New ASPH H update algorithm #302
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scale udpate rules. Also a few minor fixes for generating ratio spheres in 2D.
for looking up nperh information for ideal H estimation. Preparing for adding new interpolators based on the second moment for our new ASPH approach.
do with the changes in this branch).
applying limits to the allowed nperh lookup range to ensure there's something to sample from. Brody's TestIntegrator function is failing now for reasons I don't understand, so leaving that alone 'til I figure out why.
convergence checking.
consistent with QuadraticInterpolator
zeroth, first, and 2 second moments be passed in. Also updated all the hydros that call these methods to compute those moments (untested still).
functionality into the ordinary ASPH algorithm object now.
our current second moment does not reliably work
shape tensor using convex hulls.
SpheralController takes care of this normally, but in some testing situations like this we have to get manual.
a lot more polyhedron tests with the new SPH algorithm constructing the Voronoi constantly.
and creating a special H time advance policy. Note when using these options the ASPH idealH does not require the Voronoi (big time savings).
…on in the non-radial direction to account for changing r, and forced special mode for iterateH which switches to fixShape for the iteration.
…Only and fixShape doesn't work well
| for (auto* packagePtr: package.preSubPackages()) this->appendPhysicsPackage(*packagePtr); | ||
| mPhysicsPackages.push_back(&package); | ||
| for (auto* packagePtr: package.postSubPackages()) this->appendPhysicsPackage(*packagePtr); |
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It looks like the pre/postSubPackages are only used for the smoothing scale at the moment. A few questions:
- Are there other examples we should consider of things that could become subpackages?
- Is there a way to do this without the extra complexity of subpackages? If we were missing an appendBoundary instance for one of the subpackages, for instance, that could be difficult to test and find. Although the RK and Voronoi packages are is added directly to the integrator without the extra subpackage indirection, those aren't specific to the hydro package, so maybe this extra machinery makes sense.
- Do we need to be worried about the case where multiple packages include the same subpackage? If so, we may want to add a check for
if (!havePhysicsPackage(subPackage)). It seems like the use case is that a subpackage will never be tied to a different package.
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Those are good questions. I added these subpackages as a workaround so we could still maintain the user script level ideas of SPH/ASPH, FSISPH/AFSISPH, etc. I don't know of a better way to maintain that sort of script level backwards compatibility, and I think those concepts of the hydro including the H evolution makes sense from a user perspective.
Another example of something that might become a subpackage is the artificial viscosities. We could abstract those out of the hydro packages as well, particularly if we add the idea of pair-wise centering data type.
At the moment I don't forsee having subpackages that might be defined by multiple packages, but we can easily check for that since the way the work is the SpheralController builds the ultimate package list by adding in the subpackages from each package.
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I think we also need the self interaction block in the CompatibleDifferenceSpecificThermalEnergyPolicy.cc for FSISPH, MFM, MFV and GSPH to conserve energy properly w/ the hour glass acceleration?
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The current SubPointPressureHourglassControl does not create self-interactions (though at one stage it did). However, you are right that for consistency between these various compatible energy update policies we should handle the possible existence of self-interaction terms similarly. Really we need to look at merging these all into one policy, but for now I'll introduce the same self-interaction check in the CompatibleDifferenceSpecificThermalEnergyPolicy.
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Oh shoot, there is a problem. That policy also needs the pairDepsDt array to be properly sized, which it will not be (I don't think) if we're allowing self-interactions. Since there are no main-line algorithms that currently have self-interactions I say we leave this as is. We'll have to revisit this though if we for instance introduce an RZ version of any of those hydros (FSI, MFM, MFV, GSPH) since those do have self-interaction terms.
src/SPH/PSPHHydroBase.cc
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It looks like the applyFieldListGhostBoundary() methods are applied twice here: once in the postStateUpdate method of PSPH then again when it returns true to the integrator?
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Good catch here -- yes, the new ability to return True and have the boundary conditions applied across all packages once is intended to replace this sort of scattered patchwork of such things like here in the PSPH::postStateUpdate. I'll remove these redundant BC applications.
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All the edits to FSISPH, MFM, MFV, and GSPH look good to me. I didn't get through all the files but I gave most of the other hydros a quick eye too. |
…on from 8.3.1 to 10.3.1 everywhere
Summary
ToDo :
RELEASE_NOTES.mdwith notable changes.