Use of specialized computational devices on the node of the desktop grid system for the solve of combinatorial problems.

The paper discusses the use of specialized Intel Xeon Phi devices in a desktop grid system. As an example of the successful use of specialized devices, the combinatorial problem of finding diagonal Latin squares is given. Features of implementation of the computing application are discussed. The results of work of a computer application in multithreaded modes on different processors andspecialized devices are given.

Debugging Parallel Programs in DVM-System

DVM-system is designed for the development of parallel programs of scientific and technical calculations in the C-DVMH and Fortran-DVMH languages. These languages use a single DVMH-model of parallel programming model and are an extension of the standard C and Fortran languages with parallelism specifications in the form of compiler directives. The DVMH model makes it possible to create efficient parallel programs for heterogeneous computing clusters, in the nodes of which accelerators, graphic processors or Intel Xeon Phi coprocessors can be used as computing devices along with universal multi-core processors. The article describes the method of debugging parallel programs in DVM-system, as well as new features of DVM-debugger.

The Using of DVM-System for Developing of a Program for Calculations of the Problem of Radiation Magnetic Gas Dynamics and Research of Plasma Dynamics in the QSPA Channel

DVM-system is designed for the development of parallel programs of scientific and technical calculations in the C-DVMH and Fortran-DVMH languages. These languages use a single DVMH-model of parallel programming model and are an extension of the standard C and Fortran languages with parallelism specifications in the form of compiler directives. The DVMH model makes it possible to create efficient parallel programs for heterogeneous computing clusters, in the nodes of which accelerators, graphic processors or Intel Xeon Phi coprocessors can be used as computing devices along with universal multi-core processors. The article describes the experience of the successful using of DVM-system to develop a parallel software code for calculating the problem of radiation magnetic gas dynamics and for research of plasma dynamics in the QSPA channel.

Параллельный алгоритм моделирования течения в системах ротор-статор на основе рeберно-ориентированных схем

Описывается численная методика расчeта динамики газа в системах ротор--статор на основе скользящих сеток и рeберно-ориентированных схем. Особое внимание уделяется параллельной реализации алгоритма с использованием комбинированного MPI+OpenMP распараллеливания для кластерных систем. Показана параллельная эффективность в расчетах с использованием до 1400 ядер, а также на ускорителях Intel Xeon Phi. Проводится верификация алгоритма на линейной акустической задаче. Работоспособность алгоритма демонстрируется на примере расчeта модельного вентилятора.