Liwei Ji issues

Results 8 issues of


                                            Liwei Ji

'level_iteration' is not checkpointed

It seems that `patchdata.leveldata.at(level).iteration` is not checkpointed. We might need that information when we recover from a checkpoint in the subcycling case.

Add Subcycling Feature

CarpetX: Move unused variables inside CCTK_DEBUG

Extend 'Derivs' to cover 6th and 8th order finite difference

`Derivs`: 1. implement 6th and 8th order accurate central finite difference. 2. implement dissipation and upwind derivatives corresponding to 6th and 8th order central finite difference. `TestDerivs`: 1. implement unit...

Derivs: add template instantiation for cell centered grid functions

CarpetX: make driver.hxx, schedule.hxx and timer.hxx visible to other thorns

CarpetX: fix bug in hermite prolongation

This PR is trying to fix bug in the Hermite type of prolongation. 1. Since the first order Hermite interpolation is the same with Lagrange Interpolation and quit different from...

Fix typo in research_codebase.md

## What problem(s) was I solving? There is a typo in step reference. ## What user-facing changes did I ship? None ## How I implemented it I correct the step...