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A programming model for GPU-based parallel computing with scalability and abstraction

Balazs Domonkos, Gabor Jakab
Budapest University of Technology and Economics, Hungary
Proceedings of the 2009 Spring Conference on Computer Graphics, SCCG ’09, 2009

@inproceedings{domonkos2009programming,

   title={A programming model for GPU-based parallel computing with scalability and abstraction},

   author={Domonkos, B. and Jakab, G.},

   booktitle={Proceedings of the 2009 Spring Conference on Computer Graphics},

   pages={103–111},

   year={2009},

   organization={ACM}

}

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In this paper, we present a multi-level programming model for recent GPU-based high performance computing systems. Involving cooperative stream threads and symmetric multiprocessing threads our model gives a computational framework that scales through multi-GPU environments to GPU-cluster systems. Instead of hiding the execution environment from the programmer using compiler extensions or metaprogramming techniques we aim a solution that both enables optimizations and provides abstract problem space mapping with code reusability and virtualization of hardware resources in order to decrease the programming effort. We evaluate an implementation of our model based on CUDA, OpenMP, and MPI2 technologies on a complex practical application scenario and discuss its performance scaling behavior.
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