Hybrid-PIC: test RZ per-species field scaling - #2
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Adds the compact RZ regression requested in BLAST-WarpX#7103.
The test runs one step on a 16x8 RZ mesh split across two MPI ranks. It activates the per-species deposition path with
hybrid_resistive_dragand a Te-only per-species resistivity parser, then compareshybrid_rho_species_sum_fpagainst an independent physicalrho_ionsdiagnostic. The analysis checks the median, maximum, and axis relative errors.This catches the original raw-radial-deposit bug: before the fix the median error was 0.97055 and the axis error was 0.93981; on the current branch all three errors are zero to printed double precision. No checksum baseline is needed.
Tested locally with:
ctest --test-dir build_rz_pr7103 --output-on-failure -R '^test_rz_ohm_solver_resistive_drag_species_fields_picmi\.(run|analysis)$'Both tests pass in about 1.1 seconds total on two MPI ranks.