Title:	Variational after projection calculations on GPU for exotic nuclei and nucleosynthesis
DNr:	Berzelius-2024-106
Project Type:	LiU Berzelius
Principal Investigator:	Chong Qi <chongq@kth.se>
Affiliation:	Kungliga Tekniska högskolan
Duration:	2024-03-12 – 2024-10-01
Classification:	10301
Keywords:

Abstract

The nucleus is a unique laboratory to study the complex nature of the many-body dynamics. A real challenge at present is the understanding of nuclei very far from stability. The study of those nuclei, many of which can be reached in upcoming radioactive ion beam facilities, may require drastic changes in standard concepts in nuclear structure physics. The theoretical description of these nuclei was provided done using large-scale configuration interaction approaches parallelized with MPI+OpenMP on supercomputers. Instead, we have just developed a varational after projection approach on GPU which not only show significant speed up the calculations but can also extend to large problems that goes beyond the capability of supercomputers with only CPU. In this project we will apply the code to study systems above 100Sn that are important for the rapid proton capture process. The code has been intensively tested on a Tesla V100 GPU unit.