Tao Gao, Yanfei Guo, Boyu Zhang, Pietro Cicotti, Yutong Lu, P. Balaji, M. Taufer
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Mimir: Memory-Efficient and Scalable MapReduce for Large Supercomputing Systems
In this paper we present Mimir, a new implementation of MapReduce over MPI. Mimir inherits the core principles of existing MapReduce frameworks, such as MR-MPI, while redesigning the execution model to incorporate a number of sophisticated optimization techniques that achieve similar or better performance with significant reduction in the amount of memory used. Consequently, Mimir allows significantly larger problems to be executed in memory, achieving large performance gains. We evaluate Mimir with three benchmarks on two highend platforms to demonstrate its superiority compared with that of other frameworks.