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--- technical:recipes:ls-dyna [2024-06-07 12:40] – frey
+++ technical:recipes:ls-dyna [2024-06-07 12:51] (current) – [VALET package definition] frey
@@ Line 251: / Line 251: @@
                 - openmpi/4.0.5:intel19,ls-dyna
 </file>
+Loading one of these packages into the shell environment makes the ''ls-dyna'' command (the symlink created during install) available:
+<code bash>
+$ vpkg_require ls-dyna/single,hybrid,avx2
+Adding dependency `intel/2019u5` to your environment
+Adding dependency `libfabric/1.17.1` to your environment
+Adding dependency `openmpi/4.0.5:intel19,ls-dyna` to your environment
+Adding package `ls-dyna/15.0.2:single,avx2,hybrid` to your environment
+$ which ls-dyna
+/work/group/sw/ls-dyna/15.0.2/avx2/hyb/single/ls-dyna
+</code>
+===== Running jobs =====
+On the Caviness/DARWIN cluster, LS-DYNA computation must be submitted as a Slurm job.  The variants installed here use Open MPI, so the job script template at ''/opt/templates/slurm/generic/mpi/openmpi/openmpi.qs'' is a starting point for LS-DYNA jobs.  As in all cases for parallel jobs:
+  * The number of Slurm //tasks// represent the MPI ranks for a hybrid or MPP variant of LS-DYNA
+  * The number of CPUs per Slurm task represent the Open MP threads for an smp or hybrid variant of LS-DYNA
+Follow the comments in the script header to determine which flags to alter and how to do so.  The script template must be altered to add the desired version/variant of LS-DYNA to the job environment:
+<code>
+#
+# [EDIT] Do any pre-processing, staging, environment setup with VALET
+#        or explicit changes to PATH, LD_LIBRARY_PATH, etc.
+#
+vpkg_require ls-dyna/15.0.2:single,hybrid,avx2
+</code>
+Toward the end of the job script template, the LS-DYNA program is run:
+<code>
+#
+# [EDIT] Execute your MPI program
+#
+${UD_MPIRUN} ls-dyna i=my_model.k
+mpi_rc=$?
+</code>