SELF_RefinementIndicator_2D Module

Polynomial degree of the interpolant the indicator is built for.

Nodal-to-modal transform. Pmodal(ii,p) is the (p,ii) entry of the inverse Legendre Vandermonde in the L2-normalized basis, so the 1-D modal coefficients are uhat(p) = sum_ii Pmodal(ii,p) * u(ii) (first index summed, SELF matrix convention).

Elements with sigma_e below this value are flagged SELF_AMR_COARSEN.

Squared field scale the relative floor is measured against, in the units of the gate energy. Meaningful only when energyScaleIsSet is true; otherwise the scale is recomputed from the current field on every Estimate.

Whether energyScale was pinned by SetEnergyScale (true) or is computed automatically as the largest gate energy over the elements (false, the default).

Non-negative weights w_v of the gate energy g_e = sum_v w_v E_tot,e,v, indexed by solution variable. Resolved lazily, because the variable count is a property of the solution field and is not known at Init.

Whether energyWeight was supplied by SetEnergyWeights (true) or is regenerated from the driving-variable index on every Estimate (false, the default).

Per-element refinement flag: SELF_AMR_REFINE / SELF_AMR_KEEP / SELF_AMR_COARSEN.

Per-element gate energy g_e from the most recent Estimate. Retained as a diagnostic: it is the quantity the amplitude gate actually compared against the effective floor.

Per-element indicator value sigma_e = log10(S_e).

Number of (rank-local) elements the indicator arrays are sized for.

Allocated length of energyWeight (the solution variable count it was resolved for).

Allocated length of energyWeight_gpu. Zero until the first Estimate fixes the solution's variable count, which is not known at Init.

Elements with sigma_e above this value are flagged SELF_AMR_REFINE.

Elements whose gate energy is at or below relativeEnergyFloorenergyScale are treated as quiescent (hence perfectly resolved) regardless of their modal shape. Energy goes as amplitude squared, so this is 10*(dB/10) in amplitude terms: 1e-8 gates amplitudes below 1e-4 (-80 dB) of the field scale. Set to 0 to recover the pure absolute (machine-epsilon) floor.

Upper edge of the hysteresis band on the energy axis. Elements between relativeEnergyFloor and this fraction of the energy scale are flagged SELF_AMR_KEEP whatever their spectrum: too weak to justify spending levels on, too strong to declare resolved. Equal to relativeEnergyFloor by default, which collapses the band to a single hard cut. See SetRelativeEnergyFloor.