Using the supercomputer Gibbs at the University of New Mexico I get the following timings for various number of nodes for the creation of a random Hermitian matrix and its Eigen decomposition. Each node used 16 processors. JGW_Graphic

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Using the supercomputer Gibbs at the University of New Mexico I get the following timings for various number of nodes for the creation of a random Hermitian matrix and its Eigen decomposition. Each node used 16 processors. JGW_Graphic