Roman Iakymchuk

According to our database, Roman Iakymchuk authored at least 29 papers between 2010 and 2024.

Collaborative distances:

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

2024

General framework for re-assuring numerical reliability in parallel Krylov solvers: A case of bi-conjugate gradient stabilized methods.

Roman Iakymchuk, Stef Graillat, José Ignacio Aliaga

Int. J. High Perform. Comput. Appl., January, 2024

2023

General framework for re-assuring numerical reliability in parallel Krylov solvers: A case of BiCGStab methods.

Roman Iakymchuk, José Ignacio Aliaga

CoRR, 2023

2022

General Framework for Deriving Reproducible Krylov Subspace Algorithms: BiCGStab Case.

Roman Iakymchuk, Stef Graillat, José Ignacio Aliaga

Proceedings of the Parallel Processing and Applied Mathematics, 2022

2021

Gauss-Newton-Secant Method for Solving Nonlinear Least Squares Problems under Generalized Lipschitz Conditions.

Ioannis K. Argyros, Stepan Shakhno, Roman Iakymchuk, Halyna Yarmola, Michael I. Argyros

Axioms, 2021

Efficient and Eventually Consistent Collective Operations.

Roman Iakymchuk, Amândio Faustino, Andrew P. J. Emerson, João Barreto, Valeria Bartsch, Rodrigo Rodrigues, José C. Monteiro

Proceedings of the IEEE International Parallel and Distributed Processing Symposium Workshops, 2021

Conjugate Gradient Solvers with High Accuracy and Bit-wise Reproducibility between CPU and GPU using Ozaki scheme.

Daichi Mukunoki, Katsuhisa Ozaki, Takeshi Ogita, Roman Iakymchuk

Proceedings of the HPC Asia 2021: The International Conference on High Performance Computing in Asia-Pacific Region, 2021

2020

Reproducibility strategies for parallel Preconditioned Conjugate Gradient.

Roman Iakymchuk, Maria Barreda, Matthias Wiesenberger, José Ignacio Aliaga, Enrique S. Quintana-Ortí

J. Comput. Appl. Math., 2020

Reproducibility of parallel preconditioned conjugate gradient in hybrid programming environments.

Roman Iakymchuk, María Barreda Vayá, Stef Graillat, José Ignacio Aliaga, Enrique S. Quintana-Ortí

Int. J. High Perform. Comput. Appl., 2020

AllScale toolchain pilot applications: PDE based solvers using a parallel development environment.

Fearghal O'Donncha, Roman Iakymchuk, Albert Akhriev, Philipp Gschwandtner, Peter Thoman, Thomas Heller, Xavier Aguilar, Kiril Dichev, Charles Gillan, Stefano Markidis, Erwin Laure, Emanuele Ragnoli, Vassilis Vassiliadis, Michael A. Johnston, Herbert Jordan, Thomas Fahringer

Comput. Phys. Commun., 2020

Reproducibility of Parallel Preconditioned Conjugate Gradient in Hybrid Programming Environments.

Roman Iakymchuk, Maria Barreda, Stef Graillat, José Ignacio Aliaga, Enrique S. Quintana-Ortí

CoRR, 2020

White Paper from Workshop on Large-scale Parallel Numerical Computing Technology (LSPANC 2020): HPC and Computer Arithmetic toward Minimal-Precision Computing.

Roman Iakymchuk, Daichi Mukunoki, Artur Podobas, Fabienne Jézéquel, Toshiyuki Imamura, Norihisa Fujita, Jens Huthmann, Shuhei Kudo, Yiyu Tan, Jens Domke, Kai Torben Ohlhus, Takeshi Fukaya, Takeo Hoshi, Yuki Murakami, Maho Nakata, Takeshi Ogita, Kentaro Sano, Taisuke Boku

CoRR, 2020

Can We Avoid Rounding-Error Estimation in HPC Codes and Still Get Trustworthy Results?

Fabienne Jézéquel, Stef Graillat, Daichi Mukunoki, Toshiyuki Imamura, Roman Iakymchuk

Proceedings of the Software Verification - 12th International Conference, 2020

2019

Interoperability strategies for GASPI and MPI in large-scale scientific applications.

Christian Simmendinger, Roman Iakymchuk, Luis Cebamanos, Dana Akhmetova, Valeria Bartsch, Tiberiu Rotaru, Mirko Rahn, Erwin Laure, Stefano Markidis

Int. J. High Perform. Comput. Appl., 2019

Hierarchical approach for deriving a reproducible unblocked LU factorization.

Roman Iakymchuk, Stef Graillat, David Defour, Enrique S. Quintana-Ortí

Int. J. High Perform. Comput. Appl., 2019

Reproducibility, accuracy and performance of the Feltor code and library on parallel computer architectures.

Matthias Wiesenberger, Lukas Einkemmer, Markus Held, Albert Gutierrez-Milla, Xavier Saez, Roman Iakymchuk

Comput. Phys. Commun., 2019

2018

A taxonomy of task-based parallel programming technologies for high-performance computing.

Peter Thoman, Kiril Dichev, Thomas Heller, Roman Iakymchuk, Xavier Aguilar, Khalid Hasanov, Philipp Gschwandtner, Pierre Lemarinier, Stefano Markidis, Herbert Jordan, Thomas Fahringer, Kostas Katrinis, Erwin Laure, Dimitrios S. Nikolopoulos

J. Supercomput., 2018

Efficient Algorithms for Collective Operations with Notified Communication in Shared Windows.

Muhammed Abdullah Al Ahad, Christian Simmendinger, Roman Iakymchuk, Erwin Laure, Stefano Markidis

Proceedings of the 2018 IEEE/ACM Parallel Applications Workshop, Alternatives To MPI, 2018

2017

A Taxonomy of Task-Based Technologies for High-Performance Computing.

Peter Thoman, Khalid Hasanov, Kiril Dichev, Roman Iakymchuk, Xavier Aguilar, Philipp Gschwandtner, Pierre Lemarinier, Stefano Markidis, Herbert Jordan, Erwin Laure, Kostas Katrinis, Dimitrios S. Nikolopoulos, Thomas Fahringer

Proceedings of the Parallel Processing and Applied Mathematics, 2017

Interoperability of GASPI and MPI in Large Scale Scientific Applications.

Dana Akhmetova, Luis Cebamanos, Roman Iakymchuk, Tiberiu Rotaru, Mirko Rahn, Stefano Markidis, Erwin Laure, Valeria Bartsch, Christian Simmendinger

Proceedings of the Parallel Processing and Applied Mathematics, 2017

Towards Reproducible Blocked LU Factorization.

Roman Iakymchuk, Enrique S. Quintana-Ortí, Erwin Laure, Stef Graillat

Proceedings of the 2017 IEEE International Parallel and Distributed Processing Symposium Workshops, 2017

Performance Study of Multithreaded MPI and OpenMP Tasking in a Large Scientific Code.

Dana Akhmetova, Roman Iakymchuk, Örjan Ekeberg, Erwin Laure

Proceedings of the 2017 IEEE International Parallel and Distributed Processing Symposium Workshops, 2017

2016

A Performance Characterization of Streaming Computing on Supercomputers.

Stefano Markidis, Ivy Bo Peng, Roman Iakymchuk, Erwin Laure, Gokcen Kestor, Roberto Gioiosa

Proceedings of the International Conference on Computational Science 2016, 2016

2015

Numerical reproducibility for the parallel reduction on multi- and many-core architectures.

Caroline Collange, David Defour, Stef Graillat, Roman Iakymchuk

Parallel Comput., 2015

Reproducible Triangular Solvers for High-Performance Computing.

Roman Iakymchuk, David Defour, Caroline Collange, Stef Graillat

Proceedings of the 12th International Conference on Information Technology, 2015

2014

Reproducible and Accurate Matrix Multiplication.

Roman Iakymchuk, David Defour, Caroline Collange, Stef Graillat

Proceedings of the Scientific Computing, Computer Arithmetic, and Validated Numerics, 2014

2012

Performance modeling and prediction for linear algebra algorithms.

Roman Iakymchuk

PhD thesis, 2012

Modeling performance through memory-stalls.

Roman Iakymchuk, Paolo Bientinesi

SIGMETRICS Perform. Evaluation Rev., 2012

2011

Improving high-performance computations on clouds through resource underutilization.

Roman Iakymchuk, Jeff Napper, Paolo Bientinesi

Proceedings of the 2011 ACM Symposium on Applied Computing (SAC), TaiChung, Taiwan, March 21, 2011

2010

HPC on Competitive Cloud Resources.

Paolo Bientinesi, Roman Iakymchuk, Jeff Napper

Proceedings of the Handbook of Cloud Computing., 2010