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461. "Scaling applications with irregular memory access on Blue Gene/P and Lomonosov
Scaling applications with irregular memory access on Blue Gene/P and Lomonosov supercomputers using the extended SHMEM+ library" . ... The modification details of the OpenMP NPB UA benchmark version for the SHMEM and SHMEM+ libraries implemented by the author for the Blue Gene/P and Lomonosov supercomputers are discussed. Keywords: NPB UA benchmark, PGAS paradigm, SHMEM, unstructured adaptive, OpenMP extension, Lomonosov supercomputer, Blue Gene/P, active messages, parallel programming . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r213.html -- 2.9 Кб -- 16.11.2010
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462. "Supercomputing education: the third pillar of HPC"
Supercomputing education: the third pillar of HPC" . Voevodin Vl.V., Gergel V.P. The paper raises the question of the necessity of implementing the supercomputing education in the leading research and technology universities. ... Keywords: supercomputing technologies, parallel computing, high performance computing, higher education, university education, national project . ... Voevodin Vl.V. e-mail: voevodin@parallel.ru - Research Computing Center, Moscow State University, 119991, Moscow . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r212.html -- 3.0 Кб -- 15.11.2010
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463. "Local search for nonconvex optimal control problems of Bolza"
Local search for nonconvex optimal control problems of Bolza" . Strekalovsky A.S. A nonconvex optimal control problem whose nonconvexity is generated by an integro-terminal objective functional is considered. A new local search method that allows obtaining a control process (x * ( ), u * ( )) satisfying, in particular, Pontryagin's maximum principle is proposed. ... Keywords: nonconvex optimal control problems, Pontryagin's maximum principle, local search algorithm . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r141.html -- 2.9 Кб -- 15.11.2010
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464. "A parallel mesh partitioning tools"
A parallel mesh partitioning tool" . Golovchenko E.N. The geometric parallelism is often used for the numerical solution of problems in the field of mathematical physics on distributed memory systems. ... This problem can be reduced to the graph partitioning problem. ... A parallel mesh partitioning tool is developed on the basis of the incremental algorithm for graph partitioning and the recursive coordinate bisection algorithm. ... Golovchenko E.N. e-mail: ge03@imamod.ru ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r143.html -- 2.9 Кб -- 09.11.2010
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465. "Automatic term extraction based on feature combination"
Automatic term extraction based on feature combination" . Lukashevich N.V., Logachev Yu.M. The paper describes the method of extraction of two-word domain terms combining their features. The features are computed from three sources: the word usage statistics in a domain-specific text collection, the statistics of global search engines, and a domain-specific thesaurus. ... We show that the use of multiple features considerably improves the automatic extraction of domain-specific terms. ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r211.html -- 2.9 Кб -- 26.10.2010
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466. "Application of multiprocessor systems for solving three-dimensional Fredholm
Application of multiprocessor systems for solving three-dimensional Fredholm integral equations of the first kind for vector functions" . Lukyanenko D.V., Yagola A.G. Some features of the numerical implementation of solving tree-dimensional Fredholm integral equations of the first kind for vector-functions with application of multiprocessor systems are considered. The Tikhonov regularization is applied to solve this ill-posed problem. ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r140.html -- 3.5 Кб -- 26.10.2010
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467. "On the metric-topological computing in the constructive world of cubic
On the metric-topological computing in the constructive world of cubic structures" . Ryabov G.G., Serov V.A. A constructive approach to the algebraic (monoidal) representation of cubic structures is developed. ... Some peculiarities of the implementation of concurrent computer operations on monoids are considered as a tool of supercomputing. ... Keywords: n-cube, cubants and cross-cubants, monoid, Hausdorff-Hamming metric, concurrent digitwise operations, supercomputing, 3D-sphere . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r139.html -- 3.0 Кб -- 26.10.2010
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468. "A partial regularization method for a generalized primal-dual system of
A partial regularization method for a generalized primal-dual system of inequalities" . ... The problem is reformulated as an equivalent variational inequality whose main mapping does not possess a monotonicity property and is not the gradient mapping of any function. In order to solve the problem, a partial regularization method is proposed. ... Keywords: generalized primal-dual system, nonmonotone variational inequality, partial regularization method, sufficient convergence conditions . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r138.html -- 3.0 Кб -- 26.10.2010
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469. "Bayesian network prediction: algorithm and software implementation"
... Maslennikov E.D., Sulimov V.B. This paper is devoted to the clustering belief updating algorithm using the junction tree as a tree graph representation of Bayesian networks. ... The software implementation of the algorithm is also considered. Keywords: Bayesian network, belief network, belief update, expert system, join tree, junction tree, probabilistic interference, probabilistic propagation . PostScript (in Russian) (6.99MB) . PDF (in Russian) (0.98MB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r210.html -- 3.0 Кб -- 25.10.2010
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470. "An approach to solving the problem of observation structure optimization"
An approach to solving the problem of observation structure optimization" . Kolos I.V., Kolos M.V. A method for optimizing the structure of an observation system is proposed on the basis of the duality of linear optimal filtration and quadratic control. The work was supported by the Russian Foundation for Basic Research (project N 10-01-00297a). Keywords: optimization, optimal filtration, quadratic control, measurement processing, dynamical systems . PostScript (in Russian) (496KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r137.html -- 2.6 Кб -- 18.10.2010
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471. "Simulation of in-situ combustion front dynamics"
Simulation of in-situ combustion front dynamics" . Grachev N.E., Dmitriev A.V., Senin D.S., Volkov V.T., Nefedov N.N. The dynamics of sharp transition layers in the reaction-diffusion-advection model is numerically studied. ... PostScript (in Russian) (15.8MB) . ... Grachev N.E. e-mail: grachev_nick@mail.ru ; Senin D.S. e-mail: dsenin@vniineft.ru . Dmitriev A.V. e-mail: dmitriev_a.v@mail.ru ; Volkov V.T. e-mail: volkovvt@migmail.ru ; Nefedov N.N. e-mail: nefedov@phys.msu.ru ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r136.html -- 3.1 Кб -- 18.10.2010
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472. "Comparison of the Verlet table and cell-linked list algorithms for sequential,
Comparison of the Verlet table and cell-linked list algorithms for sequential, vectorized and multithreaded implementations" . Fomin E.S. Neighbor search algorithms are widely used in molecular dynamics for the direct computation of short-range inter-atomic potentials. These algorithms are based on the Verlet table (VT) or cell-linked list (CLL) methods. ... Keywords: Verlet table method, cell-linked list method, nearest neighbor search, SIMD, multithreading . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r135.html -- 3.4 Кб -- 18.10.2010
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473. "Construction of the basis functions for computing by the method of
Construction of the basis functions for computing by the method of physical-factor splitting in a finite-size domain" . Bryzgalov A.A., Karmanov F.I. A method is proposed for the construction of the basis functions in problems with bounded potentials. ... The case of a coordinate-bounded domain is considered. ... Keywords: variational method, method of physical-factor splitting, basis functions, Schroedinger equation, 2D quantum ring . PostScript (in Russian) (20.5MB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r134.html -- 3.0 Кб -- 04.10.2010
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474. "Numerical modeling of a modified oregonator by the (2,1)-method for solving
Numerical modeling of a modified oregonator by the (2,1)-method for solving stiff problems" . Novikov E.A. An algorithm for the formation of differential equations in chemical kinetics is described. Numerical modeling of a modified oregonator is performed by the L-stable (2,1) method for solving stiff nonautonomous problems. ... Keywords: chemical kinetics, oregonator, stiff problem, L-stable method, accuracy control . PostScript (in Russian) (1.28MB) . PDF (in Russian) (316KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r133.html -- 2.6 Кб -- 04.10.2010
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475. "On solving nonconvex optimal control problems with a terminal objective
On solving nonconvex optimal control problems with a terminal objective functional" . Strekalovsky A.S., Yanulevich M.V. A nonconvex optimal control problem for a linear-in-state system of ordinary differential equations with a terminal objective functional given by the difference of two convex functions is considered. New local and global search algorithms are tested. ... Keywords: nonconvex optimal control problems, locally and globally optimal processes, local and global search algorithms . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r132.html -- 2.9 Кб -- 04.10.2010
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476. "Some technological aspects of GPGPU applications in applied program systems"
Some technological aspects of GPGPU applications in applied program systems" . Galimov M.R., Biryaltsev E.V. The problem of natural microseismic field analysis is considered. The performance of GPGPU technology is estimated when using single or multiple GPUs and various programming technologies, such as CUDA, JCuda and OpenCL. ... Keywords: high performance computing, parallel computing, GPGPU, Multi-GPU, microseisms . PostScript (in Russian) (1.7MB) . PDF (in Russian) (414KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r209.html -- 3.0 Кб -- 30.09.2010
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477. "The fundamental matrix for the Jacobi equation with random coefficients"
... Mikhailov E.A., Sokoloff D.D., Tutubalin V.N. A numerical simulation of the fundamental matrix for the Jacobi equation with random curvature is performed. ... The behavior of the fundamental matrix corresponds to the main theoretical concepts based on the known theorems concerning the product of large numbers of unimodular random matrices and sometimes complements these concepts. Keywords: fundamental matrix, random coefficients, Jacobi equation . PostScript (in Russian) (1.54MB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r131.html -- 3.2 Кб -- 30.09.2010
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478. "Distributed grid metascheduler"
. "Distributed grid metascheduler" . Korneev V.V., Semenov D.V. A resource scheduling approach on the basis of a model with distributed shared queue and its realizing algorithms applied to the grid are considered. Keywords: grid, distributed job scheduling, grid architecture for parallel computing . PostScript (in Russian) (2.09MB) . PDF (in Russian) (412KB) . PostScript. zip (in Russian) (700KB) . PDF. zip (in Russian) (381KB) . Semenov D.V., Korneev V.V. e-mail: korv@rdi-kvant.ru
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r208.html -- 2.4 Кб -- 14.09.2010
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479. "A method of multiobjective optimization on the basis of approximate models for
A method of multiobjective optimization on the basis of approximate models for an optimized object" . Zelenkov Yu.A. A method of multiobjective optimization on the basis of the NSGA-II algorithm with approximate models for an optimized object is proposed. ... The multiobjective optimization of the working process of a gas turbine engine is studied as an example. Keywords: approximation, response surface model (RSM), RBF networks, multiobjective optimization, gas turbine engine parameters . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r130.html -- 2.9 Кб -- 13.09.2010
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480. "Nano-optical elements for the forming of 2D images"
Nano-optical elements for the forming of 2D images" . Goncharsky A.A., Durlevich C.P. The paper is devoted to the mathematical modeling of synthesis of nano-optical elements. The possibilities of kinoform elements are studied in detail. It is shown that, in the problems of image formation, the kinoform elements have a number of advantages over the classical flat diffraction optical elements. ... Goncharsky A.A. e-mail: gonchar@srcc.msu.ru ; Durlevich C.P. e-mail: sdurlevich@yandex.ru ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r129.html -- 2.7 Кб -- 09.09.2010
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