Trilinos is a collection of open-source software libraries, called packages, intended to be used as building blocks for the development of scientific applications. The word "Trilinos" is Greek and conveys the idea of "a string of pearls", suggesting a number of software packages linked together by a common infrastructure. Trilinos was developed at Sandia National Laboratories from a core group of existing algorithms and utilizes the functionality of software interfaces such as BLAS, LAPACK, and MPI.[2][3][4] In 2004, Trilinos received an R&D100 Award.[5]
| Developer(s) | Sandia National Laboratories |
|---|---|
| Stable release | 14.4.0[1]
/ August 2, 2023 |
| Repository | |
| Available in | C++ and C |
| License | Modified BSD license, GNU Lesser General Public License |
| Website | trilinos |
Several supercomputing facilities provide an installed version of Trilinos for their users. These include the National Energy Research Scientific Computing Center (NERSC),[6] Blue Waters at the National Center for Supercomputing Applications,[7] and the Titan supercomputer at Oak Ridge National Laboratory.[8]
Features
editTrilinos contains packages for:
- Constructing and using sparse graphs and matrices, and dense matrices and vectors.
- Iterative and direct solution of linear systems.
- Parallel multilevel and algebraic preconditioning.
- Solution of non-linear, eigenvalue and time-dependent problems.
- PDE-constrained optimization problems.
- Partitioning and load balancing of distributed data structures.
- Automatic differentiation
- Discretizing partial differential equations.
Trilinos supports distributed-memory parallel computation through the Message Passing Interface (MPI). In addition, some Trilinos packages have growing support for shared-memory parallel computation. They do so by means of the Kokkos package, which provides a common C++ interface over various parallel programming models, including OpenMP, POSIX Threads, and CUDA.
Programming languages
editMost Trilinos packages are written in C++. Trilinos version 12.0 and later requires C++11 support. Some Trilinos packages, like ML and Zoltan, are written in C. A few packages, like Epetra, have optional implementations of some computational kernels in Fortran, but Fortran is not required to build these packages.
Some Trilinos packages have bindings for other programming languages. These include Python, C, Fortran, and MATLAB.
Software licenses
editEach Trilinos package may have its own software license. Most packages are Open-source; most of these have a Modified BSD license, while a few packages are under the GNU Lesser General Public License (LGPL). The BLAS and LAPACK libraries are required dependencies.[2]
See also
edit
References
edit- ^ Releases trilinos/Trilinos - GitHub, Retrieved: 2023-11-01.
- ^ a b "The Trilinos Project". Sandia National Laboratories. Retrieved 2014-06-24.
- ^ Heroux, Michael A.; Bartlett, Roscoe A.; Howle, Vicki E.; Hoekstra, Robert J.; Hu, Jonathan J.; Kolda, Tamara G.; Lehoucq, Richard B.; Long, Kevin R.; Pawlowski, Roger P.; Phipps, Eric T.; Salinger, Andrew G.; Thornquist, Heidi K.; Tuminaro, Ray S.; Willenbring, James M.; Williams, Alan; Stanley, Kendall S. (2005). "An overview of the Trilinos project". ACM Trans. Math. Softw. 31 (3): 397–423. CiteSeerX 10.1.1.150.5502. doi:10.1145/1089014.1089021. S2CID 4679315.
- ^ Palen, Brock; Squyres, Jeff; Heroux, Mike; Willenbring, Jim. "RCE 49: Trilinos". Research, Computing, and Engineering (RCE) Podcast. Retrieved 24 June 2014.
- ^ "DOE-Funded Research Wins 26 Awards". science.osti.gov. 2004-10-12. Retrieved 2020-08-03.
- ^ "Trilinos". National Energy Research Scientific Computing Center (NERSC). Retrieved 24 June 2014.
- ^ "Trilinos". Blue Waters: Sustained Petascale Computing. National Center for Supercomputing Applications (NCSA). Retrieved 24 June 2014.
- ^ "Trilinos". Oak Ridge Leadership Computing Facility. Oak Ridge National Laboratory. Retrieved 24 June 2014.