We have developed a new communicatio library, called PM, for the Myrinet gigabit LAN card, that has a dedicated proccessor and onboard memory to handle communication protocols. To obtain high performance communication and support multi-user environemtns, we have formance communications and support multi-user environments, we have co-designed PM, an operating system implemented as a daemon process, and the run-time routine for a programming language. everal unique fetures e.g. network context switching and a Modified ACK/NACK flow control algorithm, have been developed for PM.
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