NDLI: Kokkos Array performance-portable manycore programming model

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Kokkos Array performance-portable manycore programming model

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Kokkos Array performance-portable manycore programming model

Content Provider	ACM Digital Library
Author	Edwards, H. Carter Sunderland, Daniel
Abstract	Large, complex scientific and engineering application code have a significant investment in computational kernels which implement their mathematical models. Porting these computational kernels to multicore-CPU and manycore-accelerator (e.g., NVIDIA® GPU) devices is a major challenge given the diverse programming models, application programming interfaces (APIs), and performance requirements. The Kokkos Array programming model provides library-based approach for implementing computational kernels that are performance-portable to multicore-CPU and manycore-accelerator devices. This programming model is based upon three fundamental concepts: (1) manycore compute devices each with its own memory space, (2) data parallel computational kernels, and (3) multidimensional arrays. Performance-portability is achieved by decoupling computational kernels from device-specific data access performance requirements (e.g., NVIDIA coalesced memory access) through an intuitive multidimensional array API. The Kokkos Array API uses C++ template meta-programming to, at compile time, transparently insert device-optimal data access maps into computational kernels. With this programming model computational kernels can be written once and, without modification, performance-portably compiled to multicore-CPU and manycore-accelerator devices.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISBN	9781450312110
DOI	10.1145/2141702.2141703
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2012-02-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Multicore Mini-application Gpu Manycore Multidimensional array
Content Type	Text
Resource Type	Article

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