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authorGravatar Axel Huebl <axel.huebl@plasma.ninja> 2022-02-16 16:30:57 -0800
committerGravatar GitHub <noreply@github.com> 2022-02-16 16:30:57 -0800
commita6f876a0f263510c0f1c52ae3e4f33fffa4095ea (patch)
tree77d948635155d2e1b8429f796ca04bcc2385c825
parentcc429657fc4414539b4fb42da947b831e94448a4 (diff)
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Lassen: Fix Chunked HDF5 with MPI (#2863)
Try to work-around segfaults with HDF5 when running on more than one node.
-rw-r--r--Tools/machines/lassen-llnl/lassen.bsub4
1 files changed, 4 insertions, 0 deletions
diff --git a/Tools/machines/lassen-llnl/lassen.bsub b/Tools/machines/lassen-llnl/lassen.bsub
index 0fd2500c5..7575a05fd 100644
--- a/Tools/machines/lassen-llnl/lassen.bsub
+++ b/Tools/machines/lassen-llnl/lassen.bsub
@@ -18,5 +18,9 @@
#BSUB -o WarpXo.%J
#BSUB -e WarpXe.%J
+# Work-around OpenMPI bug with chunked HDF5
+# https://github.com/open-mpi/ompi/issues/7795
+export OMPI_MCA_io=ompio
+
export OMP_NUM_THREADS=1
jsrun -r 4 -a 1 -g 1 -c 7 -l GPU-CPU -d packed -b rs -M "-gpu" <path/to/executable> <input file> > output.txt