Onkar Sahni

According to our database, Onkar Sahni authored at least 29 papers between 2008 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Unstructured mesh tools for magnetically confined fusion system simulations.

Mark S. Shephard, Jacob S. Merson, Onkar Sahni, Angel E. Castillo, Aditya Y. Joshi, Dhyanjyoti D. Nath, Usman Riaz, E. Seegyoung Seol, Cameron W. Smith, Chonglin Zhang, Mark W. Beall, Ottmar Klaas, Rocco Nastasia, Saurabh Tendulkar

Eng. Comput., October, 2024

2023

A 3D unstructured mesh based particle tracking code for impurity transport simulation in fusion tokamaks.

Dhyanjyoti D. Nath, Vignesh V. Srinivasaragavan, Timothy Reed Younkin, Gerrett Diamond, Cameron W. Smith, Alyssa Hayes, Mark S. Shephard, Onkar Sahni

Comput. Phys. Commun., November, 2023

hPIC2: A hardware-accelerated, hybrid particle-in-cell code for dynamic plasma-material interactions.

Logan T. Meredith, M. Rezazadeh, M. F. Huq, Jon. T. Drobny, Vignesh V. Srinivasaragavan, Onkar Sahni, Davide Curreli

Comput. Phys. Commun., 2023

2022

A parallel interface tracking approach for evolving geometry problems.

Fan Yang, Anirban Chandra, Yu Zhang, Saurabh Tendulkar, Rocco Nastasia, Assad A. Oberai, Mark S. Shephard, Onkar Sahni

Eng. Comput., 2022

2021

CRIMSON: An open-source software framework for cardiovascular integrated modelling and simulation.

Christopher J. Arthurs, Rostislav Khlebnikov, Alex Melville, Marija Marcan, Alberto Gómez, Desmond Dillon-Murphy, Federica Cuomo, Miguel Silva Vieira, Jonas Schollenberger, Sabrina R. Lynch, Christopher Tossas-Betancourt, Kritika Iyer, Sara Hopper, Elizabeth Livingston, Pouya Youssefi, Alia Noorani, Sabrina Ben Ahmed, Foeke J. H. Nauta, Theodorus M. J. van Bakel, Yunus Ahmed, Petrus A. J. van Bakel, Jonathan P. Mynard, Paolo Di Achille, Hamid Gharahi, Kevin D. Lau, Vasilina Filonova, Miquel Aguirre, Nitesh Nama, Nan Xiao, Seungik Baek, Krishna C. Garikipati, Onkar Sahni, David Nordsletten, C. Alberto Figueroa

PLoS Comput. Biol., 2021

2019

A locally discontinuous ALE finite element formulation for compressible phase change problems.

Yu Zhang, Anirban Chandra, Fan Yang, Ehsan Shams, Onkar Sahni, Mark S. Shephard, Assad A. Oberai

J. Comput. Phys., 2019

2018

In-memory integration of existing software components for parallel adaptive unstructured mesh workflows.

Cameron W. Smith, Brian Granzow, Gerrett Diamond, Daniel Ibanez, Onkar Sahni, Kenneth E. Jansen, Mark S. Shephard

Concurr. Comput. Pract. Exp., 2018

2017

Parallel anisotropic mesh adaptation with boundary layers for automated viscous flow simulations.

Onkar Sahni, Aleksandr Ovcharenko, Kedar Chitale, Kenneth E. Jansen, Mark S. Shephard

Eng. Comput., 2017

Hammerstein-Wiener based reduced-order model for vortex-induced non-linear fluid-structure interaction.

Daniele Gallardo, Onkar Sahni, Riccardo Bevilacqua

Eng. Comput., 2017

2016

In-memory Integration of Existing Software Components for Parallel Adaptive Unstructured Mesh Workflows.

Cameron W. Smith, Brian Granzow, Dan Ibanez, Onkar Sahni, Kenneth E. Jansen, Mark S. Shephard

Proceedings of the XSEDE16 Conference on Diversity, 2016

2015

Enabling HPC simulation workflows for complex industrial flow problems.

Cameron W. Smith, Steven Tran, Onkar Sahni, Farhad Behafarid, Mark S. Shephard, Raminderjeet Singh

Proceedings of the 2015 XSEDE Conference: Scientific Advancements Enabled by Enhanced Cyberinfrastructure, St. Louis, MO, USA, July 26, 2015

2014

Variational Multiscale Analysis: The Fine-Scale Green's Function for Stochastic Partial Differential Equations.

Jayanth Jagalur-Mohan, Onkar Sahni, Alireza Doostan, Assad A. Oberai

SIAM/ASA J. Uncertain. Quantification, 2014

Scalable Implicit Flow Solver for Realistic Wing Simulations with Flow Control.

Michel E. Rasquin, Cameron W. Smith, Kedar Chitale, E. Seegyoung Seol, Benjamin A. Matthews, Jeffrey L. Martin, Onkar Sahni, Raymond M. Loy, Mark S. Shephard, Kenneth E. Jansen

Comput. Sci. Eng., 2014

2013

Adjoint consistency analysis of residual-based variational multiscale methods.

Jason E. Hicken, J. Li, Onkar Sahni, Assad A. Oberai

J. Comput. Phys., 2013

2012

Unstructured mesh partition improvement for implicit finite element at extreme scale.

Min Zhou, Onkar Sahni, Ting Xie, Mark S. Shephard, Kenneth E. Jansen

J. Supercomput., 2012

Neighborhood communication paradigm to increase scalability in large-scale dynamic scientific applications.

Aleksandr Ovcharenko, Daniel Ibanez, Fabien Delalondre, Onkar Sahni, Kenneth E. Jansen, Christopher D. Carothers, Mark S. Shephard

Parallel Comput., 2012

Tools to support mesh adaptation on massively parallel computers.

Min Zhou, Ting Xie, E. Seegyoung Seol, Mark S. Shephard, Onkar Sahni, Kenneth E. Jansen

Eng. Comput., 2012

Parallel Adaptive Boundary Layer Meshing for CFD Analysis.

Aleksandr Ovcharenko, Kedar Chitale, Onkar Sahni, Kenneth E. Jansen, Mark S. Shephard

Proceedings of the 21st International Meshing Roundtable, 2012

2011

Electronic poster: co-visualization of full data and in situ data extracts from unstructured grid cfd at 160k cores.

Michel E. Rasquin, Patrick Marion, Venkatram Vishwanath, Benjamin A. Matthews, Mark Hereld, Kenneth E. Jansen, Raymond M. Loy, Andrew C. Bauer, Min Zhou, Onkar Sahni, Jing Fu, Ning Liu, Christopher D. Carothers, Mark S. Shephard, Michael E. Papka, Kalyan Kumaran, Berk Geveci

Proceedings of the Conference on High Performance Computing Networking, Storage and Analysis, 2011

2010

Adjacency-based data reordering algorithm for acceleration of finite element computations.

Min Zhou, Onkar Sahni, Mark S. Shephard, Christopher D. Carothers, Kenneth E. Jansen

Sci. Program., 2010

Controlling Unstructured Mesh Partitions for Massively Parallel Simulations.

Min Zhou, Onkar Sahni, Karen D. Devine, Mark S. Shephard, Kenneth E. Jansen

SIAM J. Sci. Comput., 2010

Massively Parallel I/O for Partitioned Solver Systems.

Ning Liu, Jing Fu, Christopher D. Carothers, Onkar Sahni, Kenneth E. Jansen, Mark S. Shephard

Parallel Process. Lett., 2010

Scalable parallel I/O alternatives for massively parallel partitioned solver systems.

Jing Fu, Ning Liu, Onkar Sahni, Kenneth E. Jansen, Mark S. Shephard, Christopher D. Carothers

Proceedings of the 24th IEEE International Symposium on Parallel and Distributed Processing, 2010

Low-order nonlinear models for active flow control of a low L/D inlet duct.

Xiaoqing Ge, William Gressick, John T. Wen, Onkar Sahni, Kenneth E. Jansen

Proceedings of the American Control Conference, 2010

2009

Strong scaling analysis of a parallel, unstructured, implicit solver and the influence of the operating system interference.

Onkar Sahni, Christopher D. Carothers, Mark S. Shephard, Kenneth E. Jansen

Sci. Program., 2009

Automated adaptive cardiovascular flow simulations.

Onkar Sahni, Kenneth E. Jansen, Charles A. Taylor, Mark S. Shephard

Eng. Comput., 2009

Scalable implicit finite element solver for massively parallel processing with demonstration to 160K cores.

Onkar Sahni, Min Zhou, Mark S. Shephard, Kenneth E. Jansen

Proceedings of the ACM/IEEE Conference on High Performance Computing, 2009

Subdomain communication to increase scalability in large-scale scientific applications.

Aleksandr Ovcharenko, Onkar Sahni, Christopher D. Carothers, Kenneth E. Jansen, Mark S. Shephard

Proceedings of the 23rd international conference on Supercomputing, 2009

2008

Adaptive boundary layer meshing for viscous flow simulations.

Onkar Sahni, Kenneth E. Jansen, Mark S. Shephard, Charles A. Taylor, Mark W. Beall

Eng. Comput., 2008