Optimize Efficiency of Utilizing Systems by Dynamic Core Binding.

Load balancing at both the process and thread levels is imperative for minimizing application computation time in the context of MPI/OpenMP hybrid parallelization. This necessity arises from the constraint that, within a typical hybrid parallel environment, an identical number of cores is bound to each process. Dynamic Core Binding, however, adjusts the core binding based on the process’s workload, thereby realizing load balancing at the core level. In prior research, we have implemented the DCB library, which has two policies for computation time reduction or power reduction. In this paper, we show that the two policies provided by the DCB library can be used together to achieve both computation time reduction and power consumption reduction.