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oaioai:depositonce.tu-berlin.de:11303/6923

Spatio-temporal SIMT and scalarization for improving GPU efficiency

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Publication date
1 January 2015
Publisher
Doi

    Abstract

    Temporal SIMT (TSIMT) has been suggested as an alternative to conventional (spatial) SIMT for improving GPU performance on branch-intensive code. Although TSIMT has been briefly mentioned before, it was not evaluated. We present a complete design and evaluation of TSIMT GPUs, along with the inclusion of scalarization and a combination of temporal and spatial SIMT, named Spatiotemporal SIMT (STSIMT). Simulations show that TSIMT alone results in a performance reduction, but a combination of scalarization and STSIMT yields a mean performance enhancement of 19.6% and improves the energy-delay product by 26.2% compared to SIMT.EC/FP7/288653/EU/Low-Power Parallel Computing on GPUs/LPGP

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    This paper was published in DepositOnce.

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