Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Tobin, Isaac"'
Autor:
Ulyanov, Alexei, Morris, Oran, Roberts, Oliver J., Tobin, Isaac, Hanlon, Lorraine, McBreen, Sheila, Murphy, David, Nelms, Nick, Shortt, Brian
Publikováno v:
Nuclear Inst. and Methods in Physics Research, A 844C (2017) pp. 81-89
Localisation of gamma-ray interaction points in monolithic scintillator crystals can simplify the design and improve the performance of a future Compton telescope for gamma-ray astronomy. In this paper we compare the position resolution of three mono
Externí odkaz:
http://arxiv.org/abs/1701.05548
Autor:
Ulyanov, Alexei, Morris, Oran, Hanlon, Lorraine, McBreen, Sheila, Foley, Suzanne, Roberts, Oliver J., Tobin, Isaac, Murphy, David, Wade, Colin, Nelms, Nick, Shortt, Brian, Slavicek, Tomas, Granja, Carlos, Solar, Michael
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, A 21 February 2016 810:107-119
Autor:
Tobin Isaac, Hansol Suh
Publikováno v:
SC
The p4est library implements octree-based adaptive mesh refinement (AMR) and has demonstrated parallel scalability beyond 100,000 MPI processes in previous weak scaling studies. This work focuses on the strong scalability of mesh adaptivity in p4est,
Autor:
Tobin Isaac
A rule for constructing interpolation nodes for $n$th degree polynomials on the simplex is presented. These nodes are simple to define recursively from families of 1D node sets, such as the Lobatto-Gauss-Legendre (LGL) nodes. The resulting nodes have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84f81d6ee3fa503421aeadb6a197c218
http://arxiv.org/abs/2002.09421
http://arxiv.org/abs/2002.09421
Publikováno v:
The Cryosphere, Vol 10, Iss 4, Pp 1477-1494 (2016)
We address the inverse problem of inferring the basal geothermal heat flux from surface velocity observations using a steady-state thermomechanically coupled nonlinear Stokes ice flow model. This is a challenging inverse problem since the map from ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82027004f859d77b2c6c3046dfd85a29
https://www.the-cryosphere.net/10/1477/2016/
https://www.the-cryosphere.net/10/1477/2016/
Publikováno v:
Journal of Computational Physics. 296:348-368
The majority of research on efficient and scalable algorithms in computational science and engineering has focused on the forward problem: given parameter inputs, solve the governing equations to determine output quantities of interest. In contrast,
Publikováno v:
Adams, MF; Hirvijoki, E; Knepley, MG; Brown, J; Isaac, T; & Mills, R. (2017). LANDAU COLLISION INTEGRAL SOLVER WITH ADAPTIVE MESH REFINEMENT ON EMERGING ARCHITECTURES. SIAM JOURNAL ON SCIENTIFIC COMPUTING, 39(6), C452-C465. doi: 10.1137/17M1118828. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/8t51b1gr
SIAM Journal on Scientific Computing, vol 39, iss 6
SIAM JOURNAL ON SCIENTIFIC COMPUTING, vol 39, iss 6
SIAM Journal on Scientific Computing, vol 39, iss 6
SIAM JOURNAL ON SCIENTIFIC COMPUTING, vol 39, iss 6
The Landau collision integral is an accurate model for the small-angle dominated Coulomb collisions in fusion plasmas. We investigate a high order accurate, fully conservative, finite element discretization of the nonlinear multispecies Landau integr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6815e77891cd98a7946b6f4c940ab0ea
Publikováno v:
High Performance Computing for Computational Science – VECPAR 2016 ISBN: 9783319619811
VECPAR
VECPAR
One of the greatest challenges in computational science and engineering today is how to combine complex data with complex models to create better predictions. This challenge cuts across every application area within CS&E, from geosciences, materials,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::568c316e74ed39f34344e3060dcb2160
https://doi.org/10.1007/978-3-319-61982-8_1
https://doi.org/10.1007/978-3-319-61982-8_1
Publikováno v:
Journal of Computational Physics. 274:898-919
A new parallel discontinuous Galerkin solver, called ArcOn, is developed to describe the intermittent turbulent transport of filamentary blobs in the scrape-off layer (SOL) of fusion plasma. The model is comprised of an elliptic subsystem coupled to
Autor:
Carol S. Woodward, Efthimios Kaxiras, Reed M. Maxwell, Alice Koniges, John B. Bell, Glenn E. Hammond, John H. Magerlein, Amanda Randles, Alain Clo, Ammar Hakim, Brendan Sheehan, Timothy D. Scheibe, P. Aaron Lott, Xiangmin Jiao, Barry Smith, Michael Pernice, Andrew R. Siegel, Donald Estep, Michael McCourt, Jed Brown, Glen A. Hansen, Eric Myra, Kihwan Lee, Dinesh K. Kaushik, Roger P. Pawlowski, Barbara Wohlmuth, Tobin Isaac, Jeffrey M. Connors, Mark S. Shephard, Emil M. Constantinescu, Miriam Mehl, Béatrice Rivière, David E. Keyes, Daniel R. Reynolds, Katherine J. Evans, Cian R. Wilson, Xian-Zhu Tang, William Gropp, Charbel Farhat, Kirk E. Jordan, Ulrich Rüde, Qiming Lu, Judith Hill, John N. Shadid, Lois Curfman McInnes
Publikováno v:
The International Journal of High Performance Computing Applications. 27:4-83
We consider multiphysics applications from algorithmic and architectural perspectives, where “algorithmic” includes both mathematical analysis and computational complexity, and “architectural” includes both software and hardware environments.