https://github.com/dalcinl/petiga

PETSc-based framework for isogeometric analysis (IGA) methods
https://github.com/dalcinl/petiga

fem isogeometric-analysis mpi petsc

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PETSc-based framework for isogeometric analysis (IGA) methods

• Host: GitHub
• URL: https://github.com/dalcinl/petiga
• Owner: dalcinl
• License: other
• Created: 2022-03-20T07:22:37.000Z (almost 3 years ago)
• Default Branch: master
• Last Pushed: 2024-07-31T14:04:25.000Z (5 months ago)
• Last Synced: 2024-10-14T19:41:33.482Z (3 months ago)
• Topics: fem, isogeometric-analysis, mpi, petsc
• Language: C
• Homepage:
• Size: 1.12 MB
• Stars: 23
• Watchers: 2
• Forks: 4
• Open Issues: 2
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE.rst

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README

        
PetIGA: A framework for high performance Isogeometric Analysis

==============================================================

Overview

--------

This software framework implements a NURBS-based Galerkin finite

element method (FEM), popularly known as `isogeometric analysis

`_ (IGA). It is

heavily based on `PETSc `_, the

*Portable, Extensible Toolkit for Scientific Computation*. PETSc is a

collection of algorithms and data structures for the solution of

scientific problems, particularly those modeled by partial

differential equations (PDEs). PETSc is written to be applicable to a

range of problem sizes, including large-scale simulations where high

performance parallel is a must. PetIGA can be thought of as an

extension of PETSc, which adds the NURBS discretization capability and

the integration of forms. The PetIGA framework is intended for

researchers in the numeric solution of PDEs who have applications

which require extensive computational resources.

Installation

------------

After `installing PETSc

`_,

set appropriate values for ``PETSC_DIR`` and ``PETSC_ARCH`` in your

environment::

  $ export PETSC_DIR=/home/user/petsc

  $ export PETSC_ARCH=arch-linux2-c-debug

Clone the `Git `_ repository

hosted at `GitHub `_ ::

  $ git clone https://github.com/dalcinl/PetIGA.git

Finally, enter PetIGA top level directory and use ``make`` to compile

the code and build the PetIGA library::

  $ cd PetIGA

  $ make all

  $ make test

Scripting Support

-----------------

PetIGA is designed to be efficient and as such, we do not directly do

things like output VTK files suitable for viewing the solution. We do

have routines which output the discretization information and solution

vectors, but these are in a binary format to minimize I/O time. We

have written a python package, `igakit

`_ which handles post-processing

for visualization as well as geometry generation. A series of

tutorials in how to use PetIGA and igakit are underway and can be

found `here `_.

Citation

--------

If you find PetIGA helpful in conducting research projects, we would

appreciate a citation to the following article::

  @article{PetIGA,

   author = "L. Dalcin and N. Collier and P. Vignal and A.M.A. Côrtes and V.M. Calo",

   title = "PetIGA: A framework for high-performance isogeometric analysis",

   journal = "Computer Methods in Applied Mechanics and Engineering",

   volume = "308",

   pages = "151--181",

   year = "2016",

   issn = "0045-7825",

   doi = "https://doi.org/10.1016/j.cma.2016.05.011",

  }

Acknowledgments

---------------

This project was partially supported by the

Extreme Computing Research Center

(`ECRC `_),

Division of Computer, Electrical, and

Mathematical Sciences & Engineering

(`CEMSE `_),

King Abdullah University of Science and Technology

(`KAUST `_).