AppTemp
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| - | . | + | We consider a continuum mechanics problem, such as the problem of modeling the explosion of a supernova type II and, for this example, create an algorithm using the method of AMR and build a parallel program. Then the results of the calculation of specified problem of blast are visualized. |
== Scientific and Social Impact == | == Scientific and Social Impact == | ||
Revision as of 05:33, 23 February 2012
General Information
- Application's name: Parallel algorithm and program for the solving of continuum mechanics equations using Adaptive Mesh Refinement
- Application's acronym: AMR_PAR
- Virtual Research Community: VRC "Computational Physics"
- Scientific contact: Boris RYBAKIN, rybakin@math.md
- Technical contact: Nicolai ILIUHA, nick@renam.md
- Developers: Dr. habil. Boris RYBAKIN,Institute of Mathematics and Computer Science, Laboratory of Mathematical Modelling, Republic of Moldova
- Web site: http://www.math.md/en/
Short Description
Many complex problems of continuum mechanics are numerically solved on structured or unstructured grids. To improve the accuracy of the calculations is necessary to choose a sufficiently small grid (with a small cell size). This leads to the drawback of a substantial increase of computation time. Therefore, for the calculations of complex problems in recent years the method of Adaptive Mesh Refinement (AMR) is applied. That is, the grid refinement is performed only in the areas of interest of the structure, where e.g. the shock waves are generated, or a complex geometry or other such features exist. Thus, the computing time is greatly reduced. In addition, the execution of the application on the resulting sequence of nested, decreasing nets can be parallelized. For the arrays with dimension up to 128x128x128 the application AMR_PAR can still be executed in Grid. For higher-dimensional arrays, which are of practical interest, the delays in sending messages is greatly increasing the run time of the application, and the use of the HPC solution becomes mandatory.
Problems Solved
We consider a continuum mechanics problem, such as the problem of modeling the explosion of a supernova type II and, for this example, create an algorithm using the method of AMR and build a parallel program. Then the results of the calculation of specified problem of blast are visualized.
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