Aiwlib library as the instrument for creating numerical modeling applications

Abstract

Aiwlib library is a library for C++11 and Python languages, which is aimed for the development of high-performance computing numerical simulation applications running under GNU/Linux OS. It also provides means for batch calculations, search through results using multiparametric filters and visualisation of results. The visualization is supported of data given on uniform rectangular grids of high dimension in the form of two-dimensional slices with an effective change in the position and orientation of the slice; data given on spherical grids; arbitrary surfaces in three-dimensional space defined on triangular unstructured grids; voxel visualization of data given on uniform threedimensional grids; visualization of the magnetization distribution under micromagnetic or atomistic modeling. The library was applied for development of software packages for seismic, plasma physics and turbid medium optics. It was also turned useful for solving fundamental and applied problems concerning the magnetic materials study and creating spintronics devices, simulation of field development for the oil reservoir that contains kerogen with in-situ combustion taken into account, simulation of poroelastic medium problems and hydraulic fracture problems.

Generalized Computational Experiment and Visual Analysis of Multidimensional Data

“…First of all, tools are being developed to implement such experiments in many software packages for solving optimization problems. Here we can cite as an example the work [15], where algorithms are implemented that allow a generalized computational experiment in such fields as seismic exploration, plasma physics and turbid media optics, solving fundamental and applied problems of studying magnetic materials and creating spintronics devices, simulation of field development for the oil reservoir that contains kerogen with insitu combustion taken into account, simulation of poroelastic medium problems and hydraulic fracture problems.…”

Efficient Parallel Implementation of Multi-Arrival 3D Prestack Seismic Depth Migration

“…Every grid node contains a ray. The grid of initial ray directions is a pentakis dodecahedron recursive subdivision [1]. In contrast to the spherical coordinates of the grid, this triangulation does not have a singularity on the poles, and for the same fineness it has half as many cells.…”

“…The described algorithm is implemented as a program in C++11. It works on OS Linux, requires aiwlib library [1] and uses MPI protocol. The code allows us to solve the multiarrival seismic migration problem for a complex heterogeneous medium cost effectively.…”

Simulating three-dimensional unsteady viscous compressible flow on GPU using the DiamondTorre algorithm

“…Хранение результатов моделирования происходит в формате aiwlib массива трех-мерных данных [18], для визуализации которых используется пакет im3D [19].…”