HBJ model (original) (raw)

In computer science, the Helman-Bader-JaJa model is a concise message-passing model of parallel computation defined with the following parameters: * is number of processors. * is the problem size. * is number of machine words in a packet sent over the network. * is the latency, or time at which a processor takes to initiate a communication on a network. * is the bandwidth, or time per machine word at which a processor can inject or receive machine words from the network. * is the largest computation time expended on a processor. * is the time spent in communication on the network.