cflin
/
Thermo-elasticTopologyOptimization
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
27 Commits
2 Branches
0 Tags
44 MiB
 
 
 
 
 
 
Branch: master
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'master'
${ noResults }
Thermo-elasticTopologyOptim.../3rd/mma
cflin 8e592a956c
speed up cuda 		1 year ago
..
cmake finished base sim 2 years ago
src speed up cuda 1 year ago
tests finished base sim 2 years ago
.gitattributes finished base sim 2 years ago
.gitignore finished base sim 2 years ago
.travis.yml finished base sim 2 years ago
CMakeLists.txt before sim 2 years ago
LICENSE finished base sim 2 years ago
README.md finished base sim 2 years ago
TODO.md finished base sim 2 years ago

README.md

MMA and GCMMA

A self-contained C++ implementation of MMA and GCMMA.

Build Status

This repository contains single-file C++ implementations of MMA and GCMMA, as described in [1,2,3]. The code in this repository is based on an original code by Niels Aage, using the subproblem solver described in [4]. I made some modifications to the original code to be more C++-like (e.g. using std::vector<>), and slightly changed the way bounds are computed in the subproblem approximation. I have also extended the solver to use the GCMMA method [2,3]. Both the MMA and GCMMA solvers can be found in their respective folder in src/.

The goal of this project is to provide a minimal, self-contained implementation of MMA and GCMMA which are easy to use and easy to integrate in an existing C++ project. The code is still in beta, meaning it hasn't been tested extensively, so use at your own risks.

Usage

This project use CMake, but you should be able to copy the files directly into your own project, since there are no dependencies. Usage should be fairly obvious looking at the header files, but you can also take a look at the examples under the tests/ folder.

Other Projects

  • TopOpt_in_PETSc: Multi-processor implementation of MMA using MPI and PETCs.
  • NLopt: Open-source library for nonlinear optimization with bindings in different languages. Contains a different implementation of GCMMA.

References

  1. Svanberg, K. (1987). “The Method of Moving Asymptotes—a New Method for Structural Optimization”. International Journal for Numerical Methods in Engineering, 24(2), 359–373. https://doi.org/10.1002/nme.1620240207.
  2. Svanberg, K. (2002). “A Class of Globally Convergent Optimization Methods Based on Conservative Convex Separable Approximations”. SIAM Journal on Optimization, 12(2), 555–573. https://doi.org/10.1137/s1052623499362822.
  3. Svanberg, K. (2007). MMA and GCMMA - Two Methods for Nonlinear Optimization. Technical report. https://people.kth.se/~krille/mmagcmma.pdf
  4. Aage, N., & Lazarov, B. S. (2013). Parallel framework for topology optimization using the method of moving asymptotes. Structural and Multidisciplinary Optimization, 47(4), 493–505. https://doi.org/10.1007/s00158-012-0869-2