Journal
INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS
Volume 33, Issue 3, Pages 522-533Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1094342019838314
Keywords
Ab initio; high performance computing; nuclear structure; many-nucleon basis generation; parallel algorithm; symmetry-adapted no-core shell model
Categories
Funding
- Czech Science Foundation [16-16772S]
- Czech Ministry of Education, Youth and Sports [CZ.02.1.01/0.0/0.0/16_019/0000765]
- National Science Foundation [ACI-1713690, OIA-1738287]
- NSF [OCI-0725070, ACI-1238993]
- state of Illinois
Ask authors/readers for more resources
We present the problem of generating a many-nucleon basis in SU(3)-scheme for ab initio nuclear structure calculations in a symmetry-adapted no-core shell model framework. We first discuss and analyze the basis construction algorithm whose baseline implementation quickly becomes a significant bottleneck for large model spaces and heavier nuclei. The outcomes of this analysis are utilized to propose a new scalable version of the algorithm. Its performance is consequently studied empirically using the Blue Waters supercomputer. The measurements show significant acceleration achieved with over two orders of magnitude speedups realized for larger model spaces.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available