...
Use the module name cdnest to discover versions available and to load the application.
Multicore
Since cdnest has been built with openmpi, it can run across multiple tasks/nodes, but calls must be prefixed with srun, for example:
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[@blog1 test02]$ salloc -A <project-name> -t 30:00 -N 2 --tasks-per-node=3 -c 1
# Note that the application is picking up the 6 requested tasks: (2 nodes x 3 tasks per node)
[@m001 test02]$ export OMP_NUM_THREADS=1
[@m001 test02]$ srun dnest 1
#=======================================================
# Starting CDNest.
# Use 6 cores.
... |
ARCC’s tests have observed that when running with multiple nodes, after the run is finished, we see a message of the form:
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# Finalizing CDNest.
#=======================================================
"read_particle" function is not defined at task 5.
Set to be default function in cdnest.
"accept_action" function is not defined at task 5.
Set to the default function in cdnest.
"kill_action" function is not defined at task 5.
Set to the default function in cdnest. |
We require a domain expert to review the generated results and confirm that this is not an error.