[ROCm] Enable MI355 CI on PRs, and run full set of UTs on PRs (#160215)

Useful to have PR testing for PRs such as https://github.com/pytorch/pytorch/pull/151360

Pull Request resolved: https://github.com/pytorch/pytorch/pull/160215
Approved by: https://github.com/malfet, https://github.com/atalman

Co-authored-by: Jeff Daily <jeff.daily@amd.com>

.github/pytorch-probot.yml

@@ -30,6 +30,7 @@ ciflow_push_tags:
 - ciflow/riscv64
 - ciflow/rocm
 - ciflow/rocm-mi300
+- ciflow/rocm-mi355
 - ciflow/s390
 - ciflow/slow
 - ciflow/torchbench

.github/workflows/rocm-mi355.yml

@@ -1,6 +1,9 @@
 name: rocm-mi355
 
 on:
+  push:
+    tags:
+      - ciflow/rocm-mi355/*
   workflow_dispatch:
   schedule:
     - cron: 30 11,1 * * *  # about 4:30am PDT and 6:30pm PDT
@@ -64,5 +67,7 @@ jobs:
       build-environment: linux-noble-rocm-py3.12-mi355
       docker-image: ${{ needs.linux-noble-rocm-py3_12-build.outputs.docker-image }}
       test-matrix: ${{ needs.linux-noble-rocm-py3_12-build.outputs.test-matrix }}
-      tests-to-include: "test_nn test_torch test_cuda test_ops test_unary_ufuncs test_binary_ufuncs test_autograd inductor/test_torchinductor"
+      tests-to-include: >-
+                        ${{ github.event_name == 'schedule' && 'test_nn test_torch test_cuda test_ops test_unary_ufuncs test_binary_ufuncs test_autograd inductor/test_torchinductor test_matmul_cuda test_scaled_matmul_cuda'
+                           || '' }}
     secrets: inherit