Add some Mesh methods for handling Z parallelisation #3245
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Add some Mesh methods for handling Z parallelisation #3245
Mesh methods for handling Z parallelisation #3245Conversation
dschwoerer
previously approved these changes
Jan 13, 2026
Tests are updated because `FakeMesh` has `GlobalZ(z) == z`. This is completely arbitrary, we could have a `GlobalZ` definition that matches `BoutMesh` (`z / nz`) then we wouldn't need to change the tests, but this way is a bit clearer what we're testing.
Also make related methods all `const`
These are just the `BoutReal` overloads of the equivalent `getGlobal?Index` methods
[skip ci] Co-authored-by: David Bold <dschwoerer@users.noreply.github.com>
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| zlength(zlength_in), ydown_index(mesh.ystart) { | ||
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| if (mesh.getNZPE() > 1) { | ||
| throw BoutException("ShiftedMetricInterp only works with 1 processor in Z"); |
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warning: no header providing "BoutException" is directly included [misc-include-cleaner]
src/mesh/parallel/shiftedmetricinterp.cxx:32:
- #include "bout/constants.hxx"
+ #include "bout/boutexception.hxx"
+ #include "bout/constants.hxx"| // Find the index positions where the magnetic field line intersects the x-z plane | ||
| // y_offset points up | ||
| Field3D zt_prime_up(&mesh), zt_prime_down(&mesh); | ||
| Field3D zt_prime_up(&mesh); |
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warning: no header providing "Field3D" is directly included [misc-include-cleaner]
src/mesh/parallel/shiftedmetricinterp.cxx:33:
- #include "bout/parallel_boundary_region.hxx"
+ #include "bout/field3d.hxx"
+ #include "bout/parallel_boundary_region.hxx"
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Supports #3242
Note these don't actually add Z parallelisation, just let us handle it correctly in various places
Mesh::GlobalZfor global Z index in[0, 1]Mesh::getNZPE/getZProcIndexfor Z processor infobout::fft::checkZSerialto guard routines using FFTThese also make a lot of code more consistent between the directions