Roman Iakymchuk

39 papers C 1Misc 2Journal 21Unranked 13

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Enabling mixed-precision in spectral element codes. Future Gener. Comput. Syst. Yanxiang Chen, Pablo de Oliveira Castro, Paolo Bientinesi, Niclas Jansson, Roman Iakymchuk
2026	—	`conf`	Harvesting energy consumption on European HPC systems: Sharing Experience from the CEEC project. SCA/HPC Asia Workshops Kajol Kulkarni, Samuel Kemmler, Anna Schwarz, Gülçin Gedik, Yanxiang Chen, Dimitrios Papageorgiou, Ioannis Kavroulakis, Roman Iakymchuk
2025	J	`jnl`	Enabling Mixed-Precision in Computational Fluids Dynamics Codes. CoRR Yanxiang Chen, Pablo de Oliveira Castro, Paolo Bientinesi, Niclas Jansson, Roman Iakymchuk
2025	J	`jnl`	Harvesting energy consumption on European HPC systems: Sharing Experience from the CEEC project. CoRR Kajol Kulkarni, Samuel Kemmler, Anna Schwarz, Gulcin Gedik, Yanxiang Chen, Dimitrios Papageorgiou, Ioannis Kavroulakis, Roman Iakymchuk
2024	—	`conf`	Enabling Mixed-Precision with the Help of Tools: A Nekbone Case Study. PPAM (1) Yanxiang Chen, Pablo de Oliveira Castro, Paolo Bientinesi, Roman Iakymchuk
2024	J	`jnl`	Enabling mixed-precision with the help of tools: A Nekbone case study. CoRR Yanxiang Chen, Pablo de Oliveira Castro, Paolo Bientinesi, Roman Iakymchuk
2024	J	`jnl`	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. Roman Iakymchuk, Stef Graillat, José Ignacio Aliaga
2024	J	`jnl`	Robustness and Accuracy in Pipelined Bi-Conjugate Gradient Stabilized Method: A Comparative Study. CoRR Mykhailo Havdiak, Jose I. Aliaga, Roman Iakymchuk
2024	—	`conf`	Robustness and Accuracy in Pipelined Bi-conjugate Gradient Stabilized Methods. ICCS (3) Mykhailo Havdiak, José Ignacio Aliaga, Roman Iakymchuk
2024	J	`jnl`	Verificarlo CI: continuous integration for numerical optimization and debugging. CoRR Aurélien Delval, François Coppens, Eric Petit, Roman Iakymchuk, Pablo de Oliveira Castro
2023	J	`jnl`	General framework for re-assuring numerical reliability in parallel Krylov solvers: A case of BiCGStab methods. CoRR Roman Iakymchuk, José Ignacio Aliaga
2022	J	`jnl`	Efficient and Eventually Consistent Collective Operations. CoRR Roman Iakymchuk, Amândio Faustino, Andrew P. J. Emerson, João Barreto, Valeria Bartsch, Rodrigo Rodrigues, José C. Monteiro
2022	—	`conf`	General Framework for Deriving Reproducible Krylov Subspace Algorithms: BiCGStab Case. PPAM (1) Roman Iakymchuk, Stef Graillat, José Ignacio Aliaga
2021	C	`conf`	Conjugate Gradient Solvers with High Accuracy and Bit-wise Reproducibility between CPU and GPU using Ozaki scheme. HPC Asia Daichi Mukunoki, Katsuhisa Ozaki, Takeshi Ogita, Roman Iakymchuk
2021	—	`conf`	Efficient and Eventually Consistent Collective Operations. IPDPS Workshops Roman Iakymchuk, Amândio Faustino, Andrew P. J. Emerson, João Barreto, Valeria Bartsch, Rodrigo Rodrigues, José C. Monteiro
2021	J	`jnl`	Gauss-Newton-Secant Method for Solving Nonlinear Least Squares Problems under Generalized Lipschitz Conditions. Axioms Ioannis K. Argyros, Stepan Shakhno, Roman Iakymchuk, Halyna Yarmola, Michael I. Argyros
2020	J	`jnl`	AllScale toolchain pilot applications: PDE based solvers using a parallel development environment. Comput. Phys. Commun. 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
2020	—	`conf`	Can We Avoid Rounding-Error Estimation in HPC Codes and Still Get Trustworthy Results? VSTTE Fabienne Jézéquel, Stef Graillat, Daichi Mukunoki, Toshiyuki Imamura, Roman Iakymchuk
2020	J	`jnl`	Reproducibility of Parallel Preconditioned Conjugate Gradient in Hybrid Programming Environments. CoRR Roman Iakymchuk, Maria Barreda, Stef Graillat, José Ignacio Aliaga, Enrique S. Quintana-Ortí
2020	J	`jnl`	Reproducibility of parallel preconditioned conjugate gradient in hybrid programming environments. Int. J. High Perform. Comput. Appl. Roman Iakymchuk, María Barreda Vayá, Stef Graillat, José Ignacio Aliaga, Enrique S. Quintana-Ortí
2020	J	`jnl`	Reproducibility strategies for parallel Preconditioned Conjugate Gradient. J. Comput. Appl. Math. Roman Iakymchuk, Maria Barreda, Matthias Wiesenberger, José Ignacio Aliaga, Enrique S. Quintana-Ortí
2020	J	`jnl`	White Paper from Workshop on Large-scale Parallel Numerical Computing Technology (LSPANC 2020): HPC and Computer Arithmetic toward Minimal-Precision Computing. CoRR 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
2019	J	`jnl`	Hierarchical approach for deriving a reproducible unblocked LU factorization. Int. J. High Perform. Comput. Appl. Roman Iakymchuk, Stef Graillat, David Defour, Enrique S. Quintana-Ortí
2019	J	`jnl`	Interoperability strategies for GASPI and MPI in large-scale scientific applications. Int. J. High Perform. Comput. Appl. Christian Simmendinger, Roman Iakymchuk, Luis Cebamanos, Dana Akhmetova, Valeria Bartsch, Tiberiu Rotaru, Mirko Rahn, Erwin Laure, Stefano Markidis
2019	J	`jnl`	Reproducibility, accuracy and performance of the Feltor code and library on parallel computer architectures. Comput. Phys. Commun. Matthias Wiesenberger, Lukas Einkemmer, Markus Held, Albert Gutierrez-Milla, Xavier Saez, Roman Iakymchuk
2018	J	`jnl`	A taxonomy of task-based parallel programming technologies for high-performance computing. J. Supercomput. 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
2018	—	`conf`	Efficient Algorithms for Collective Operations with Notified Communication in Shared Windows. PAW-ATM@SC Muhammed Abdullah Al Ahad, Christian Simmendinger, Roman Iakymchuk, Erwin Laure, Stefano Markidis
2017	—	`conf`	A Taxonomy of Task-Based Technologies for High-Performance Computing. PPAM (2) 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
2017	—	`conf`	Interoperability of GASPI and MPI in Large Scale Scientific Applications. PPAM (2) Dana Akhmetova, Luis Cebamanos, Roman Iakymchuk, Tiberiu Rotaru, Mirko Rahn, Stefano Markidis, Erwin Laure, Valeria Bartsch, Christian Simmendinger
2017	—	`conf`	Performance Study of Multithreaded MPI and OpenMP Tasking in a Large Scientific Code. IPDPS Workshops Dana Akhmetova, Roman Iakymchuk, Örjan Ekeberg, Erwin Laure
2017	—	`conf`	Towards Reproducible Blocked LU Factorization. IPDPS Workshops Roman Iakymchuk, Enrique S. Quintana-Ortí, Erwin Laure, Stef Graillat
2016	Misc	`conf`	A Performance Characterization of Streaming Computing on Supercomputers. ICCS Stefano Markidis, Ivy Bo Peng, Roman Iakymchuk, Erwin Laure, Gokcen Kestor, Roberto Gioiosa
2015	J	`jnl`	Numerical reproducibility for the parallel reduction on multi- and many-core architectures. Parallel Comput. Caroline Collange, David Defour, Stef Graillat, Roman Iakymchuk
2015	—	`conf`	Reproducible Triangular Solvers for High-Performance Computing. ITNG Roman Iakymchuk, David Defour, Caroline Collange, Stef Graillat
2014	—	`conf`	Reproducible and Accurate Matrix Multiplication. SCAN Roman Iakymchuk, David Defour, Caroline Collange, Stef Graillat
2012	J	`jnl`	Modeling performance through memory-stalls. SIGMETRICS Perform. Evaluation Rev. Roman Iakymchuk, Paolo Bientinesi
2012	—	`—`	Performance modeling and prediction for linear algebra algorithms. Roman Iakymchuk
2011	Misc	`conf`	Improving high-performance computations on clouds through resource underutilization. SAC Roman Iakymchuk, Jeff Napper, Paolo Bientinesi
2010	—	`ch.`	HPC on Competitive Cloud Resources. Handbook of Cloud Computing Paolo Bientinesi, Roman Iakymchuk, Jeff Napper