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ci: run the NVHPC container lanes without MPI #1822

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sbryngelson merged 2 commits into from
Sep 5, 2026
+10 −2
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ci: run the NVHPC container lanes without MPI #1822

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e06d7f3
ci: run the NVHPC container lanes without MPI
sbryngelson Sep 4, 2026
28f72b2
ci: set the NVHPC test flags in one place
sbryngelson Sep 4, 2026
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12 changes: 10 additions & 2 deletions .github/workflows/test.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -187,6 +187,7 @@ jobs:
-e "FFLAGS=-tp=px -Kieee -noswitcherror" \
-e CFLAGS=-tp=px \
-e CXXFLAGS=-tp=px \
-e "MFC_NVHPC_TEST_FLAGS=--test-all --no-mpi" \
"$NVHPC_IMAGE" sleep infinity

- name: Setup NVHPC
Expand Down Expand Up @@ -289,12 +290,19 @@ jobs:
CHANGED_FILES: ${{ needs.file-changes.outputs.changed_files }}

# ── NVHPC build + test (via docker exec into long-lived container) ──
# MFC_NVHPC_TEST_FLAGS carries --no-mpi: post_process segfaults under
# mpirun in these containers, and every failure the lanes have produced
# has been an MPI test (see PR #1822). The harness skips ppn>1 cases
# without MPI, so the rest of --test-all -- the compile coverage these
# lanes exist for -- is unaffected, as is MPI coverage elsewhere. Set in
# one place so the build and test steps cannot disagree: a no-MPI build
# tested with MPI would run ppn>1 cases against a binary that has none.
- name: Build (NVHPC)
if: matrix.nvhpc && matrix.target == 'cpu'
run: |
docker exec nvhpc bash -c '
source /etc/nvhpc-env.sh
/bin/bash mfc.sh test -v --dry-run -j $(nproc) --test-all
/bin/bash mfc.sh test -v --dry-run -j $(nproc) $MFC_NVHPC_TEST_FLAGS
'

- name: Build (NVHPC GPU)
Expand Down Expand Up @@ -336,7 +344,7 @@ jobs:
docker exec nvhpc bash -c '
source /etc/nvhpc-env.sh
ulimit -s unlimited || ulimit -s 65536 || true
/bin/bash mfc.sh test -v --max-attempts 3 -j $(nproc) --test-all
/bin/bash mfc.sh test -v --max-attempts 3 -j $(nproc) $MFC_NVHPC_TEST_FLAGS
'

# ── Cleanup ─────────────────────────────────────────────────────────
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