeTest
+      - name: Run HACC tests
+        working-directory: ${{ github.workspace }}
+        run: |
+          build/GCN3_X86/gem5.opt configs/example/apu_se.py -n3 --reg-alloc-policy=dynamic --benchmark-root=hip -c ForceTreeTest --options="0.5 0.1 64 0.1 1 N 12 rcb"