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Managing computation resources in a cost-effective way has become the core competence for a Cloud provider to win over the market because of the "pay-as-you-go" business model. Therefore, VM placement has become more and more important in the research and practices of VM management by determining at what condition and on which physical server a VM should be placed so that the SLA can be...
MPI collective operations on multi-core clusters should be multi-core aware. In this paper, collective algorithms with hierarchical virtual topology focus on the performance difference among different communication levels on multi-core clusters, simply for intra-node and inter-node communication; Furthermore, to select befitting segment sizes for intra-node collective communication can cater to cache...
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