Çѱ¹ÀÎÅͳÝÁ¤º¸ÇÐȸ ³í¹®Áö
ÇѱÛÁ¦¸ñ(Korean Title) |
µµ½Ã±â»ó¸ðµ¨ CFD_NIMRÀÇ GP-GPU ½ÇÇàÀ» À§ÇÑ º´·Ä ÇÁ·Î±×·¥ÀÇ ±¸Çö |
¿µ¹®Á¦¸ñ(English Title) |
GP-GPU based Parallelization for Urban Terrain Atmospheric Model CFD_NIMR |
ÀúÀÚ(Author) |
±è¿µÅÂ
¹ÚÇýÀÚ
ÃÖ¿µÁø
Youngtae Kim
Hyeja Park
Young-Jeen Choi
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¿ø¹®¼ö·Ïó(Citation) |
VOL 15 NO. 02 PP. 0041 ~ 0047 (2014. 04) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®Àº µµ½Ã±â»ó¸ðµ¨ÀÎ Àü»êÀ¯Ã¼¿ªÇиðµ¨(CFD_NIMR)À» GP-GPU¿¡¼ ½ÇÇà½ÃÅ°±â À§ÇØ CUDA Fortran º´·ÄÇÁ·Î±×·¥À» ±¸ÇöÇÏ¿´´Ù. GP-GPU´Â ¿ø·¡ PCI Ä«µå ÇüÅÂÀÇ ±×·¡ÇÈ Ã³¸® ÀåÄ¡ÀÌÁö¸¸ Àúºñ¿ë, ÀúÀü·ÂÀ¸·Î ´ë·®ÀÇ °è»êÀ» ÃÊ°í¼ÓÀ¸·Î ¼öÇàÇÒ ¼ö ÀÖ´Â ÀϹݰè»ê °¡¼Ó±âÀÌ´Ù. ¸ðµ¨À» ´ÜÀÏ Intel XEON 2.0 GHz CPU¿¡¼ ½ÇÇàÇÑ °á°ú¿Í Nvidia Tesla C1060 GPU¿¡¼ ½ÇÇàÇÑ ¼º´ÉÀ» ºñ±³ÇÏ¿´À» ¶§ GP-GPU¿¡¼ 15¹è Á¤µµÀÇ ºü¸¥ ¼Óµµ¸¦ º¸¿´´Ù. ¶ÇÇÑ ´ÙÁß CPU¸¦ »ç¿ëÇÑ MPI º´·ÄÇÁ·Î±×·¥°ú ºñ±³ÇÑ °æ¿ì¿¡µµ GP-GPU¿¡¼ º¸´Ù ´õ È¿À²ÀûÀÎ ¼º´ÉÀ» º¸¿´´Ù. º» ³í¹®¿¡¼ Á¦½ÃÇÑ ÇÁ·Î±×·¥ ¹æ½ÄÀº À¯»çÇÑ ±¸Á¶¸¦ °¡Áø ¼öÄ¡¸ðµ¨À» GP-GPU º´·Ä ÇÁ·Î±×·¥À¸·Î ±¸ÇöÇϴµ¥ ½±°Ô Àû¿ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ±â´ëÇÑ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
In this paper, we implemented a CUDA Fortran parallel program to run the CFD_NIMR model on GP-GPU''s, which simulates air diffusion on urban terrains. A GP-GPU is graphic processing unit in the form of a PCI card, and a general calculation accelerator to perform a large amount of high speed calculations with low cost and electric power. The GP-GPU gives performance enhancement of speed by 15 times to compare the Nvidia Tesla C1060 GPU with Intel XEON 2.0 GHz CPU. In addition, the program on a GP-GPU shows efficient performance compared to an MPI parallel program on multiple CPU''s. It is expected that a proposed programming method on the GP-GPU parallel program can be used for numerical models with a similar structure.
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Å°¿öµå(Keyword) |
CFD_NIMR
GP-GPU
CUDA Fortran
Parallel Program
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ÆÄÀÏ÷ºÎ |
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