Monitoring is done by running FBD scripts. If there is no monitoring tool for a specific situation, it can be easily programmed by user. As for QnP(R)HCPUs are primarily targeted to HPC, the simulator provides model database for a specific type of HPC clusters. It also supports only two models that we name “Local” and “External”. The “Local” model refers to a set of processors working as a cluster and “External” model refers to a set of processors connected to the cluster via I/O. An exception could be expected from FBD for some models that need the physics engine, i.e. “Local” model. A model requires QnP(R)HCPUs simulation to be equipped with the “Local” model if the number of processors is no larger than the number of ranks that the CPUs are equipped with. In the “Local” model, the simulation is computed by each rank individually and when the simulation finishes, it is collected by the simulation master to be aggregated. For “External” model, the simulation process is applied directly to the QnP(R)HCPUs. In this work, the “Local” model is applied. The details of the two models are presented in the next two sections. FBD simulator version in the evaluation was 0.0.5a.
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