Browsing by Subject "multicore"
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Item Multicore Methods to accelerate Ship Power System Simulations(IEEE, 2013-04) Uriarte, F.M.; Dufour, C.Two methods to partition and parallelize the simulation of large-scale shipboard power systems on multicore computes are demonstrated. The first method is node tearing, which is used for offline simulation. The second is the state-space nodal method, which is used for real-time simulation. Both methods are benchmarked against MATLAB/Simulink 2012b for speed and accuracy The simulation model is a notional shipboard power system having characteristics of AC-radial, 450 V, 60 Hz, three-phase, delta-ungrounded power system. The parallel simulation results show speedups in excess of one order of magnitude and general agreement in accuracy.Item Performance Studies for a Diakoptics-based Partitioning Approach for Power System Simulation(0000-00-00) Uriarte, F. M.; Butler-Purry, K. L.Performance studies of partitioned power system simulations on multicore computer are presented. A partitioning approach developed by the authors was used to speed up the simulation of a shipboard power system. The system was torn from its capacitor loops and simulated as subsystems on a quad-core computer. Several performance metrics are presented to assess the performance of this simulation approach: speed gain, accuracy, and core impact. Results from several case studies show the general trend of each performance metric and show that the run-time of large-scale simulations can reduce three orders of magnitude if all cores are used.