Re-enable Phoenix NVHPC and Frontier AMD in CI workflows

Restore all runners that were temporarily disabled to speed up
initial CI validation of the CCE fix.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: sbryngelson

.github/workflows/bench.yml

@@ -37,7 +37,30 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          # Phoenix (NVHPC) — TEMPORARILY DISABLED (QOS job limit / pre-existing SLURM failures)
+          - cluster: phoenix
+            name: Georgia Tech | Phoenix (NVHPC)
+            group: phoenix
+            labels: gt
+            flag: p
+            device: cpu
+            interface: none
+            build_script: ""
+          - cluster: phoenix
+            name: Georgia Tech | Phoenix (NVHPC)
+            group: phoenix
+            labels: gt
+            flag: p
+            device: gpu
+            interface: acc
+            build_script: ""
+          - cluster: phoenix
+            name: Georgia Tech | Phoenix (NVHPC)
+            group: phoenix
+            labels: gt
+            flag: p
+            device: gpu
+            interface: omp
+            build_script: ""
           - cluster: frontier
             name: Oak Ridge | Frontier (CCE)
             group: phoenix

.github/workflows/test.yml

@@ -170,7 +170,22 @@ jobs:
     strategy:
       matrix:
         include:
-          # Phoenix (GT) — TEMPORARILY DISABLED (pre-existing SLURM/Case Opt failures)
+          # Phoenix (GT) — build+test combined in SLURM job
+          - runner:       'gt'
+            cluster:      'phoenix'
+            cluster_name: 'Georgia Tech | Phoenix'
+            device: 'gpu'
+            interface: 'acc'
+          - runner:       'gt'
+            cluster:      'phoenix'
+            cluster_name: 'Georgia Tech | Phoenix'
+            device: 'gpu'
+            interface: 'omp'
+          - runner:       'gt'
+            cluster:      'phoenix'
+            cluster_name: 'Georgia Tech | Phoenix'
+            device: 'cpu'
+            interface: 'none'
           # Frontier (ORNL) — build on login node, GPU tests sharded for batch partition
           - runner:       'frontier'
             cluster:      'frontier'
@@ -201,7 +216,24 @@ jobs:
             cluster_name: 'Oak Ridge | Frontier'
             device: 'cpu'
             interface: 'none'
-          # Frontier AMD — TEMPORARILY DISABLED (pre-existing failures unrelated to CCE fix)
+          # Frontier AMD — build on login node, GPU tests sharded for batch partition
+          - runner:       'frontier'
+            cluster:      'frontier_amd'
+            cluster_name: 'Oak Ridge | Frontier (AMD)'
+            device: 'gpu'
+            interface: 'omp'
+            shard: '1/2'
+          - runner:       'frontier'
+            cluster:      'frontier_amd'
+            cluster_name: 'Oak Ridge | Frontier (AMD)'
+            device: 'gpu'
+            interface: 'omp'
+            shard: '2/2'
+          - runner:       'frontier'
+            cluster:      'frontier_amd'
+            cluster_name: 'Oak Ridge | Frontier (AMD)'
+            device: 'cpu'
+            interface: 'none'
     runs-on:
       group:  phoenix
       labels: ${{ matrix.runner }}
@@ -257,8 +289,16 @@ jobs:
     strategy:
       matrix:
         include:
-          # Phoenix (GT) — TEMPORARILY DISABLED (pre-existing SLURM/Case Opt failures)
-          # Frontier AMD — TEMPORARILY DISABLED (pre-existing failures unrelated to CCE fix)
+          - runner:       'gt'
+            cluster:      'phoenix'
+            cluster_name: 'Georgia Tech | Phoenix'
+            device: 'gpu'
+            interface: 'acc'
+          - runner:       'gt'
+            cluster:      'phoenix'
+            cluster_name: 'Georgia Tech | Phoenix'
+            device: 'gpu'
+            interface: 'omp'
           - runner:       'frontier'
             cluster:      'frontier'
             cluster_name: 'Oak Ridge | Frontier'
@@ -269,6 +309,11 @@ jobs:
             cluster_name: 'Oak Ridge | Frontier'
             device: 'gpu'
             interface: 'omp'
+          - runner:       'frontier'
+            cluster:      'frontier_amd'
+            cluster_name: 'Oak Ridge | Frontier (AMD)'
+            device: 'gpu'
+            interface: 'omp'
     runs-on:
       group:  phoenix
       labels: ${{ matrix.runner }}