An OpenCL implementation of ellipsoidal harmonics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025615%3A_____%2F13%3A%230001899" target="_blank" >RIV/00025615:_____/13:#0001899 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
An OpenCL implementation of ellipsoidal harmonics
Original language description
The progress in computer development makes it possible to solve many problems of physical geodesy just by means of numerical arrangements unimaginable before. Nevertheless, considering a precise evaluation of spheroidal (spherical and ellipsoidal) harmonic functions in our typical task, we still observe a huge performance gap between numerical demands and capabilities of the present CPUs. Known methods for evaluation of Legendre functions (of the first as well as 2nd kind) are basically recurrent and thus sequential, where one step involves just a few arithmetic operations. Therefore, it seems to be challenging, but still feasible, to arrange an evaluation of Legendre functions in a way that admits wide SIMD parallelism. Regarding this aim, we provideOpen Computing Language (OpenCL) implementation of the streaming-parallel algorithm for evaluation of ellipsoidal harmonic functions and their derivatives. The developed algorithm is free of assumptions about the function arguments, maxim
Czech name
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Czech description
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Project
<a href="/en/project/ED1.1.00%2F02.0090" target="_blank" >ED1.1.00/02.0090: NTIS - New Technologies for Information Society</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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