High-Level Manipulation of OpenCL-Based Subvectors and Submatrices

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• 作者：Karl Rupp ; ^{rupp@iue.tuwien.ac.at}
• 关键词：C++ ; OpenCL ; QR factorization ; ViennaCL
• 刊名：Procedia Computer Science
• 出版年：2012
• 期刊代码：pc74_18770509
• 类别：cp
• 出版时间：2012
• 卷：9
• 期：Complete
• 页码：1857-1866
• 文件大小：156 K

摘要

High-level C++ proxies for the convenient manipulation of subvectors and submatrices on OpenCL-enabled devices are introduced. It is demonstrated that the programming convenience of standard host-based code can be retained using native C++ language features only, even if massively parallel computing architectures such as graphics processing units are employed. The required modi铿乧ations of the underlying OpenCL kernels are discussed and a case study of an implementation of the QR-factorization is given. Benchmark results con铿乺m that the convenience of purely CPU-based libraries can be preserved without sacri铿乧ing performance of OpenCL-enabled devices, particularly graphics processing units.