1. Code Name: ORBIT
2. Code Category: Transport
3. Primary Developer: R. White
4. Other Developers and Users: a. L. Marinelli, Padova b. M. Van Zeeland, GA c. V. Chan, GA
5. Short description: Guiding center test particle code for tokamak geometry
6. Computer Language: Fortran90 10,000 lines
7. Type of input required: equilibrium data from EFIT, particle data from TRANSP, mode data from NOVA
8. Type of output produced: ASCI- plot data files
9. Describe any postprocessors which read the output files: Several supermongo files, see orbit.pdf below
10. Status and location of code input/output documentation:
11. Code web site? No
12. Is code under version control? no
13. One to two paragraph description of equations solved: Fourth order Runge Kutta step for advancing Hamiltonian guiding center equations
14. What modes of operation of code are there: See orbit.pdf below
15. Journal references describing code: See orbitpapers.pdf below
16. Codes it is similar to and differences: Other guiding center codes have been written using the same equations developed by us.
17. Results of code verification and convergence studies (with references): See orbitpapers.pdf below
18. Present and recent applications and validation exercises (with references as available): See orbitpapers.pdf below
19. Limitations of code parameter regime (dimensionless parameters accessible):
20. What third party software is used? (eg. Meshing software, PETSc, ...):
21. Description of scalability:
22. Major serial and parallel bottlenecks:
23. Are there smaller codes contained in the larger code? Describe:
24. Supported platforms and portability:
25. Illustrations of time-to-solution on different platforms and for different complexity of physics, if applicable:


Publications Concerning Orbit