GEOPY-3011: Review logging and metric for tile size in Megabytes vs Mebibytes

[domfournier]

GEOPY-3011 - Review logging and metric for tile size in Megabytes vs Mebibytes

[Copilot]

Pull request overview

Updates output reporting and regression expectations, primarily to standardize how tile-size estimates are labeled/logged (bytes vs bits, SI vs IEC), and to align test baselines with current inversion behavior.

Changes:

• Standardized numeric formatting/targets in test utilities and updated multiple target_run regression constants.
• Updated tile size estimate labels from Gb to GB in logs/plots (unit presentation).
• Changed topography active-cell masking to use cell-bottom referencing for certain inversion types, updating downstream regression expectations.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tests/utils/targets.py	Formats printed inversion metrics in scientific notation for more consistent output.
tests/run_tests/driver_mt_test.py	Updates regression target_run values to match current results.
tests/run_tests/driver_joint_cross_gradient_test.py	Updates regression target_run and expected scaling/multiplier arrays.
tests/run_tests/driver_ip_test.py	Updates regression target_run values.
tests/run_tests/driver_ip_2d_test.py	Updates regression target_run values.
tests/run_tests/driver_dc_test.py	Updates regression target_run values.
tests/run_tests/driver_dc_2d_test.py	Updates regression target_run values.
tests/run_tests/driver_dc_2d_rotated_gradients_test.py	Updates regression target_run values and relaxes tolerance for the check.
simpeg_drivers/utils/tile_estimate.py	Renames displayed units from Gb to GB in log output and plot labeling.
simpeg_drivers/components/topography.py	Alters active-cell selection behavior by switching the topography reference point for some inversion types.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.29%. Comparing base (23da748) to head (092c952).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #457   +/-   ##
========================================
  Coverage    90.29%   90.29%           
========================================
  Files          113      113           
  Lines         7020     7020           
  Branches       865      865           
========================================
  Hits          6339     6339           
  Misses         465      465           
  Partials       216      216           

Files with missing lines	Coverage Δ
simpeg_drivers/utils/tile_estimate.py	87.68% <100.00%> (ø)

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[gmcga]

Looks good.