A detailed analysis of communication load balance on BlueGene supercomputer Original Research Article

We have developed several models that abstract applications as demand matrices and computer networks as supply matrices for minimizing the time to complete an application on a given computer by mapping. The mappings generated by our models improve the BlueGene/L performance of several engineering applications by up to 22% compared to the standard approach. Such improvements result mainly from balancing the communication loads among the network links.