Uppsala University Department of Information Technology

Licentiate thesis 2013-002

Scientific Computing on Hybrid Architectures

Marcus Holm

31 May 2013

Abstract:
Modern computer architectures, with multicore CPUs and GPUs or other accelerators, make stronger demands than ever on writers of scientific code. As a rule of thumb, the fastest, most efficient program consists of labor- intensive code written by expert programmers for a certain application on a particular computer. This thesis deals with several algorithmic and technical approaches towards effectively satisfying the demand for high-performance parallel programming without incurring such a high cost in expert program- mer time. Effective programming is accomplished by writing performance- portable code where performance-critical functionality is provided either by external software or at least a balance between maintainability/generality and efficiency.

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Uppsala Universitet