Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Iakymchuk, Roman"'
Autor:
Delval, Aurélien, Coppens, François, Petit, Eric, Iakymchuk, Roman, Castro, Pablo de Oliveira
Floating-point accuracy is an important concern when developing numerical simulations or other compute-intensive codes. Tracking the introduction of numerical regression is often delayed until it provokes unexpected bug for the end-user. In this pape
Externí odkaz:
http://arxiv.org/abs/2407.08262
Mixed-precision computing has the potential to significantly reduce the cost of exascale computations, but determining when and how to implement it in programs can be challenging. In this article, we consider Nekbone, a mini-application for the CFD s
Externí odkaz:
http://arxiv.org/abs/2405.11065
In this article, we propose an accuracy-assuring technique for finding a solution for unsymmetric linear systems. Such problems are related to different areas such as image processing, computer vision, and computational fluid dynamics. Parallel imple
Externí odkaz:
http://arxiv.org/abs/2404.13216
Autor:
Iakymchuk, Roman, Aliaga, Jose I.
Parallel implementations of Krylov subspace methods often help to accelerate the procedure of finding an approximate solution of a linear system. However, such parallelization coupled with asynchronous and out-of-order execution often enlarge the non
Externí odkaz:
http://arxiv.org/abs/2302.04180
Autor:
Iakymchuk, Roman, Faustino, Amandio, Emerson, Andrew, Barreto, Joao, Bartsch, Valeria, Rodrigues, Rodrigo, Monteiro, Jose C.
Collective operations are common features of parallel programming models that are frequently used in High-Performance (HPC) and machine/ deep learning (ML/ DL) applications. In strong scaling scenarios, collective operations can negatively impact the
Externí odkaz:
http://arxiv.org/abs/2203.17063
The Preconditioned Conjugate Gradient method is often employed for the solution of linear systems of equations arising in numerical simulations of physical phenomena. While being widely used, the solver is also known for its lack of accuracy while co
Externí odkaz:
http://arxiv.org/abs/2005.07282
Autor:
Iakymchuk, Roman, Mukunoki, Daichi, Podobas, Artur, Jézéquel, Fabienne, Imamura, Toshiyuki, Fujita, Norihisa, Huthmann, Jens, Kudo, Shuhei, Tan, Yiyu, Domke, Jens, Ohlhus, Kai Torben, Fukaya, Takeshi, Hoshi, Takeo, Murakami, Yuki, Nakata, Maho, Ogita, Takeshi, Sano, Kentaro, Boku, Taisuke
In numerical computations, precision of floating-point computations is a key factor to determine the performance (speed and energy-efficiency) as well as the reliability (accuracy and reproducibility). However, precision generally plays a contrary ro
Externí odkaz:
http://arxiv.org/abs/2004.04628
Autor:
Wiesenberger, Matthias, Einkemmer, Lukas, Held, Markus, Gutierrez-Milla, Albert, Saez, Xavier, Iakymchuk, Roman
Feltor is a modular and free scientific software package. It allows developing platform independent code that runs on a variety of parallel computer architectures ranging from laptop CPUs to multi-GPU distributed memory systems. Feltor consists of bo
Externí odkaz:
http://arxiv.org/abs/1807.01971
Autor:
Iakymchuk, Roman, Barreda, Maria, Wiesenberger, Matthias, Aliaga, José I., Quintana-Ortí, Enrique S.
Publikováno v:
In Journal of Computational and Applied Mathematics June 2020 371
Autor:
O’Donncha, Fearghal, Iakymchuk, Roman, Akhriev, Albert, Gschwandtner, Philipp, Thoman, Peter, Heller, Thomas, Aguilar, Xavier, Dichev, Kiril, Gillan, Charles, Markidis, Stefano, Laure, Erwin, Ragnoli, Emanuele, Vassiliadis, Vassilis, Johnston, Michael, Jordan, Herbert, Fahringer, Thomas
Publikováno v:
In Computer Physics Communications June 2020 251