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Energy Balance between Voltage Frequency Scaling and Resilience for Linear Algebra Routines on Low Power Multicore Architectures

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Academic year: 2020

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Figure 1: High performance implementation of gemv in BLIS. In the code, M c ≡ M ( : , j c : j c + n c − 1) is a notation artifact, while y c , x c correspond to actual buffers that are involved in data copies.
Figure 2: High performance implementation of gemm in BLIS. In the code, C c ≡ C(i c : i c + m c −1, j c : j c + n c −1) is just a notation artifact, introduced to ease the presentation of the algorithm, while A c , B c correspond to actual buffers that are
Table 1: VFS configurations (voltage-frequency pairs, in V and GHz, respectively) avail- avail-able in the Samsung Exynos 5422 and Juno (r0) SoCs.
Table 2: Performance and energy efficiency for gemv, gemm and getrf executed in the Exynos 5422 and Juno (r0) SoCs
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