Symmetry-guided large-scale shell-model theory

KD Launey, T Dytrych, JP Draayer - Progress in Particle and Nuclear …, 2016 - Elsevier
In this review, we present a symmetry-guided strategy that utilizes exact as well as partial
symmetries for enabling a deeper understanding of and advancing ab initio studies for …

[LIBRO][B] Using MPI: portable parallel programming with the message-passing interface

W Gropp, E Lusk, A Skjellum - 1999 - books.google.com
The Message Passing Interface (MPI) specification is widely used for solving significant
scientific and engineering problems on parallel computers. There exist more than a dozen …

N3LO NN interaction adjusted to light nuclei in ab exitu approach

AM Shirokov, IJ Shin, Y Kim, M Sosonkina, P Maris… - Physics Letters B, 2016 - Elsevier
We use phase-equivalent transformations to adjust off-shell properties of similarity
renormalization group evolved chiral effective field theory NN interaction (Idaho N3LO) to fit …

Hoyle state and rotational features in Carbon-12 within a no-core shell-model framework

AC Dreyfuss, KD Launey, T Dytrych, JP Draayer… - Physics Letters B, 2013 - Elsevier
By using only a fraction of the model space extended beyond current no-core shell-model
limits and a many-nucleon interaction with a single parameter, we gain additional insight …

Collective rotation from ab initio theory

MA Caprio, P Maris, JP Vary, R Smith - International Journal of …, 2015 - World Scientific
Through ab initio approaches in nuclear theory, we may now seek to quantitatively
understand the wealth of nuclear collective phenomena starting from the underlying …

Optimizing sparse matrix-multiple vectors multiplication for nuclear configuration interaction calculations

HM Aktulga, A Buluç, S Williams… - 2014 IEEE 28th …, 2014 - ieeexplore.ieee.org
Obtaining highly accurate predictions on the properties of light atomic nuclei using the
configuration interaction (CI) approach requires computing a few extremal Eigen pairs of the …

Applying the roofline performance model to the intel xeon phi knights landing processor

D Doerfler, J Deslippe, S Williams, L Oliker… - … Computing: ISC High …, 2016 - Springer
Abstract The Roofline Performance Model is a visually intuitive method used to bound the
sustained peak floating-point performance of any given arithmetic kernel on any given …

Accelerating nuclear configuration interaction calculations through a preconditioned block iterative eigensolver

M Shao, HM Aktulga, C Yang, EG Ng, P Maris… - Computer Physics …, 2018 - Elsevier
We describe a number of recently developed techniques for improving the performance of
large-scale nuclear configuration interaction calculations on high performance parallel …

Structure of -shell nuclei using three-nucleon interactions evolved with the similarity renormalization group

ED Jurgenson, P Maris, RJ Furnstahl, P Navrátil… - Physical Review C …, 2013 - APS
The similarity renormalization group (SRG) is used to soften interactions for ab initio nuclear
structure calculations by decoupling low-and high-energy Hamiltonian matrix elements. The …

Emergence of rotational bands in ab initio no-core configuration interaction calculations of the Be isotopes

P Maris, MA Caprio, JP Vary - Physical Review C, 2015 - APS
The emergence of rotational bands is observed in no-core configuration interaction (NCCI)
calculations for the Be isotopes (7≤ A≤ 12), as evidenced by rotational patterns for …