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We are entering the era of thermally-bound computing: Advanced and costly cooling solutions are needed to sustain the high computing densities of high-performance computing equipment. To reduce cooling costs and cooling overprovisioning, dynamic thermal management (DTM) strategies aim at controlling the device temperature by modulating online the performance of processing elements. While operating...
Manycore accelerators have recently proven a promising solution for increasingly powerful and energy efficient computing systems. This raises the need for parallel programming models capable of effectively leveraging hundreds to thousands of processors. Task-based parallelism has the potential to provide such capabilities, offering flexible support to fine-grained and irregular parallelism. However,...
Manufacturing and environmental variations cause timing errors that are typically avoided by conservative design guardbands or corrected by circuit level error detection and correction. These measures incur energy and performance penalties. This paper considers methods to reduce this cost by expanding the scope of variability mitigation through the software stack. In particular, we propose workload...
<?Pub Dtl?>Manufacturing and environmental variations cause timing errors in microelectronic processors that are typically avoided by ultra-conservative multi-corner design margins or corrected by error detection and recovery mechanisms at the circuit-level. In contrast, we present here runtime software support for cost-effective countermeasures against hardware timing failures during system...
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