Use 32-core-ubuntu runner (#6)

Make the following changes:
1. Add back the FA2 package and compile from source code
2. Use 32-core-ubuntu runner to build the docker
3. Add workflow file to the GHA workflow path

.github/workflows/docker.yaml

@@ -5,29 +5,29 @@ on:
     - cron: '0 15 * * *'
   pull_request:
     paths:
+      - .github/workflows/docker.yaml
       - docker/*.dockerfile 
   workflow_dispatch:
     inputs:
       nightly_date:
         description: "PyTorch nightly version"
         required: false
 env:
-  WITH_PUSH: "true"
   CONDA_ENV: "tritonbench"
   DOCKER_IMAGE: "ghcr.io/pytorch-labs/tritonbench:latest"
   SETUP_SCRIPT: "/workspace/setup_instance.sh"
 
 jobs:
   build-push-docker:
     if: ${{ github.repository_owner == 'pytorch-labs' }}
-    runs-on: ubuntu-latest
+    runs-on: 32-core-ubuntu
     steps:
       - name: Checkout
         uses: actions/checkout@v3
         with:
           path: tritonbench
       - name: Login to GitHub Container Registry
-        if: ${{ env.WITH_PUSH == 'true' }}
+        if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
         with:
           registry: ghcr.io
@@ -38,17 +38,17 @@ jobs:
           set -x
           export NIGHTLY_DATE="${{ github.event.inputs.nightly_date }}"
           cd tritonbench/docker
-          full_ref="${{ github.ref }}"
-          prefix="refs/heads/"
-          branch_name=${full_ref#$prefix}
+          # branch name is github.head_ref when triggered by pull_request
+          # and it is github.ref_name when triggered by workflow_dispatch
+          branch_name=${{ github.head_ref || github.ref_name }}
           docker build . --build-arg TRITONBENCH_BRANCH="${branch_name}" --build-arg FORCE_DATE="${NIGHTLY_DATE}" \
               -f tritonbench-nightly.dockerfile -t ghcr.io/pytorch-labs/tritonbench:latest
           # Extract pytorch version from the docker
           PYTORCH_VERSION=$(docker run -e SETUP_SCRIPT="${SETUP_SCRIPT}" ghcr.io/pytorch-labs/tritonbench:latest bash -c '. "${SETUP_SCRIPT}"; python -c "import torch; print(torch.__version__)"')
           export DOCKER_TAG=$(awk '{match($0, /dev[0-9]+/, arr); print arr[0]}' <<< "${PYTORCH_VERSION}")
           docker tag ghcr.io/pytorch-labs/tritonbench:latest ghcr.io/pytorch-labs/tritonbench:${DOCKER_TAG}
       - name: Push docker to remote
-        if: ${{ env.WITH_PUSH == 'true' }}
+        if: github.event_name != 'pull_request'
         run: |
           # Extract pytorch version from the docker
           PYTORCH_VERSION=$(docker run -e SETUP_SCRIPT="${SETUP_SCRIPT}" ghcr.io/pytorch-labs/tritonbench:latest bash -c '. "${SETUP_SCRIPT}"; python -c "import torch; print(torch.__version__)"')

install.py

@@ -115,11 +115,7 @@ def install_tk():
     if args.fbgemm or args.all:
         logger.info("[tritonbench] installing FBGEMM...")
         install_fbgemm()
-    # TODO: for some reason, fa2 compile will break docker build
-    if args.fa2:
-        logger.info("[tritonbench] installing fa2...")
-        install_fa2()
-    if args.fa2_compile:
+    if args.fa2 or args.all:
         logger.info("[tritonbench] installing fa2 from source...")
         install_fa2(compile=True)
     if args.fa3 or args.all: