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Assessing the impact of the CPU power saving modes on the task parallel solution of sparse linear systems

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Academic year: 2020

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Figure

Fig. 1 Nested dissection applied to the adjacency graph associated with a sparse matrix and the corresponding task dependency tree.
Table 1 P-states, associated voltage–frequency pairs ( V i in Volts and f i in GHz), and core to memory bandwidth ( BW i , in GB/sec.) measured with the stream benchmark.
Table 2 Parameters for the simple power model for the cpu burn , busy and gemm benchmarks (kernels) on wt amd and wt int
Fig. 2 Power dissipated as a function of the number of active cores for kernels cpu burn , busy and gemm (top, middle and bottom, respectively) on wt amd (left) and wt int (right).
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