romtools.workflows.inverse.mf_vi_rom_substeps#

ROM-only optimizer substeps for multifidelity variational inference.

Substeps inherit the outer optimizer method and configuration. Stateful optimizers (e.g., Adam) start with fresh state for each ROM-only sequence, without affecting the outer optimizer. Newton substeps recompute both the gradient and Hessian at each variational state. No high-fidelity model calls or multifidelity control variates occur in these steps.

Functions

`apply_diagonal_rom_substeps`(*, rom_model, ...)
`apply_full_covariance_rom_substeps`(*, ...)
`restore_rom_substeps`(restart_data, start, ...)	Restore an existing run's schedule, matching MF-EKI restart semantics.
`rom_substep_restart_data`(start, end, count)
`rom_substeps_enabled`(outer_iteration, start, ...)
`validate_rom_substeps`(start, end, count)

romtools.workflows.inverse.mf_vi_rom_substeps.restore_rom_substeps(restart_data, start, end, count)[source]#: Restore an existing run’s schedule, matching MF-EKI restart semantics.