Roman Iakymchuk

ORCID

Publication Activity (10 Years)

Years Active: 2011-2024
Publications (10 Years): 27

Top Venues

CoRR

Int. J. High Perform. Comput. Appl.

IPDPS Workshops

PPAM (2)

RWTH Aachen University (PHD)

Education History

RWTH Aachen University

PHD

Publications

Aurélien Delval, François Coppens, Eric Petit, Roman Iakymchuk, Pablo de Oliveira Castro
Verificarlo CI: continuous integration for numerical optimization and debugging. CoRR (2024)
Mykhailo Havdiak, José Ignacio Aliaga, Roman Iakymchuk
Robustness and Accuracy in Pipelined Bi-conjugate Gradient Stabilized Methods. ICCS (3) (2024)
Yanxiang Chen, Pablo de Oliveira Castro, Paolo Bientinesi, Roman Iakymchuk
Enabling mixed-precision with the help of tools: A Nekbone case study. CoRR (2024)
Roman Iakymchuk, Stef Graillat, José Ignacio Aliaga
General framework for re-assuring numerical reliability in parallel Krylov solvers: A case of bi-conjugate gradient stabilized methods. Int. J. High Perform. Comput. Appl. 38 (1) (2024)
Mykhailo Havdiak, Jose I. Aliaga, Roman Iakymchuk
Robustness and Accuracy in Pipelined Bi-Conjugate Gradient Stabilized Method: A Comparative Study. CoRR (2024)
Roman Iakymchuk, José Ignacio Aliaga
General framework for re-assuring numerical reliability in parallel Krylov solvers: A case of BiCGStab methods. CoRR (2023)
Roman Iakymchuk, Stef Graillat, José Ignacio Aliaga
General Framework for Deriving Reproducible Krylov Subspace Algorithms: BiCGStab Case. PPAM (1) (2022)
Roman Iakymchuk, Amândio Faustino, Andrew Emerson, João Barreto, Valeria Bartsch, Rodrigo Rodrigues, José C. Monteiro
Efficient and Eventually Consistent Collective Operations. CoRR (2022)
Ioannis K. Argyros, Stepan Shakhno, Roman Iakymchuk, Halyna Yarmola, Michael I. Argyros
Gauss-Newton-Secant Method for Solving Nonlinear Least Squares Problems under Generalized Lipschitz Conditions. Axioms 10 (3) (2021)
Roman Iakymchuk, Amândio Faustino, Andrew Emerson, João Barreto, Valeria Bartsch, Rodrigo Rodrigues, José C. Monteiro
Efficient and Eventually Consistent Collective Operations. IPDPS Workshops (2021)
Daichi Mukunoki, Katsuhisa Ozaki, Takeshi Ogita, Roman Iakymchuk
Conjugate Gradient Solvers with High Accuracy and Bit-wise Reproducibility between CPU and GPU using Ozaki scheme. HPC Asia (2021)
Fabienne Jézéquel, Stef Graillat, Daichi Mukunoki, Toshiyuki Imamura, Roman Iakymchuk
Can We Avoid Rounding-Error Estimation in HPC Codes and Still Get Trustworthy Results? VSTTE (2020)
Roman Iakymchuk, Maria Barreda Vayá, Stef Graillat, José Ignacio Aliaga, Enrique S. Quintana-Ortí
Reproducibility of parallel preconditioned conjugate gradient in hybrid programming environments. Int. J. High Perform. Comput. Appl. 34 (5) (2020)
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 Johnston, Herbert Jordan, Thomas Fahringer
AllScale toolchain pilot applications: PDE based solvers using a parallel development environment. Comput. Phys. Commun. 251 (2020)
Roman Iakymchuk, Maria Barreda, Matthias Wiesenberger, José Ignacio Aliaga, Enrique S. Quintana-Ortí
Reproducibility strategies for parallel Preconditioned Conjugate Gradient. J. Comput. Appl. Math. 371 (2020)
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
White Paper from Workshop on Large-scale Parallel Numerical Computing Technology (LSPANC 2020): HPC and Computer Arithmetic toward Minimal-Precision Computing. CoRR (2020)
Roman Iakymchuk, Maria Barreda, Stef Graillat, José Ignacio Aliaga, Enrique S. Quintana-Ortí
Reproducibility of Parallel Preconditioned Conjugate Gradient in Hybrid Programming Environments. CoRR (2020)
Christian Simmendinger, Roman Iakymchuk, Luis Cebamanos, Dana Akhmetova, Valeria Bartsch, Tiberiu Rotaru, Mirko Rahn, Erwin Laure, Stefano Markidis
Interoperability strategies for GASPI and MPI in large-scale scientific applications. Int. J. High Perform. Comput. Appl. 33 (3) (2019)
Matthias Wiesenberger, Lukas Einkemmer, Markus Held, Albert Gutierrez-Milla, Xavier Saez, Roman Iakymchuk
Reproducibility, accuracy and performance of the Feltor code and library on parallel computer architectures. Comput. Phys. Commun. 238 (2019)
Roman Iakymchuk, Stef Graillat, David Defour, Enrique S. Quintana-Ortí
Hierarchical approach for deriving a reproducible unblocked LU factorization. Int. J. High Perform. Comput. Appl. 33 (5) (2019)
Muhammed Abdullah Al Ahad, Christian Simmendinger, Roman Iakymchuk, Erwin Laure, Stefano Markidis
Efficient Algorithms for Collective Operations with Notified Communication in Shared Windows. PAW-ATM@SC (2018)
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
A taxonomy of task-based parallel programming technologies for high-performance computing. J. Supercomput. 74 (4) (2018)
Dana Akhmetova, Roman Iakymchuk, Örjan Ekeberg, Erwin Laure
Performance Study of Multithreaded MPI and OpenMP Tasking in a Large Scientific Code. IPDPS Workshops (2017)
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
A Taxonomy of Task-Based Technologies for High-Performance Computing. PPAM (2) (2017)
Roman Iakymchuk, Enrique S. Quintana-Ortí, Erwin Laure, Stef Graillat
Towards Reproducible Blocked LU Factorization. IPDPS Workshops (2017)
Dana Akhmetova, Luis Cebamanos, Roman Iakymchuk, Tiberiu Rotaru, Mirko Rahn, Stefano Markidis, Erwin Laure, Valeria Bartsch, Christian Simmendinger
Interoperability of GASPI and MPI in Large Scale Scientific Applications. PPAM (2) (2017)
Stefano Markidis, Ivy Bo Peng, Roman Iakymchuk, Erwin Laure, Gokcen Kestor, Roberto Gioiosa
A Performance Characterization of Streaming Computing on Supercomputers. ICCS (2016)
Roman Iakymchuk, David Defour, Sylvain Collange, Stef Graillat
Reproducible Triangular Solvers for High-Performance Computing. ITNG (2015)
Sylvain Collange, David Defour, Stef Graillat, Roman Iakymchuk
Numerical reproducibility for the parallel reduction on multi- and many-core architectures. Parallel Comput. 49 (2015)
Roman Iakymchuk, David Defour, Sylvain Collange, Stef Graillat
Reproducible and Accurate Matrix Multiplication. SCAN (2014)
Roman Iakymchuk, Paolo Bientinesi
Modeling performance through memory-stalls. SIGMETRICS Perform. Evaluation Rev. 40 (2) (2012)
Roman Iakymchuk, Jeff Napper, Paolo Bientinesi
Improving high-performance computations on clouds through resource underutilization. SAC (2011)

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Publication Activity (10 Years)

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Roman Iakymchuk