GSSMG CODE FACT SHEET
1. Code Name: GSSMG
2. Category: MHD equilibrium
3. Responsible Scientist: Bas Braams
4. Others involved in code development: None
5. One line description: Solve the axisymmetric MHD equilibrium equation by a multigrid method.
6. Computer systems which code runs on: Any.
7. Typical running time (if applicable): A few seconds per calculation.
8. Approximate number of code lines: 3000
9. Does this code read data files from another code? No.
10. Does this code produce data files that can be read by another code? Yes, it produces a flux functio on a mesh.
11. 1-2 paragraph description of code: The code solves the Grad-(Schlueter-)Shafranov equation on a rectangular mesh subject to Dirichlet boundary conditions by use of a multigrid method. The discretization employs a fourth-order accurate compact nine-point stencil. The multigrid algorithm is of the full approximation storage, full multigrid variety and employs adaptive switching criteria.
12. Similar codes to this code, and distinguishing differences:
13. Journal References describing code (up to 3): B. J. Braams: "Magnetohydrodynamic equilibrium calculations using multigrid", in ``Multigrid Methods II'', proceedings of the 2nd European Conference on Multigrid Methods, Cologne, 1985; Springer Verlag, Berlin, 1986.
14. New code capabilities planned for next 1-2 years: None
15. Code users: None
16. Present and recent applications of code: None
17. Status of code input/output documentation. Does not exist, but is simple. Contact the author.
18 Year Code was first used and present frequency of use: 1984/1985. Not in use.
19. Estimate of Man-Years invested in developing code: 0.75
20. Catagories of usage of Code (Check all that apply): (x) application code to do analysis and prediction of experiments ( ) numerical testbed of theoretical ideas (x) physics module to be used in integrated modelling (x) code for machine design
21. Language code is writen in: Fortran-77
22. Results of intercomparisons with other codes and results of validation against experiments. None