ExaHyPE-Engine issueshttps://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues2017-08-25T11:24:13+02:00https://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues/172High time outs required during mesh refinement iterations2017-08-25T11:24:13+02:00Ghost UserHigh time outs required during mesh refinement iterationsI could get a p=9 243^3 Euler scenario run (64x14 ranks) but only if
I set the timeout to a large value of 360 sec.
Issue presumed to be related to imposing initial conditions
on-the-fly during the grid setup iterations.
This would exp...I could get a p=9 243^3 Euler scenario run (64x14 ranks) but only if
I set the timeout to a large value of 360 sec.
Issue presumed to be related to imposing initial conditions
on-the-fly during the grid setup iterations.
This would explain the worse behaviour in 3d as well as
for the limiting ADER-DG solver.
For the latter, also the min and max is computed on-the-fly.https://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues/169Do not impose initial conditions in every mesh refinement iteration2017-11-21T13:42:50+01:00Ghost UserDo not impose initial conditions in every mesh refinement iterationIt turned out that this is quite costly.
It might be responsible for time outs encountered during the
initial grid setup.
Min and max search:
--------------------
- This should be done once in FinaliseMeshRefinement
since we have a lar...It turned out that this is quite costly.
It might be responsible for time outs encountered during the
initial grid setup.
Min and max search:
--------------------
- This should be done once in FinaliseMeshRefinement
since we have a larger concurrency level here.
- We further should move around some of the behaviour of LocalRecomputation
into FinaliseMeshRefinement.https://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues/165Minimise limiter status based halo refinement2017-08-15T16:59:19+02:00Ghost UserMinimise limiter status based halo refinementIf the a-posteriori troubled cell indicators indicate a troubled cell, we refine
this cell down to the finest mesh level specified by the user.
I further have to ensure that I can place helper cell layers around the troubled cell
also o...If the a-posteriori troubled cell indicators indicate a troubled cell, we refine
this cell down to the finest mesh level specified by the user.
I further have to ensure that I can place helper cell layers around the troubled cell
also on the finest mesh level. Thus, I need some halo refinement.
Currently, I refine all neighbours of a cell with limiter status 1 and 2 in order to ensure
that the diagonal neighbours are refined as well.
In principle, I could however refine the cells with have a limiter status of 1 and
the cells which have two neighbours with a limiter status 1.https://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues/164Extrapolate space-time polynomials and wrap boundary condition imposition in ...2017-07-12T20:24:40+02:00Ghost UserExtrapolate space-time polynomials and wrap boundary condition imposition in time-integralThis will further be a first step for local time steppingThis will further be a first step for local time steppinghttps://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues/163Have a maximum-timestep-size in the spec file2017-07-12T17:49:05+02:00Ghost UserHave a maximum-timestep-size in the spec fileThis value can then be used to prescribe a time step size as long.
As the solver does not require a smaller one at least.This value can then be used to prescribe a time step size as long.
As the solver does not require a smaller one at least.https://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues/145SegFault occurs if I turn conservative flux off2018-06-15T15:13:07+02:00Ghost UserSegFault occurs if I turn conservative flux offProject: DIM_LimitingADERDGProject: DIM_LimitingADERDGhttps://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues/129Access to neighbours for which kernels?2018-06-15T15:13:07+02:00Ghost UserAccess to neighbours for which kernels?Finite Volumes Solver:
- source; ex: bathymetry in SWEFinite Volumes Solver:
- source; ex: bathymetry in SWEhttps://gitlab.lrz.de/exahype/ExaHyPE-Engine/-/issues/110Compression2018-06-15T15:13:07+02:00Ghost UserCompression## TODO
* ~~add "hint-size" to the relevant compression fields.~~
* support the Finite Volumes solver degrees of freedom## TODO
* ~~add "hint-size" to the relevant compression fields.~~
* support the Finite Volumes solver degrees of freedom