 |
|
|
|
| HAL : hal-00135126, version 3 |
| arXiv : cs/0703028 |
| Fiche détaillée |  Récupérer au format |
|
|
| IEEE 18th International Conference Application-specific Systems, Architectures and Processors, Montréal : Canada (2007) |
|
|
| Versions disponibles : | v1 (06-03-2007) | v2 (24-05-2007) | v3 (29-08-2007) |
|
|
|
|
| Graphic processors to speed-up simulations for the design of high performance solar receptors |
|
|
| Sylvain Collange 1Marc Daumas 1, 2 |
|
|
| (2007) |
|
|
|
| Graphics Processing Units (GPUs) are now powerful and flexible systems adapted and used for other purposes than graphics calculations (General Purpose computation on GPU --- GPGPU). We present here a prototype to be integrated into simulation codes that estimate temperature, velocity and pressure to design next generations of solar receptors. Such codes will delegate to our contribution on GPUs the computation of heat transfers due to radiations. We use Monte-Carlo line-by-line ray-tracing through finite volumes. This means data-parallel arithmetic transformations on large data structures. Our prototype is inspired on the source code of GPUBench. Our performances on two recent graphics cards (Nvidia 7800GTX and ATI RX1800XL) show some speed-up higher than 400 compared to CPU implementations leaving most of CPU computing resources available. As there were some questions pending about the accuracy of the operators implemented in GPUs, we start this report with a survey and some contributed tests on the various floating point units available on GPUs. |
|
|
|
|
|
|
|
|
|
|
|
| 1 : | Electronique, Informatique, Automatique et Systèmes (ELIAUS) |
|
|
|
Université de Perpignan |
|
|
| 2 : | Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM) |
|
|
|
CNRS : UMR5506 – Université Montpellier II - Sciences et Techniques du Languedoc |
|
|
|
|
|
|
|
|
|
| Domaine | : | Informatique/Arithmétique des ordinateurs Informatique/Calcul parallèle, distribué et partagé Physique/Mécanique/Thermique Sciences de l'ingénieur/Mécanique/Thermique |
|
|
| Liste des fichiers attachés à ce document : | |||||
|
|||||
|
|
|
| hal-00135126, version 3 | |
| http://hal.archives-ouvertes.fr/hal-00135126 | |
| oai:hal.archives-ouvertes.fr:hal-00135126 | |
| Contributeur : Marc Daumas | |
| Soumis le : Mercredi 29 Août 2007, 13:53:26 | |
| Dernière modification le : Mercredi 29 Août 2007, 13:54:53 | |
