Presentation
Doing Moore with Less – Leapfrogging Moore’s Law with Inexactness for Supercomputing
Author/Presenters
Event Type
Workshop
W
Architectures
Heterogeneous Systems
Quantum Computing
TimeSunday, November 11th2pm - 2:20pm
LocationD161
DescriptionWe investigate the use of inexactness, to trade solution quality with energy savings to reduce power consumption in HPC systems, using commercial off-the-shelf processors for lower-precision arithmetic. We implement an inexact Newton algorithm for solving nonlinear equations to show how to reinvest energy savings to improve solution quality. We provide an analytical model to explain our findings, and provide a justification for using nonstandard half-precision arithmetic for ill-conditioned problems.
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