Guillaume Giudicelli

@abarun22 I apologize profusely for the delay in helping out here. This is a pretty awesome functionality and we'll get some use for it for high fidelity simulations. I added...

Test failure is unrelated. Thanks for the contribution @abarun22 !

Coverage wise the only shocking thing is the lack of coverage on the overlap/value conflict/floating point indetermination search in parallel. This is actually likely just because the recipe doesn't cover...

Some profiles with tests at higher refinement. **Serial** [UO_3d.pdf](https://github.com/idaholab/moose/files/10332193/UO_3d.pdf) [NN_3d.pdf](https://github.com/idaholab/moose/files/10332194/NN_3d.pdf) [UO_2d.pdf](https://github.com/idaholab/moose/files/10332195/UO_2d.pdf) [UO_BR_2d.pdf](https://github.com/idaholab/moose/files/10332322/UO_BR_2d.pdf) (most interesting) UO - 3D test with r5 : 16,538,562 dofs UO - 2D test with r6 :...

Sounds good. The failure with Griffin is trivial btw, this is ready for review

> The strings-for-indexing comments from @friedmud are still applicable issues? I think the various profiles I posted show these are negligible

@roystgnr @loganharbour the distributed mesh failures here are not tied to this PR. They are tied to me turning on possibly an old distributed mesh sweep recipe. The current one...

Get ready, last time I got 900 emails about the size of the repo

It seems with those absurd build errors I missed that the nearest_app tests are failing at some ranks. I ll try to find time to look at them.

We cant avoid perturbed lookups. This comes from the multiplicity of target sub app positions. I think a parameter to the map would need to be part of the template...