Programmability and Performance Portability Aspects of Heterogeneous Multi-/Manycore Systems

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Provided by: European Design and Automation Association
Topic: Hardware
Format: PDF
The need to improve the performance/energy ratio has caused a general trend towards increased heterogeneity in multi- and manycore systems, where general-purpose computing cores are complemented with energy-efficient special-purpose accelerators located either on or off-chip, as in, e.g., GPU-supported systems. However, this trend has also brought new, fundamental problems for the design, optimization and maintenance of software for such systems. Current programming approaches are either platform-specific, such as CUDA for Nvidia GPUs, or are portable but at a low level of abstraction, as with, e.g., OpenCL.
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