I.Konshin

English

Igor N. KONSHIN, Senior Research Scientist

Marchuk Institute of Numerical Mathematics of Russian Academy of Sciences
8 Gubkina street, Rm. 628, Moscow, Russia, 119333
☏ Tel.: +7 (495) 984-81-20*35-09 📠 Fax: +7 (495) 989-80-23
✉ Email: igor.konshin (аt) gmаil.соm

Web page: ik

0000-0003-4866-1388 orcid

6506946313 scopus

F-4340-2017 wos (publon, clarivate)

Links on:

Curriculum Vitae (PDF)

Navigation:
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Other affiliations:

Dorodnicyn Computing Centre, FRC CSC RAS (

Web page: ik)

Nuclear Safety Institute, RAS

Moscow Institute of Physics and Technology (National Research University)

Sechenov University (

Web page: ik)

Projects

INMOST (Integrated Numerical Modelling and Object-oriented Supercomputing Technologies) is a tool for supercomputer simulations characterized by a maximum generality of supported computational meshes, distributed data structure flexibility and cost-effectiveness, as well as crossplatform portability.
www.inmost.org

GeRa (Geomigration of Radionuclides) - is a high-tech program complex of three-dimensional hydrogeological modeling, developed by the Nuclear Safety Institute (IBRAE) RAS and Marchuk Institute of Numerical Mathematics (INM) RAS, commissioned by SC Rosatom, to efficiently solve geofiltration and geomigration problems in groundwater.
proryv2020.ru/kod-gera

Computational haemodynamics - 3D modelling of blood flow is based on the system of Navier-Stokes equations and allows us to describe blood flow in details in the domain of interest.
dodo.inm.ras.ru/research/haemodynamics

Research interests:

Numerical linear algebra
Solution of linear systems
Numerical modelling
Computational fluid dynamics
High performance computing
Numerical algorithms efficiency estimation

Ph.D. thesis reviews:

"Software package for numerical simulation of a joint ocean-atmosphere system on massively parallel computers", V.V. Kalmykov (INM RAS, Moscow, 2013)
"Numerical solutions of Stokes type equations with variable viscosity and applications", P.P. Grinevich (Moscow State University, Moscow, 2011)

Peers reviews in scientific journals:

Russian Journal of Numerical Analysis and Mathematical Modelling (JCR IF 2022: 1.150, SJR Q2)
Supercomputing Frontiers and Innovations (JCR IF 2018: 0.93, SJR Q2)
Communications in Computer and Information Science (JCR IF 2018: 0.774, SJR Q3)
AIMS Mathematics (JCR IF 2022: 2.739, SJR Q2)
Computational Mathematics and Mathematical Physics (JCR IF 2022: 0.769, SJR Q2)
Numerical Methods and Programming (RISC IF 2017: 0.436, VAK list)

Publications

Books:

Yu. Vassilevski, I. Konshin, G. Kopytov, K. Terekhov, INMOST - a software platform and graphical environment for development of parallel numerical models on general meshes. Lomonosov Moscow State Univ. Publ., Moscow, 2013, 144 p. (in Russian) (cover, PDF) (cited 5) (cited: 6) (cited: 1)

Journal publications:

I. Konshin, K. Terekhov, Adaptive block algebraic multigrid method for multiphysics problems, Computational Mathematics and Mathematical Physics, V. 65 (2025), No. 7, 1-23, Q3

I. Konshin, K. Terekhov, Yu. Vassilevski, Solving coupled problems of blood flow and coagulation in moving domains, II: Algebraic solvers and their parallel performance, Lobachevskii Journal of Mathematics, V. 46 (2025), No. 2, 1-12. Q2

I. Konshin, K. Terekhov, Yu. Vassilevski, Solving coupled problems of blood flow and coagulation in moving domains, I: Numerical models and simulations, Lobachevskii Journal of Mathematics, V. 46 (2025), No. 1, 243-263. https://doi.org/10.1134/S1995080224608567, Q2

F. Grigoriev, I. Kapyrin, I. Konshin, OpenMP parallel efficiency for DFM flow and transport model coupled with precipitation-dissolution reactions, Springer Lecture Notes in Computer Science, V. 15406, (2025), 390-404. https://doi.org/10.1007/978-3-031-78459-0_28, Q2

I. Kapyrin, I. Konshin, Parallel efficiency analysis of reactive transport simulations using the GeRa software, Springer Lecture Notes in Computer Science, V. 15406, (2025), 161-172. https://doi.org/10.1007/978-3-031-78459-0_12, Q2

I. Konshin, K. Terekhov, Yu. Vassilevski, Strategies with algebraic multigrid method for coupled systems, Lobachevskii Journal of Mathematics, V. 45 (2024), 251-261. https://doi.org/10.1134/S199508022401027X, Q2

I. Konshin, K. Terekhov, Block algebraic multigrid method for saddle-point problems of various physics. Springer Lecture Notes in Computer Science, V. 14388 (2023) 17-34. https://doi.org/10.1007/978-3-031-49432-1_2, Q2

M. Lipavskii, I. Konshin, Parallel implementation of multioperators-based scheme of the 16-th order for three-dimensional calculation of the jet flows, Springer Lecture Notes in Computer Science, V. 13708 (2022), 250-261. https://doi.org/10.1007/978-3-031-22941-1_18, Q2

I. Konshin, K. Terekhov, Distributed parallel bootstrap adaptive algebraic multigrid method, Springer Lecture Notes in Computer Science, V. 13708 (2022), 92-111. https://doi.org/10.1007/978-3-031-22941-1_7, Q2

I. Konshin, K. Terekhov, Solution of large-scale black oil recovery problem in parallel using INMOST platform, Springer Communications in Computer and Information Science, V. 1510 (2021), 240-255. https://doi.org/10.1007/978-3-030-92864-3_19, Q3

I. Konshin, V. Kramarenko, G. Neuvazhaev, K. Novikov, Parameters optimization of linear and nonlinear solvers in GeRa code, Springer Communications in Computer and Information Science, V. 1510 (2021), 212-226, https://doi.org/10.1007/978-3-030-92864-3_17, Q3

I. Konshin, K. Terekhov, Sparse system solution methods for complex problems. Springer Lecture Notes in Computer Science, V. 12942 (2021), 53-73. https://doi.org/10.1007/978-3-030-86359-3_5, Q2

I. Konshin, Students' favorite parallel programming practices, Springer Communications in Computer and Information Science, Vol. 1331 (2020), 511-523, https://www.doi.org/10.1007/978-3-030-64616-5_44, Q3

I. Konshin, K. Nikitin, K. Terekhov, Yu. Vassilevski, Parallel BIILU2-based iterative solution of linear systems in reservoir simulation: do optimal parameters exist? Springer Communications in Computer and Information Science, Vol. 1331 (2020), 74-85, https://www.doi.org/10.1007/978-3-030-64616-5_44, Q3

I. N. Konshin, K. M. Terekhov, Yu. V. Vassilevski, Mathematical and numerical modelling via INMOST software platform. Mathematica Montisnigri, Vol. XLVII (2020), 75-86
D. Bagaev, F. Grigoriev, I. Kapyrin, I. Konshin, V. Kramarenko, A. Plenkin, Improving parallel efficiency of calculations in GeRa for complex hydrogeological problems, Springer Communications in Computer and Information Science (2019), V. 1129, 265-277 (JCR IF 2018: 0.17, SJR Q3)
I. Konshin, Efficiency of basic linear algebra operations on parallel computers, Springer Communications in Computer and Information Science (2019), V. 1129, 26-38 (JCR IF 2018: 0.17, SJR Q3)
I. Konshin, M. Olshanskii, Yu. Vassilevski, An algebraic solver for the Oseen problem with application to hemodynamics. Computational Methods in Applied Sciences (2019), V. 47, 339-357. (JCR IF 2017: 0.17, SJR Q3)
I. Konshin, Efficiency estimation for the mathematical physics algorithms for distributed memory computers, Springer Communications in Computer and Information Science (2019), V. 965, 63-75 (JCR IF 2017: 0.17, SJR Q3)
I. Kapyrin, I. Konshin, V. Kramarenko, F. Grigoriev, Modeling groundwater flow in unconfined conditions of variable density solutions in dual-porosity media using the GeRa code, Springer Communications in Computer and Information Science (2019), V. 965, 266-278 (JCR IF 2017: 0.17, SJR Q3)
V. K. Kramarenko, Yu. A. Kuznetsov, I. N. Konshin, Parallel block-diagonal preconditioner with projectors for diffusion equation, Herald of Computer and Information Technologies, (2018), No. 11, 3-10 (in Russian). (URL) VAK
I. V. Kapyrin, I. N. Konshin, G. V. Kopytov, V. K. Kramarenko, Parallel computations in the hydrogeological computational code GeRa: organization and efficiency, Numer. Meth. Progr. (2018) V. 19, 356-367 (in Russian). (URL, PDF) VAK
A. Antonov, A. Frolov, I. Konshin, V. Voevodin, Hierarchical domain representation in the AlgoWiki encyclopedia: From problems to implementations, Springer Communications in Computer and Information Science, 2018, V. 910, 3-15 (JCR IF 2017: 0.17, SJR Q3, URL, PDF)
I. Konshin, M. Olshanskii, Yu. Vassilevski, LU factorizations and ILU preconditioning for stabilized discretizations of incompressible Navier-Stokes equations, Numer. Linear Algebra Appl. (2017), V. 24, N. 3, e2085. (JCR IF 2017: 1.281, SJR Q1, PDF) (cited: 1) (cited: 7)
I. Konshin, I. Kapyrin, Scalable computations of GeRa code on the base of software platform INMOST, Lecture Notes in Computer Science (2017), V. 10421, 433-445 (JCR IF 2017: 0.29, SJR Q2, URL, PDF) (cited: 3)
D. V. Bagaev, I. N. Konshin, K. D. Nikitin, Dynamic optimization of linear solver parameters in mathematical modelling of unsteady processes, Springer Communications in Computer and Information Science (2017), V. 793, 54-66 (JCR IF 2017: 0.17, SJR Q3, PDF) (cited: 1)
V. Kramarenko, I. Konshin, Y. Vassilevski, Ani3D-extension of parallel platform INMOST and hydrodynamic applications, Springer Communications in Computer and Information Science (2017) V. 793, 219-228 (JCR IF 2017: 0.17, SJR Q3, PDF)
I. Konshin, Parallel computational models to estimate an actual speedup of analyzed algorithm. Springer Communications in Computer and Information Science (2017), V. 687, 304-317 (JCR IF 2017: 0.17, SJR Q3, PDF) (cited: 1) (cited: 3) (cited: 2) (cited: 2) (cited: 1)
A. Antonov, A. Frolov, H. Kobayashi, I. Konshin, A. Teplov, Vad. Voevodin, Vl. Voevodin, Parallel processing model for Cholesky decomposition algorithm in AlgoWiki project, Supercomputing Frontiers and Innovations (2016) V. 3, N. 3, 61-70 (JCR IF 2017: 0.3, SJR Q2, PDF) (cited: 3) (cited: 3) (cited: 3)
F. V. Grigoriev, I. V. Kapyrin, I. N. Konshin, Software platform INMOST in the GeRa code to operate with the distributed mesh data. Mathematica Montisnigri, (2016) Vol. XXXVI, 27-44 (in Russian). (PDF)
I. Konshin, I. Kapyrin, K. Nikitin, K. Terekhov, Application of the parallel INMOST platform to subsurface flow and transport modelling, Lecture Notes in Computer Science (2016), V. 9574. 277-286 (JCR IF 2017: 0.29, SJR Q2, PDF) (cited: 1) (cited: 1) (cited: 1) (cited: 3) (cited: 1)
A. V. Frolov, Vad. V. Voevodin, I. N. Konshin, A. M. Teplov, The study of the structural properties of the Cholesky factorization algorithm: from the long-known facts to the new conclusions. Vestnik UGATU (2015), V. 19, N. 4 (70), 149-162 (in Russian). (PDF)
A. A. Danilov, K. M. Terekhov, I. N. Konshin, Y. V. Vassilevski, INMOST parallel platform: framework for numerical modeling, Supercomputing Frontiers and Innovations (2015) V. 2, N. 4, 55-66 (JCR IF 2017: 0.3, SJR Q2, PDF) (cited: 4) (cited: 3) (cited: 4) (cited: 1)
I. N. Konshin, M. A. Olshanskii, Yu. V. Vassilevski, ILU preconditioners for nonsymmetric saddle-point matrices with application to the incompressible Navier-Stokes equations. SIAM J. Sci. Comp. (2015), V. 37, N. 5, A2171-A2197. (JCR IF 2017: 2.046, SJR Q1, PDF) (cited: 5) (cited: 11) (cited: 11) (cited: 12) (cited: 16) (cited: 12)
V. L. Yakushev, V. N. Simbirkin, A. V. Filimonov, P. A. Novikov, I. N. Konshin, G. B. Sushko, S. A. Kharchenko, Solution of ill conditioned symmetric SLAE for problems of building mechanics by parallel iterative methods, Vestnik Nizhegor. Univ. Lobachevskogo (2012), N. 4 (1), 238-246 (in Russian). (PDF) (cited: 5)
I. E. Kaporin, I. N. Kon'shin, Post-filtering of IC2-factors for load balancing in parallel preconditioning, Comp. Math. Math. Phys. (2009), V. 49, N. 6, 901-918 (JCR IF 2017: 0.677, SJR Q3, PDF) (cited: 1) (cited: 1) (cited: 2) (cited: 1)
I. E. Kaporin, I. N. Konshin, Load balancing of parallel block overlapped incomplete Cholesky preconditioning, Lecture Notes in Computer Science (2009), V. 5698, 304-315 (JCR IF 2017: 0.29, SJR Q2, PDF) (cited: 1) (cited:1) (cited: 2) (cited: 2) (cited: 1)
V. A. Garanzha, I. E. Kaporin, I. N. Konshin, Truncated Newton type solver with application to grid untangling problem, Numer. Linear Algebra Appl. (2004), V. 11, N. 5-6, 525-533 (PDF) (cited: 3)
I. E. Kaporin, I. N. Konshin, A parallel block overlap preconditioning with inexact submatrix inversion for linear elasticity problems, Numer. Linear Algebra Appl. (2002), V. 9, N. 2, 141-162 (PDF) (cited: 2) (cited: 10) (cited: 12) (cited: 13) (cited: 20) (cited: 11)
I. E. Kaporin, I. N. Kon'shin, Parallel solution of symmetric positive definite systems based on decomposition into overlapping blocks, Comput. Math. Math. Phys. (2001), V. 41, N. 2, 481-493 (JCR IF 2017: 0.677, SJR Q3, PDF) (cited: 2) (cited: 4) (cited: 7) (cited: 23)
I. E. Kaporin, I. N. Konshin, Parallel solution of large sparse SPD linear systems based on overlapping domain decomposition, Lecture Notes in Computer Science (1999), V. 1662, 436-446 (JCR IF 2017: 0.29, SJR Q2, PDF) (cited: 5) (cited: 5) (cited: 6) (cited: 8) (cited: 5)

Other publications (Proceedings, Preprints, Collected works):

D. Bagaev, F. Grigoriev, I. Kapyrin, V. Kramarenko, I. Konshin, Parallel efficiency of a hydrogeological simulation in GeRa, In: Proc. of Fourth German-Russian Workshop on Numerical Methods and Mathematical Modelling in Geophysical and Biomedical Sciences, October 7-9, 2019, Vladivostok.

I. Konshin, BIILU2 preconditioning for parallel solution of sparse linear systems. In: Proc. of The Third Int. Conf. on Multiscale Methods and Large-Scale Scientific Computing, October 7-11, 2019, Vladivostok.

V. K. Kramarenko, K. M. Terekhov, Yu. V. Vassilevski, I. N. Konshin, Software platform INMOST for distributed mathematical modeling, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 23-24, 2019, Moscow, Russia), Moscow State University, 2019, pp. 210-211 (PDF)
I. N. Konshin, I. V. Kapyrin, V. K. Kramarenko, F. V. Grigoriev, D. V. Bagaev, Improvement of paralel computations efficiency for complex hydrogeological problems, In: Proc. of XVIII All-Russian Conference-School for Young Researchers "Modern Problems of Mathematical Modeling", September 16-21, 2019, Abrau-Durso, 2019 (in Russian) (PDF)
I. Konshin, BIILU2 preconditioning for parallel solution of linear systems, In: Proc. of The Russian-Chinese Workshop on Applied Linear Algebra (July 1, 2019), INM RAS, 2019, Moscow.
D.V. Bagaev, I.N. Konshin, Dynamic optimization of linear solver parameters in modeling non-stationary processes, In: Abstracts of Lomonosov Readings 2019, Section of Computational Mathematics and Cybernetics (April 15-25, 2019), MaxPress, Moscow, 2019, pp. 19-20. (in Russian) (PDF)
F. V. Grigoriev, I. V. Kapyrin, I. N. Konshin, G. V. Kopytov, V. V. Suskin, Development of the GeRa integrated code to justify the safety of RW disposal facilities, Report collection of the V International Scientific Technical Conference: Innovative Projects and Technologies for Nuclear Energy (October 2-5, 2018, Moscow), 2018, 902-905 (in Russian) (PDF)
V. K. Kramarenko, Yu. A. Kuznetsov, I. N. Konshin, Parallel block-diagonal preconditioner with projectors for the diffusion problem, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 24-25, 2018, Moscow, Russia), Moscow State University, 2018, pp. 728-737 (in Russian) (PDF)
I. Kapyrin, I. Konshin, V. Kramarenko, F. Grigoriev, Modeling groundwater flow in unconfined conditions of variable density solutions in dual-porosity media using the GeRa code, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 24-25, 2018, Moscow, Russia), Moscow State University, 2018, 321-333 (PDF)
I. Konshin, Efficiency estimation for the mathematical physics algorithms for distributed memory computers, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 24-25, 2018, Moscow, Russia), Moscow State University, 2018, pp. 183-194 (PDF)
V. Kramarenko, I. Konshin, Y. Vassilevski, Ani3D-extension of parallel platform INMOST and hydrodynamic applications, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 25-26, 2017, Moscow, Russia), Moscow State University, Moscow, 2017, pp. 19-28 (PDF)
D. V. Bagaev, I. N. Konshin, K. D. Nikitin, Dynamic optimization of linear solver parameters in mathematical modelling of unsteady processes, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 25-26, 2017, Moscow, Russia), Moscow State University, Moscow, 2017, pp. 108-119 (PDF)
I. V. Kapyrin, I. N. Konshin, F. V. Grigoriev, Three-dimensional hydrogeological modeling in GeRa code, In: Proc. of VII scientific and practical conference on supercomputer technologies in the oil and gas industry. Mathematical methods, software and hardware (HPC-OilGas-2017), February 16-17, 2017, Moscow State University, Moscow, pp. 159-160 (in Russian) (URL)
D. V. Bagaev, I. N. Konshin, K. D. Nikitin, Solution of linear systems for multiphase flow problems in the framework of software platform INMOST, In: Proc. of VII scientific-practical conference on supercomputer technologies in the oil and gas industry. Mathematical methods, software and hardware (HPC-OilGas-2017), February 16-17, 2017, MSU, Moscow, pp. 154-158 (in Russian) (URL)
I. Konshin, M. Olshanskii, Y. Vassilevski, An algebraic solver for the Oseen problem with application to hemodynamics. Numerical Analysis & Scientific Computing Preprint Series, Department of Mathematics, University of Houston, Preprint No. 50, May, 2016, 19 p. (PDF)
I. Konshin, M. Olshanskii, Y. Vassilevski, LU factorizations and ILU preconditioning for stabilized discretizations of incompressible Navier-Stokes equations. Numerical Analysis & Scientific Computing Preprint Series, Department of Mathematics, University of Houston, Preprint No. 49, May, 2016, 22 p. (PDF)
Yu. V. Vasilevsky, M. A. Tolstykh, R. Yu. Fadeev, I. N. Konshin, I. V. Kapyrin, K. D. Nikitin, S. A. Goreinov, E. M. Volodin, E. V. Mortikov, Supercomputer technologies in problems of weather forecasting, climate modeling, oil exploration and nuclear safety at the Institute of Numerical Mathematics of the Russian Academy of Sciences, In: Proc. of V National Supercomputer Forum (NSCF’2016), 11.29-02.12.2016, Pereslavl-Zalessky, Ailamazyan Program Systems Institute of RAS, 2016, 3 p. (in Russian) (PDF)
A. I. Burachkovski, I. N. Konshin, Dynamic refining grids in the framework of software platform INMOST, In: Proc. of Int. Conf. Numerical Geometry, Grid Generation and Scientific Computing (NUMGRID2016), October 31 - November 2, 2016, Dorodnicyn Computing Center, FRC IC RAS, Moscow, 5 p. (in Russian) (PDF)
I. Konshin, Yu. Vassilevski, M. Olshanskii, Iterative solution of Oseen linear systems and applications to coronary blood flows, In: Proc. VIII Conf. Mathematical Models and Numerical Methods in Biology and Medicine, October 31 - November 3, 2016, INM RAS, Moscow. (slides)
I. N. Konshin, Parallel computational models to estimate an actual speedup of analyzed algorithm. In: Proc. of the Int. Conf. Russian Supercomputing Days (September 26-27, 2016, Moscow, Russia), Moscow State University, Moscow, 2016, pp. 269-280 (in Russian) (PDF)
I. N. Konshin, V. K. Kramarenko, K. D. Nikitin, K. M. Terekhov, Modeling of multiphase flows based on parallel platform INMOST. In: Proc. of the Int. Conf. Russian Supercomputing Days (September 26-27, 2016, Moscow, Russia), Moscow State University, Moscow, 2016, pp. 288-293 (in Russian) (PDF)
D. V. Bagaev, A. I. Burachkovski, A. A. Danilov, I. N. Konshin, K. D. Terekhov, Development of INMOST software platform: dynamic grids, linear solvers and automatic differentiation, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 26-27, 2016, Moscow, Russia), Moscow State University, Moscow, 2016, pp. 543-555 (in Russian) (PDF) (cited: 1)
I. V. Kapyrin, F. V. Grigoriev, I. N. Konshin, Geomigration and geofiltration modelling in the numerical code GeRa, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 26-27, 2016, Moscow, Russia), Moscow State University, Moscow, 2016, pp. 133-139 (in Russian) (PDF) (cited: 3)
Yu. V. Vassilevski, I. V. Kapyrin, I. N. Konshin, Development of GeRa code based on parallel INMOST software platform using distributed meshes of general kind. In: Proc. of XIV Int. Seminar Mathematical Models & Modeling in Laser Plasma Processes & Advanced Science Technologies (LPpM3), July 4-9, 2016, Moscow, p. 93 (in Russian) (URL)
I. N. Konshin, K. D. Nikitin, Modeling of multiphase flow based on platform INMOST: linear systems solution, In: Proc. of VI scientific-practical conference on supercomputer technologies in the oil and gas industry. Mathematical methods, software and hardware (HPC-OilGas-2016), February 10-12, 2016, MSU, Moscow, pp. 83-87 (in Russian) (PDF)
Yu. V. Vassilevski, I. N. Konshin, V. K. Kramarenko, K. D. Nikitin, Modeling of multiphase flow based on platform INMOST: nonlinear discretization scheme, In: Proc. of VI scientific-practical conference on supercomputer technologies in the oil and gas industry. Mathematical methods, software and hardware (HPC-OilGas-2016), February 10-12, 2016, MSU, Moscow, pp. 80-83 (in Russian) (PDF)
A. V. Rastorguev, G. V. Kopytov, I. V. Kapyrin, I. N. Konshin, New approaches to hydrogeological modeling in the GeRa code, In: Proc. of the 10th anniversary scientific conf. Radiation Protection and Radiation Safety in Nuclear Technologies, MEPhI publ., Obninsk, 2015, pp. 59-60 (in Russian) (URL)
A. V. Frolov, Vad. V. Voevodin, I. N. Konshin, A. M. Teplov, Investigation of the structural properties of the Cholesky decomposition algorithm: from long-known facts to new findings, In: Proc. of Int. Sci. Conf. Parallel Computational Technologies (PaVT'2015), March 31 - April 2, 2015, Ekaterinburg, 2015, pp. 320-331 (in Russian) (PDF) (cited: 1)
A. Danilov, K. Terekhov, I. Konshin, Yu. Vassilevski, The structure of INMOST program platform and its usage for numerical modeling problems, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 28-29, 2015, Moscow), Moscow State Univ. Publ., Moscow, 2015, pp. 104-109 (PDF) (cited: 1) (cited: 1)
I. Konshin, I. Kaporin, K. Nikitin, Yu. Vassilevski, Parallel linear systems solution for multiphase flow problems in the INMOST framework, In: Proc. of the Int. Conf. Russian Supercomputing Days (September 28-29, 2015, Moscow), Moscow State Univ. Publ., Moscow, 2015, pp. 96-103 (PDF) (cited: 1) (cited: 5) (cited: 3)
I. Kapyrin, I. Konshin, G. Kopytov, K. Nikitin, Y. Vassilevski, Hydrogeological modeling in radioactive waste disposal safety assessment using the GeRa code. In: Proc. of the Int. Conf. Russian Supercomputing Days (September 28-29, 2015, Moscow), Moscow State University Publ., Moscow, 2015, pp. 122-132 (in Russian) (PDF) (cited: 1) (cited: 2)
Yu. V. Vassilevski, I. V. Kapyrin, I. N. Konshin, INMOST software platform based development of parallel numerical models on general meshes. In: Proc. of XIII Int. Seminar "Mathematical Models & Modeling in Laser Plasma Processes & Advanced Science Technologies" (LPpM3) (May 30 - June 6, 2015, Petrovac, Montenegro), AP Print, Podgorica, Montenegro, 2015, p. 69. (URL)
Yu. V. Vassilevski, I. N. Konshin, K. D. Nikitin, K. M. Terekhov, Development of parallel numerical models of multiphase flow based on software platform INMOST. In: Proc. of V Scientific-Practical Conference on Supercomputer Technologies in the Oil and Gas Industry. Mathematical Methods, Software and Hardware (HPC-OilGas-2015). February 12-13, 2015, MSU, Moscow, pp. 71-75 (in Russian) (PDF)
I. N. Konshin, M. A. Olshanskii, Yu. V. Vassilevski, ILU preconditioners for non-symmetric saddle point matrices with application to the incompressible Navier-Stokes equations, Numerical Analysis & Scientific Computing Preprint Series, Department of Mathematics, University of Houston, Preprint No. 34, March, 2015, 25 p. (PDF)
I. V. Kapyrin, Yu. V. Vassilevski, A. V. Rastorguev, S. S. Utkin, I. N. Konshin, G. V. Kopytov, E. A. Savelieva, V. A. Ivanov, Integral GeRa code for solving problems of migration of radionuclides in the underground hydrosphere, In: Proc. of Conf. on Development, Verification and Certification of Software for Simulation of Undeground Flow and Geomigration at the Facilities of Rosatom Corporation, Moscow, 2014 (in Russian)
Yu. G. Bartenev, V. A. Erzunov, A. P. Karpov, D. A. Petrov, I. A. Pishchulin, E. B. Shanikova, I. E. Kaporin, O. Yu. Milyukova, S. A. Kharchenko, I. N. Konshin, I. B. Meerov, A. V. Sysoev, Complex of parallel solver libraries LParSol, version 3, In: Proc. of the XIV Int. Conf. High-Performance Parallel Computing on Cluster Systems (HPC 2014), PNRPU publ. house, Perm, 2014, pp. 49-53 (in Russian) (PDF)
I. N. Konshin, G. B. Sushko, S. A. Kharchenko, Three-level MPI+TBB+CUDA parallel implementation of the block iterative algorithm for solution of SLAE for small-block unstructured sparse matrices, In: Proc. of the Int. Supercomputing Conf. "Scientific Service on the Internet: a Search for the New Solutions" (September 17-22, 2012, Novorossiysk), Publ. House of Moscow State Univ., Moscow, 2012, pp. 522-528 (in Russian) (PDF) (cited: 1)
I. N. Konshin, S. A. Kharchenko, A through parallel algorithm for constructing a second-order incomplete triangular factorization with dynamic selection of decomposition and ordering, In: Proc. of the Int. Supercomputing Conf. "Scientific Service on the Internet: a Search for New Solutions" (September 17-22, 2012, Novorossiysk), Publ. House of Moscow State Univ., Moscow, 2012, pp. 491-494 (in Russian) (PDF) (cited: 1)
V. L. Yakushev, V. N. Simbirkin, A. V. Filimonov, P. A. Novikov, I. N. Konshin, G. B. Sushko, S. A. Kharchenko, Solution of ill conditioned symmetric SLAE for problems of building mechanics by parallel iterative methods, In: Proc. of the Int. Supercomputing Conf. Scientific Service on the Internet: an Exaflop Future (September 19-24, 2011, Novorossiysk), Publ. House of Moscow State Univ., Moscow, 2011, pp. 333-342 (in Russian) (PDF) (cited: 3)
S. Kharchenko, I. Konshin, Hierarchical block partitioning for parallel solution of linear systems with SPD matrices, In: Proc. of III Int. Conf. on Matrix Methods in Mathematics and Applications, MMMA-2011, June 22-25, 2011, INM RAS, Moscow, pp. 82-83 (slides)
I. N. Konshin, Overlap construction for symmetric linear systems parallel solution, In: Proc. of Int. Conf. on Applied Mathematics and Computer Science dedicated to Academician A.A. Dorodnicyn’s 100-th Birthday Anniversary, Computing Centre of RAS, Moscow, December 7-11, 2010, pp. 117-118 (in Russian) (PDF)
N. N. Galimyanova, A. L. Ignatyev, I. N. Konshin, M. A. Posypkin, I. Kh. Sigal, Parallel algorithms for discrete optimization problems, In: Proc. of Int. Conf. on Applied Mathematics and Computer Science dedicated to Academician A.A. Dorodnicyn’s 100-th Birthday Anniversary, Computing Centre of RAS, Moscow, December 7-11, 2010, pp. 223-225 (PDF)
I. N. Konshin, Parallel solution methods for linear equations systems with SPD matrices on the base of additive overlaping decomposition. PhD Thesis, Dorodnicyn Computing Centre of Russ. Acad. Sci., Moscow, 2009, 138 p. (in Russian) (URL, autoref)
I. E. Kaporin, I. N. Konshin, Post-filtering of IC factors for load balancing in parallel preconditioned CG solvers, In: Numerical Geometry, Grid Generation, and High Performance Computing (Eds. V. A. Garanzha, Yu. G. Evtushenko, B. K. Soni, N. P. Weatherill), Proc. of Int. Conf. NUMGRID/VORONOI-2008, Moscow, 10-13 June, 2008, Moscow, Folium, pp. 158-164
I. E. Kaporin, I. N. Konshin, Recursive scaling, permutation and 2x2-block splitting in ILU preconditionings, In: Proc. of 2-nd International Conference on Matrix Methods and Operator Equations (July 23-27, 2007, Moscow), pp. 32-34 (PDF)
I. E. Kaporin, I. N. Konshin, Parallel conjugate gradient preconditioning via incomplete Cholesky of overlapping submatrices. In: Parallel Computational Fluid Dynamics 2003: Advanced Numerical Methods, Software and Applications (Eds. B. Chetverushkin, A. Ecer, N. Satofuka, J. Periaux, P. Fox), Elsevier B.V., Amsterdam, 2004, pp. 81-88 (cited: 1)
I. E. Kaporin, I. N. Konshin, Parallel solution of linear systems with the use of approximate factorization of overlapping blocks, In: Mathematical Modeling: Problems and Results, Nauka, Moscow, 2003, pp. 315-326 (in Russian) ISBN 5-02-006202-2 (URL)
V. A. Garanzha, I. E. Kaporin, I. N. Konshin, Parallel nonlinear solver for large-scale geometrical optimization problems, In: Proc. of Conference on Preconditioning methods for optimal control and constrained optimization problems, PMOCCO'2002, October 23-25, 2002 (Eds. O. Axelsson, B. Polman, S. Gololobov), Univ. of Nijmegen, Nijmegen, The Netherlands, 2002, pp. 28-29 (URL)
I. E. Kaporin, I. N. Konshin, Benchmark problems in linear elasticity: parallel solution, Tech. Report No. 0028, Department of Mathematics, University of Nijmegen, The Netherlands, December 2000, 22 p.
O. Axelsson, I. Kaporin, I. Konshin, A. Kucherov, M. Neytcheva, B. Polman, A. Yeremin, Comparison of algebraic solution methods on a set of benchmark problems in linear elasticity, Final Report of the STW project NNS, Vol. 4683, Univ. Nijmegen, Nijmegen, The Netherlands, 2000, 89 p. (cited: 7) (cited 3)
I. Kaporin, I. Konshin, Accuracy and efficiency of parallel implementation of matrix multiplication, In: Proc. of 6th International IMACS Conference on Applications of Computer Algebra, St. Petersburg, Russia, June 25-28, 2000, p. 11. (URL)
I. Konshin, A. Nikishin, A. Yeremin, M. Zatsepin, Numerical experiments with parallel sparse unsymmetric unstructured iterative solvers on network of highend workstations, In: Proc. of 8-th SIAM Conference on Parallel processing for Scientific Computing, March 14-17, 1997, Minneapolis, US, 1997. (URL)
V. A. Garanzha, I. V. Ibragimov, I. N. Konshin, V. N. Konshin, A. Yu. Yeremin, High order Pade-type approximation methods for incompressible 3D CFD problems on massively parallel computers, In: Parallel Computational Fluid Dynamics: Implementations and Results using Parallel Computers (Eds. A. Ecer, J. Periaux, N. Satofuka, S. Taylor), Elsevier Science B.V, 1996, pp. 199-205 (cited: 2)
I. V. Ibragimov, P. A. Kolesnikov, I. N. Konshin, N. E. Mikhailovsky, A. A. Nikishin, E. E. Tyrtyshnikov, A. Yu. Yeremin, Numerical experiments with industrial iterative solvers on massively parallel computers. I: Numerical experiments with the A_SPARSE solver on CRAY T3D, In: Proc. of the High Performance Computing Symposium'95, Phoenix, Arizona, USA, 1995, pp. 283-289
V. A. Garanzha, P. A. Kolesnikov, I. N. Konshin, V. N. Konshin, A. A. Nikishin, E. E. Tyrtyshnikov, A. Yu. Yeremin, Iterative solvers for coupled 3D incompressible flow problems, on vector-parallel computers and MPPs, In: Solution Techniques for Large-Scale CFD Problems (Ed. W. G. Habashi). John Wiley and Sons, New York, 1995, pp. 83-88
V. A. Garanzha, I. N. Konshin, V. N. Konshin, A. Yu. Yeremin, Aggregated iterative techniques for solving 3-D CFD problems on parallel and massively parallel computers, In: Proc. of the Int. Workshop on Solution Techniques for Large-Scale CFD Problems, September 26-28, 1994, Montreal, Quebec, Canada, 6 p.
V. A. Gushchin, I. N. Kononov, V. N. Konshin, I. N. Konshin, S. A. Aleksandrov, Numerical simulation and field measurements of air flow in clean rooms, In: Proc. of 3rd conf. Associations for the Control of Micropollution, June 7-10, 1993, ASINKOM-93, St. Petersburg, 1993, pp. 183-193 (in Russian)
I. N. Kononov, V. N. Konshin, I. N. Konshin, Numerical analysis of the air flow in a clean room, In: Proc. of 2nd Conference of the Association of Micro-Pollution Control Engineers, October 12-16, 1992, ASINCOM-92, Suzdal, 1992, 136-140 (in Russian)
V. A. Gushchin, I. N. Kononov, I. N. Konshin, V. N. Konshin, Parallel numerical modeling of clean room air flows, In: The third Russian-Japan joint symposium on CFD, Book of abstracts, Part II, August 25-30, 1992, Vladivostok, Russia, pp. 121-122
V. A. Gushchin, I. N. Kononov, V. N. Konshin, I. N. Konshin, A software package for assessing the aerodynamics of designed clean rooms, In: Proc. of 4th Scientific Tech. Conf. Achievements and Prospects of Technological Ecology of Microelectronics in Clean Rooms, June 25-26, 1992, MIET, Moscow, 1992, pp. 182-187 (in Russian)
I. N. Konshin, Optimization of multigrid methods of domain decomposition. In: Numerical Methods and Software (Ed. Yu. A. Kuznetsov), Dept. of Numer. Math. of USSR Acad. Sci., Moscow, 1990, 73-94 (in Russian) (cited: 1)
I. N. Konshin, S. A. Maliassov, On application of the domain decomposition method to a quantum mechanics problem, In: Adjoint Equations and Perturbation Algorithms (Eds. V. I. Agoshkov and V. P. Shutyaev), Dept. of Numer. Math. of USSR Acad. Sci., Moscow, 1988, pp. 92-98 (in Russian)
I. N. Konshin, Implementation of domain decomposition methods for computers with matrix processors. In: Methods of Mathematical Physics (Ed. Yu. A. Kuznetsov), Dept. of Numer. Math. of USSR Acad. Sci., Moscow, 1988, pp. 40-62 (in Russian)
I. N. Konshin, Block factorization methods on parallel computers for band SLAE of large dimension, In: Organization of Supercomputing, VINITI, Moscow, 1987, N.2184-B87, 7 p. (in Russian)

Program registration certificates:

2021, GeRa/V2 - a program for 3D geofiltration and geomigration modeling (certification passport No. 534-13.11.2021)
2020, GeRa/V2 - a program for three-dimensional geofiltration and geomigration modeling (registration certificate No. 2020611976)
2018, Geopolis - a program for geofiltration and geomigration modeling (certification passport No. 458-26.12.2018)
2018, GeRa/V2-University - program for three-dimensional geofiltration and geomigration modeling (registration certificate No. 2018615458)
2018, GeRa/V1 - program for three-dimensional geofiltration and geomigration modeling (registration certificate No. 2018616066)
2015, Parallel program code for solving three-dimensional filtering problems, version 1.0 (registration certificate No. 2015617399)
2014, Program for efficient parallel solution of linear algebraic systems of discretization of geofiltration and geomigration of radionuclides, version 2.0 (registration certificate No. 2014619661)
2009, PALP - parallel algorithm for solving linear programming problems (registration certificate No. 2009614914)

Certificates and diplomas:

2024, Russian Supercomputing Days Conference (diploma pdf)
2022, Russian Supercomputing Days Conference (diploma pdf)
2021, SIAT-Sechenov Competition on Numerical Modeling of Bioimpedance Analysis / The 3rd Russian-Chinese School on Mathematical Modeling and Parallel Computing (certificate pdf)
2021, Advanced training, MIPT (certificate pdf)
2019, Russian-Chinese School on biomedical engineering and mathematical modelling (certificate pdf)
2019, Advanced training, SU (свидетельство pdf)
2015, Russian Supercomputing Days Conference (diploma pdf)
2011, Advanced training, Massively parallel processes, architecture and programming environment Cuda (certificate pdf)

Courses of lectures:

MIPT (Moscow Institute of Physics and Technology, State University)

Department of Mathematical Foundations of Control, 2014 - present, course "Parallel computing methods"
Faculty of Innovation and High Technology, 2013 г., course "Parallel and distributed computing"
Faculty of Problems of Physics and Energetics, Department of Mathematical Modeling of Physical Processes, 2012, course "Parallel computing methods"
Department of Mathematical Foundations of Control, 2011-2013, course "Parallel discrete optimization methods"

INM RAS (Marchuk Institute of Numerical Mathematics of Russian Academy of Sciences)

doctorate, 2016 - present, course "Parallel computing methods"

Sechenov University

2021, The 3rd Russian-Chinese School on Mathematical Modeling and Parallel Computing, SIAT-Sechenov Competition on Numerical Modeling of Bioimpedance Analysis, tutor on linear algebra
2020, The 2nd Russian-Chinese School on Mathematical Modeling and Parallel Computing, course Introduction to Supercomputing (in English)
2019, Russian-Chinese School on Mathematical Modeling and Parallel Computing, course Introduction to Supercomputing (in English)
2018 - present, magistracy "Mathematics and Mechanics": course "Practical work on parallel computing"
2018 - present, magistracy "Mathematics and Mechanics": course "Optimization methods"

MSU (Lomonosov Moscow State University), "International Summer Supercomputer Academy"

2018, track "Capabilities of open source packages (Salome/OpenFOAM/Paraview) for solving of continuum mechanics problems": lecture "INMOST - software platform for distributed mathematical modeling" (with K. M. Terekhov and V. K. Kramarenko)
2017, track "Computational hydrodynamics on supercomputers": lecture "ANI3D extension of the parallel INMOST platform and hydrodynamic applications" (with Yu. V. Vassilevsky and V. K. Kramarenko)
2012, track "Computational Fluid Dynamics on Supercomputers: Methods and Practice", lecture "Solution of algebraic systems with sparse matrices"
2012, track "Parallel algorithms of algebra and analysis and experience of supercomputer modeling", course of lectures

MIIT (Russian University of Transport)

2010-2012, course "Parallel computing algorithms"

© ИНК