This is the source code for a solver for generalized BSSN formulation of Einstein's equation in spherical symmetry in compactified non-uniform grid.
This is the first successful implementation of a fully evolutionary scheme that can track and find the critical solution. See the publication: https://arxiv.org/pdf/1508.01614v2.pdf
- C and FORTRAN compilers
- Maple
- FD Toolkit [+]
- GRTensor [+] for computing BSSN formulation
- bbhutil/SDF libraries (for I/O and driver) part of librnpl [+]
See compile_run_workflow.sh
for an example of a compilation and run
See src/FD
for all of calculation codes generated by FD Toolkit.
See src/human
for some quick utility codes written by human.
See the gen_codes.sh
for the flow of code generation and from there see
each files that are used.
See main.mpl
for the major parts of calculation and finite differencing and
from there see each files that are used.
This is the source code for the publication:
https://inspirehep.net/record/1387166
(Phys.Rev. D92 (2015) no.8, 084037)