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Using the Global Arrays Toolkit to Reimplement NumPy for Distributed Computation

Jeff Daily
Pacific Northwest National Laboratory

Robert R. Lewis
Washington State University


Global Arrays (GA) is a software system from Pacific Northwest National Laboratory that enables an efficient, portable, and parallel shared-memory programming interface to manipulate distributed dense arrays. Using a combination of GA and NumPy, we have reimplemented NumPy as a distributed drop-in replacement called Global Arrays in NumPy (GAiN). Scalability studies will be presented showing the utility of developing serial NumPy codes which can later run on more capable clusters or supercomputers.


Global Arrays, Python, NumPy, MPI



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