Bitpit

Features and the modules of bitpit include:

• Cartesian and unstructured volume and surface meshes
• Parallel linear quadtree/octree with load balancing and 2:1 balancing (PABLO M. Cisternino, A. Iollo, L. Weynans, A. Colin, P. Poulin.

Electrostrictive materials: modelling and simulation , in: 7 th European Congress on Computational Methods in Applied Sciences and Engineering, Hersonissos, Greece, ECCOMAS, June 2016. [https://www.eccomas2016.org/proceedings/pdf/10791.pdf Abstract]M. Cisternino, E. Lombardi, PABLO - Open source PArallel Balanced Linear Octree, an industrial tool for scientific computing. JDEV 2015, Bordeaux, France. [http://devlog.cnrs.fr/_media/jdev2015/poster_jdev2015_pablo_marco_cisternino.pdf?id=jdev2015%3Aposters&cache=cache Poster]H.Telib, M. Cisternino, V. Ruggiero, F. Bernard, RAPHI: Rarefied Flow Simulations on Xeon Phi Architecture, SHAPE White Papers, PRACE [http://www.prace-ri.eu/IMG/pdf/WP215.pdf Download]Project Team MEMPHIS - INRIA, Activity Report 2016, Bordeaux,France. [https://raweb.inria.fr/rapportsactivite/RA2016/memphis/memphis.pdf Paper]A. Raeli, A. Azaïez, M. Bergmann, A. Iollo. Numerical Modelling for Phase Change Materials. CANUM, May 2016, Obernai, France. [https://hal.inria.fr/hal-01404977/file/Matrice.pdf Presentation]F. Tesser, Discretization of the Laplacian operator using a multitude of overlapping cartesian grids, Sessions, EuroSciPy 2016, Erlangen, GermanyF. Bernard, A. Iollo, S. Riffaud. Reduced-order model for the BGK equation based on POD and optimal transport, Journal of Computational Physics, Elsevier, 2018, 373, pp.545-570 [https://hal.archives-ouvertes.fr/hal-01943540]F. Bernard, A. Iollo, G. Puppo. BGK Polyatomic Model for Rarefied Flows, Journal of Scientific Computing, Springer Verlag, 2019, 78(3) [https://hal.inria.fr/hal-02419447]E. Abbate, A. Iollo, G. Puppo. An asymptotic-preserving all-speed scheme for fluid dynamics and non linear elasticity, SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2019 [https://hal.archives-ouvertes.fr/hal-02373325] - PArallel Balanced Linear Octree)

• Basic container object for different types of meshes (surface and volume) which allows the concomitant use of more than one mesh at the same time
• Methods for the evaluation of signed and unsigned distance functions from generic objects immersed in a computational mesh
• Basic algebraic operators (Addition, subtraction, multiplication, division), mathematical functions (dot product, cross product, norm, absolute value), stream operators and display functions for some of the Standard Template Library (STL) containers
• A collection of useful containers for scientific applications.
• binary buffers for parallel data exchange and high level methods for handling MPI parallel communications.
• methods for reading and writing common data files, like DGF (Dune Grid Format), STL (STereo Litography) and VTK (Visualization ToolKit) files, and for handling logfiles.
• tools for handling and solving small dense linear systems.
• Radial Basis Function interpolation and parametrization even with large set of nodes.
• Sorting algorithms (LIFO, kd-tree, and binary tree)
• A computational geometry methods collection

• Meshes
• Octree
• Linear Algebra

{{Reflist}}

• [http://bitpit.it The Official bitpit web site]
• [https://github.com/optimad/bitpit The bitpit Github repository]
• [https://github.com/uncleTes/fv_approach A Python API for bitpit]

Category:Free computer libraries