We have developed a gravity solver based on combining the well developed Particle-Mesh (PM) method and TREE methods. It is designed for and has been implemented on parallel computer architectures. The new code can deal with tens of millions of particles on current computers, with the calculation done on a parallel supercomputer or a group of workstations. Typically, the spatial resolution is en...

We have developed a new communication library, called PM, for the Myrinet gigabit LAN card, that has a dedicated processor and on-board memory to handle a communication protocol. In order to obtain high performance communication and support a multi-user environment, we have co-desgined PM, an operating system realized by a daemon process, and the run-time routine for a programming language. Sev...

This article presents a novel parallel-excited dual-PM reluctance machine with enhanced torque and efficiency performance. The key is to build an integrated magnetic field two sets of PM excitation sources in both stator yoke slot openings. Two produce parallel field, which contributes superimposed flux the airgap, thus leading strengthened variation, improved back-EMF torque. Additionally, spe...

We have developed a communication library called PM for a workstation cluster using Sun SPARCstation 20/71's on a Myricom Myrinet. PM supports i) network context switching for the multi-user parallel processing environment and ii) FIFO message delivery. The Modi ed ACK/NACK ow control algorithm has been developed to realize these features. We implemented PM using several techniques for the Myri...