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ci(phoenix): run the post-build syscheck under mpirun #1728

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Merged
sbryngelson merged 1 commit into from
Aug 15, 2026
Merged

ci(phoenix): run the post-build syscheck under mpirun #1728

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9 changes: 8 additions & 1 deletion .github/workflows/common/build.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -34,9 +34,16 @@ source .github/scripts/retry-build.sh

# Phoenix: smoke-test the syscheck binary to catch architecture mismatches
# (SIGILL from binaries compiled on a different compute node).
#
# Launch under mpirun rather than directly. Phoenix's openmpi/4.1.5 predates the
# PMIx 4.2.6 that came with the Slurm 26.05.2 upgrade, so an MPI binary started
# bare inside an allocation misreads the PMIx environment as an srun launch and
# aborts in MPI_Init ("OPAL ERROR: Unreachable in file ext3x_client.c"). mpirun
# is unaffected, and it is how MFC launches every binary anyway. Output is left
# on stdout so a future failure is diagnosable from the CI log.
Comment on lines +41 to +43
validate_cmd=""
if [ "$job_cluster" = "phoenix" ]; then
validate_cmd='syscheck_bin=$(find build/install -name syscheck -type f 2>/dev/null | head -1); [ -z "$syscheck_bin" ] || "$syscheck_bin" > /dev/null 2>&1'
validate_cmd='syscheck_bin=$(find build/install -name syscheck -type f 2>/dev/null | head -1); [ -z "$syscheck_bin" ] || mpirun -np 1 "$syscheck_bin"'
fi

# --- Variant selection ---
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