#1676: Add CT_MultiLevel elliptic solver to the Einstein Toolkit --------------------------+------------------------------------------------- Reporter: hinder | Owner: Type: enhancement | Status: confirmed Priority: major | Milestone: Component: Other | Version: development version Resolution: | Keywords: --------------------------+-------------------------------------------------
Comment (by hinder):
The galley example text has been updated. The code will live in the CTThorns repository.
The current holdup is a couple of test failures which seem to be triggered by switching from the original to the rewrite version of McLachlan. The tests output ML_BSSN::ham, and this differs between the two McLachlan versions. Since there is no evolution in CT_MultiLevel, we will probably remove McLachlan from the tests, and test just the ADMBase variables. Independently of adding the solver to the toolkit, we should also understand why the rewrite of McLachlan caused changes in the constraints. Erik said that the constraints should differ only by roundoff. It's possible that "roundoff" for the solver is quite large, due to the method used, so that the solver variables meet the usual Cactus default tolerances, but the constraints do not.