@AGonzalezNicolas' investigation of eCLM failing on >16 JURECA nodes shows that the different MPI-settings on JSC systems have different memory and performance behavior. Wrong settings can cause failure (as with the linked issue) or constrain model performance. Knowing the optimal MPI-settings can be highly relevant for high-resolution simulations.
The various MPI runtimes are documented here: https://apps.fz-juelich.de/jsc/hps/jureca/software-modules.html#mpi-runtimes
@AGonzalezNicolas' investigation of eCLM failing on >16 JURECA nodes shows that the different
MPI-settingson JSC systems have different memory and performance behavior. Wrong settings can cause failure (as with the linked issue) or constrain model performance. Knowing the optimalMPI-settingscan be highly relevant for high-resolution simulations.The various MPI runtimes are documented here: https://apps.fz-juelich.de/jsc/hps/jureca/software-modules.html#mpi-runtimes