Toward scalable many-body calculations for nuclear open quantum systems using the Gamow Shell Model
文献类型：期刊论文
| 作者 | Michel, N.1,2,3,4; Aktulga, H. M.5; Jaganathen, Y.3,6,7 |
| 刊名 | COMPUTER PHYSICS COMMUNICATIONS
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 247页码:11 |
| 关键词 | Configuration interaction MPI/openMP hybrid parallelization 2D partitioning |
| ISSN号 | 0010-4655 |
| DOI | 10.1016/j.cpc.2019.106978 |
| 通讯作者 | Michel, N.(nicolas.michel@impcas.ac.cn) |
| 英文摘要 | Drip-line nuclei have very different properties from those of the valley of stability, as they are weakly bound and resonant. Therefore, the models devised for stable nuclei can no longer be applied therein. Hence, a new theoretical tool, the Gamow Shell Model (GSM), has been developed to study the manybody states occurring at the limits of the nuclear chart. GSM is a configuration interaction model based on the use of the so-called Berggren basis, which contains bound, resonant and scattering states, so that inter-nucleon correlations are fully taken into account and the asymptotes of extended manybody wave functions are precisely handled. However, large complex symmetric matrices must be diagonalized in this framework, therefore the use of very powerful parallel machines is needed therein. In order to fully take advantage of their power, a 2D partitioning scheme using hybrid MPI/OpenMP parallelization has been developed in our GSM code. The specificities of the 2D partitioning scheme in the GSM framework will be described and illustrated with numerical examples. It will then be shown that the introduction of this scheme in the GSM code greatly enhances its capabilities. (C) 2019 Elsevier B.V. All rights reserved. |
| 资助项目 | US Department of Energy, Office of Science, Office of Nuclear Physics[DE-SC0013365] ; US Department of Energy, Office of Science, Office of Nuclear Physics[DE-SC0008511] ; US Department of Energy, Office of Science, Office of Nuclear Physics[DE-SC0018083] ; National Natural Science Foundation of China[11435014] ; National Natural Science Foundation of China[DE-SC0009971] ; Michigan State University ; Oak Ridge Leadership Computing Facility, DOE Office of Science User Facility[DE-AC05-000R22725] ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility[DE-AC02-05CH 11231] |
| WOS研究方向 | Computer Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000503093400012 |
| 出版者 | ELSEVIER |
| 资助机构 | US Department of Energy, Office of Science, Office of Nuclear Physics ; National Natural Science Foundation of China ; Michigan State University ; Oak Ridge Leadership Computing Facility, DOE Office of Science User Facility ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility |
| 源URL | [http://119.78.100.186/handle/113462/141411]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Michel, N. |
| 作者单位 | 1.Michigan State Univ, E Lansing, MI 48824 USA 2.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 3.CNRS, IN2P3, CEA DSM, GANIL, BP 55027, F-14076 Caen, France 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 5.Michigan State Univ, Dept Comp Sci, E Lansing, MI 48824 USA 6.PAN, Inst Nucl Phys, Ul Radzikowskiego 152, PL-31342 Krakow, Poland 7.Michigan State Univ, NSCL FRIB Lab, E Lansing, MI 48824 USA |
| 推荐引用方式 GB/T 7714 | Michel, N.,Aktulga, H. M.,Jaganathen, Y.. Toward scalable many-body calculations for nuclear open quantum systems using the Gamow Shell Model[J]. COMPUTER PHYSICS COMMUNICATIONS,2020,247:11. |
| APA | Michel, N.,Aktulga, H. M.,&Jaganathen, Y..(2020).Toward scalable many-body calculations for nuclear open quantum systems using the Gamow Shell Model.COMPUTER PHYSICS COMMUNICATIONS,247,11. |
| MLA | Michel, N.,et al."Toward scalable many-body calculations for nuclear open quantum systems using the Gamow Shell Model".COMPUTER PHYSICS COMMUNICATIONS 247(2020):11. |
入库方式： OAI收割
来源：近代物理研究所
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