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hippylib / hippyflow

Dimension reduced surrogate construction for parametric PDE maps
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More efficient Jacobian data generation #17

Closed tomoleary closed 4 months ago

tomoleary commented 2 years ago

In the case that the full Jacobian is requested, and it is either short-fat or tall-skinny randomized SVD is inefficient, and its better to compute action on identity. This case can be detected and implemented in ActiveSubspaceProjector object.