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2010
ACM

An asymmetric distributed shared memory model for heterogeneous parallel systems

8 years 11 months ago
An asymmetric distributed shared memory model for heterogeneous parallel systems
Heterogeneous computing combines general purpose CPUs with accelerators to efficiently execute both sequential control-intensive and data-parallel phases of applications. Existing programming models for heterogeneous computing rely on programmers to explicitly manage data transfers between the CPU system memory and accelerator memory. This paper presents a new programming model for heterogeneous computing, called Asymmetric Distributed Shared Memory (ADSM), that maintains a shared logical memory space for CPUs to access objects in the accelerator physical memory but not vice versa. The asymmetry allows light-weight implementations that avoid common pitfalls of symmetrical distributed shared memory systems. ADSM allows programmers to assign data objects to performance critical methods. When a method is selected for accelerator execution, its associated data objects are allocated within the shared logical memory space, which is hosted in the accelerator physical memory and transparentl...
Isaac Gelado, Javier Cabezas, Nacho Navarro, John
Added 18 Jul 2010
Updated 18 Jul 2010
Type Conference
Year 2010
Where ASPLOS
Authors Isaac Gelado, Javier Cabezas, Nacho Navarro, John E. Stone, Sanjay J. Patel, Wen-mei W. Hwu
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