Since 1978
Published in Sarov (Arzamas-16), Nizhegorodskaya oblast

RUSSIAN FEDERAL
NUCLEAR CENTER -
ALL-RUSSIAN RESEARCH INSTITUTE
OF EXPERIMENTAL PHYSICS
 
 Русский |  English
ABOUT EDITORIAL BOARD PUBLICATION ETHICS RULES FOR AUTHORS AUTHORS ARCHIVE MOST RECENT ISSUE IN NEXT ISSUE PAPER OF THE YEAR




ON EXPERIENCE OF PARALLELING GAS DYNAMIC PROBLEM COMPUTATION USING DMK PROGRAMS ON MULTIPROCESSOR SYSTEMS

V.N. Motlokhov, V.V. Rasskazova, I.D. Sofronov
VANT. Ser.: Mat. Mod. Fiz. Proc 1996. Вып.3. С. 3-8.

      Methods and techniques of computation paralleling are demonstrated which authors experienced when parallel computation arrangement was of narrow directed character persued specific objectives. Algorithm of paralleling DMK (2-D gas dynamic problem computation on nonregular polygonal and regular quadrangular grids) program is proposed.



LOGISTICS OF SMOOTH GRID GENERATION IN COMPOSITE DOMAINS

G.P. Prokopov, O.I. Sofronova
VANT. Ser.: Mat. Mod. Fiz. Proc 1996. Вып.3. С. 9-17.

      Problems of description of grid and domain structure allowing to automatize to great extent the process of cutting composite domain into rectangular structure blocks in plane of grid node numbers. It is possible to solve grid generating equations obtained using variational functionals or direct approximation of differentional equations by means of local algorithms which can be easily parallelized for multiprocessor computer systems. The logistics described allows to provide grid smoothness for the entire composite domain.



PARALLEL ALGORITHMS FOR SOLVING 3-D HEAT CONDUCTION EQUATION AND RESULTS OF DEMONSTRATION PROBLEM COMPUTATIONS ON EIGHT-PROCESSOR COMPUTER SYSTEM MP-3 WITH DISTRIBUTED MEMORY

O.I. Butnev, A.N. Bykov, B.L. Voronin, S.I. Skrypnic, I.D. Sofronov
VANT. Ser.: Mat. Mod. Fiz. Proc 1996. Вып.3. С. 77-84.

      The paper presents the description of parallel algorithms for solving 3-D heat conduction equation and computation results of test problem on cube cooling obtained using eight-processor computer system MP-3 with distributed memory. Differentia] and finite-difference equations, scheme of spliting by directions, finite-difference equation solving technique are given. Two ap-proaches to massively parallel computation arrangement are implemented and studied.
      Parallelization efficiency dependence on technique of problem geometrical decomposition for two modes of MP-3 processor loading is investigated. Computations were carried out using orthogonal and nonorthogonal grids.



[ Back ]


 
 
 
© FSUE "RFNC-VNIIEF", 2000-2024