计算机应用
計算機應用
계산궤응용
COMPUTER APPLICATION
2014年
z1期
74-77,81
,共5页
刘俊骅%郭坤琨%陈安琪%马瑶
劉俊驊%郭坤琨%陳安琪%馬瑤
류준화%곽곤곤%진안기%마요
耗散粒子动力学%图像处理器%并行运算%相分离
耗散粒子動力學%圖像處理器%併行運算%相分離
모산입자동역학%도상처리기%병행운산%상분리
Dissipative Particle Dynamics ( DPD )%Graphic Processing Unit ( GPU )%parallel computing%phase separation
计算机模拟的时空尺度限制了它的进一步应用和发展,而高性能图像处理器( GPU)得以充分利用的现实将会使计算机模拟突破该限制。为此使用图像处理器实现耗散粒子动力学( DPD)模拟方法的并行运算。通过模拟结果发现图像处理器的并行运算将会大幅度提高计算效率。为了检验自编的代码,研究了并行运算模拟中压力和体系密度的关系,二元共混体中Flory-Huggins参数、保守力参数和链长之间的关系,模拟结果和以前的报道一致。
計算機模擬的時空呎度限製瞭它的進一步應用和髮展,而高性能圖像處理器( GPU)得以充分利用的現實將會使計算機模擬突破該限製。為此使用圖像處理器實現耗散粒子動力學( DPD)模擬方法的併行運算。通過模擬結果髮現圖像處理器的併行運算將會大幅度提高計算效率。為瞭檢驗自編的代碼,研究瞭併行運算模擬中壓力和體繫密度的關繫,二元共混體中Flory-Huggins參數、保守力參數和鏈長之間的關繫,模擬結果和以前的報道一緻。
계산궤모의적시공척도한제료타적진일보응용화발전,이고성능도상처리기( GPU)득이충분이용적현실장회사계산궤모의돌파해한제。위차사용도상처리기실현모산입자동역학( DPD)모의방법적병행운산。통과모의결과발현도상처리기적병행운산장회대폭도제고계산효솔。위료검험자편적대마,연구료병행운산모의중압력화체계밀도적관계,이원공혼체중Flory-Huggins삼수、보수력삼수화련장지간적관계,모의결과화이전적보도일치。
Due to the limitation of spatial and temporal scales, computer simulations have significant barriers to their further applications and developments. However, computer simulations would break through the limitations because the further acceleration is possible through the advanced computer hardware of Graphic Processing Units ( GPU ) , which is the high performance computer processor designed to accelerate graphical applications. In this study, dissipative particle dynamics simulation was accelerated by GPUs. The simulation results show that a single GPU can give performance competitive with a much more expensive CPU cluster. To verify the GPU-accelerated code, the relation of pressure and destiny, and of the Flory-Huggins parameter, the parameter of the conservative force and polymer length in the simulations were discussed and compared with the previous publications.