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Since 1978
Published in Sarov (Arzamas-16), Nizhegorodskaya oblast |
RUSSIAN FEDERAL
NUCLEAR CENTER -
ALL-RUSSIAN RESEARCH INSTITUTE
OF EXPERIMENTAL PHYSICS |
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 Русский |  English
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TWO-LEVEL PARALLELING OF EXPLICIT DIFFERENCE SCHEMES IN EGAK CODE
V. Yu. Kolobyanin, A. A. Fedorov, N. P. Antipina
VANT. Ser.: Mat. Mod. Fiz. Proc 2017. Вып.3. С. 62-69.
The paper describes the two-level paralleling (in shared memory and distributed memory) of explicit difference schemes in the EGAK code. The transfer from the one-level paralleling model (in distributed memory) to the two-level model is described. Results of numerical scalability tests are presented. Keywords: the EGAK code, two-level paralleling, paralleling efficiency, parallel computers.
| RAMZES-KP CODE ON HYBRID PARALLEL COMPUTERS WITH GRAPHICS ACCELERATORS
A. N. Bykov, D. G. Gordeyev, V. G. Kudelkin, E. A. Sizov, A. A. Fedorov
VANT. Ser.: Mat. Mod. Fiz. Proc 2017. Вып.3. С. 70-76.
The paper describes the RAMZES-KP code (for gas dynamic equations with regard to heat conduction) for a hybrid-architecture parallel computer comprising general-purpose processors and graphics accelerators. Program profiling and optimization results are presented. The paralleling efficiency values achieved by using a homogeneous multiprocessor (with general-purpose processors only) and a hybrid computer to solve the same problems are given. Keywords: RAMZES-KP, graphics accelerators, arithmetic accelerators, acceleration, paralleling, MPI, efficiency, implicit gas dynamics, heat conduction.
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