Performance Optimization of LARED-Integration Code in Radiative Transfer Calculations

Abstract

Abstract: Take use of characteristics of inertial confinement fusion(ICF) models and associated numerical discrete schemes, we proposed multiple techniques for promoting computational efficiency of two-dimensional radiation-hydrodynamic code LARED-integration. Numerical results show that with unchanged parallel resources it is two times faster in downstream spatial sweeping of solving transport equations. Half of total running time is saved for integrated simulation of laser fusion experimental hohlraums.

Key words: performance optimization, LARED-integration code, multi-group radiative transfer calculation, subcell balance method, laser fusion

CLC Number:

O434.11

LI Shuanggui, HANG Xudeng, YANG Rong, SONG Peng, ZHAI Chuanlei, QI Jin. Performance Optimization of LARED-Integration Code in Radiative Transfer Calculations[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2017, 34(3): 320-326.

References

[1] HAAN S W, et al. Point design targets, specifications, and requirements for the 2010 ignition compaign on the National Ignition Facility[J]. Phys Plasmas, 2011,18(5):051001.
[2] PEI W B. The construction of simulation algorithms for laser fusion[J]. Commun Comput Phys, 2007, 2(2):255-270.
[3] 裴文兵,朱少平. 激光聚变中的科学计算[J]. 物理,2009, 38(8):559-568.
[4] 翟传磊,李双贵,勇珩,等. 靶丸变形实验的多群扩散整体数值模拟[J].强激光与粒子束,2013,25(5):1157-1160.
[5] 李双贵,翟传磊,杭旭登, 等. 激光腔靶耦合二维辐射输运数值模拟[J]. 强激光与粒子束, 2014, 26(8):133-138.
[6] 宋鹏,翟传磊,李双贵, 等. 激光间接驱动惯性约束聚变二维总体程序——LARED集成程序[J]. 强激光与粒子束, 2015, 27(3):032007-1-032007-7.
[7] SAKAMI M, CHARETTE A. Application of a modified discrete ordinates method to two-dimensional enclosures of irregular geometry[J]. J Quant Spect Radiat Tansf, 2000, 64:275-298.
[8] 戴自焕,邬吉明,林忠,等. 二维三温辐射流体力学拉氏计算中的子网格压力法[J]. 计算物理, 2010, 27(3):326-334.
[9] 冯庭桂,赖东显,许琰. X光辐射多群输运计算的电子温度人为散射迭代方法[J]. 计算物理, 1999, 16(2):199-205.
[10] 冯庭桂. 任意四边形网格上解辐射输运方程的一种数值方法[J]. 计算物理,2004, 21(5):427-431.
[11] MO Zeyao, ZHANG Aiqing, CAO Xiaolin, et al. JASMIN:A parallel software infrastructure for scientific computing[J]. Front Comput Sci China, 2010, 4(4):480-488.
[12] 张钧,常铁强.激光核聚变靶物理基础[M].北京:国防工业出版社,2004.
[13] 杭旭登,李敬宏,袁光伟. 大长宽比扭曲网格上辅助网格差分方法[J]. 计算物理,2007, 24(3):268-276.
[14] 徐小文,莫则尧,安恒斌. 求解二维三温辐射扩散方程组的一种代数两层网格迭代方法[J]. 计算物理, 2009, 26(1):1-8.
[15] HAWKINS W D, SMITH T, ADAMS M P. Efficient massively parallel transport sweep[J]. Trans Amer Nucl Soc, 2012, 107:477-481.
[16] MO Zeyao, FU Lianxiang. Parallel flux sweep algorithm for neutron transport on unstructured grid[J]. The Journal of Supercomputing, 2004, 29:243-255.
[17] 张俊,吴宏春. 二维非结构网格中子输运方程并行Sn计算[J]. 原子能科学技术, 2009, 43(1):62-66.
[18] 周涤宇,刘杰. 一种改进的求解输运方程的并行Sn扫描算法[J]. 计算机工程与科学. 2008; 30(4):62-65.
[19] 迟利华,刘杰,田平. 非结构网格粒子输运Sn并行算法[J]. 计算机工程与科学, 2010, 32(10):85-90.
[20] 袁光伟,杭旭登. 粒子输运离散纵标方程基于界面修正的并行计算方法[J]. 计算物理, 2006, 23(6):637-641.
[21] 魏军侠,袁光伟,阳述林,等. 二维柱几何非定常中子输运方程基于格式的界面预估校正并行算法[J]. 计算物理,2012, 29(2):198-206.