Browsing by Author "Bambuch, Tomáš"
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- ItemTestování a optimalizace metody rozkladu oblasti pro specifické úlohy proudění(Technická Univerzita v Liberci, 2011) Bambuch, Tomáš; Březina, JanThis thesis is concerned with problems of parallel computing, especially with regard to one area of its use ? the simulation of underground water flow. The first part of the work is discussing the basic variables, statistics and laws which we may encounter in our field of interest. A short description of software tools and interfaces for parallel computing is also given, together with an introduction to numerical libraries, by which the desired tasks can be effectively solved. We also deal with hardware, the so-called supercomputers and their architectures as well as with a description of two computers, which were used during our tests described in the second part. The second part is purely practical ? tests made on the sample tasks included in PETSc libraries are analyzed there and thus provide basic comparison of both tested computers. The work is also focusing on software for water flow, solute transport and sorption in a heterogonous porous and fractured medium called Flow123d and mentions the modifications made in the program noted above ? implementation of classes for time measurement and a set of scripts for automated tasks testing. Testing sets for program Flow123d performed on both tested supercomputers are analyzed there too, including the evaluation of the results.