Object: ConstructROB

under ConstructROB { ... }
    ProjectInitialCondition = projectic-flag;
    PreprocessForProjections = preprocessproj-flag;
    under Clustering { ... }
    under StateROB (or ResidualROB) {
        under Snapshots { ... }
        under Compression { ... }
    }
    under RelativeProjectionError { ... }
}

with

projectic-flag [False]:
This flag controls the pre-computation of the ROM initial condition or quantities related to the interpolation of multiple initial conditions in the online evaluation of a ROM. During an online nonlinear ROM computation, AERO-F automatically loads the files pre-computed by this command for the nonlinear ROM initial condition (the filename given by Input.Solution is ignored).

True
Pre-computations such as the projection of the high-dimensional initial condition are performed.

False
No pre-computations are performed.

preprocessproj-flag [False]:
This flag controls the pre-computation of the various quantities used in the fast switching between local subspace approximations in an online local ROM simulation. Thus, this flag is only relevant when NonlinearRomFilesystem.NumClusters $>1$ .

True
Pre-computations for fast distance comparisons and fast switching between clusters are performed.

False
No pre-computations are performed.

Clustering:
Controls the clustering of the state snapshots for constructing a local subspace approximation.

Snapshots:
Controls the referencing and scaling of the snapshots.

Compression:
Controls the compression of snapshots to form an ROB.

RelativeProjectionError:
Controls the computation of the relative projection error to evaluate the accuracy of a constructed subspace approximation.

Subsections