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Running ROM or residual postprocessing for cases corresponding to existing FOM runs #163

Closed pjb236 closed 5 months ago

pjb236 commented 8 months ago

The coupler requires a parameterSampler which is used to populate an array of parameter samples, but in many cases we need to run cases on the same set of samples. These cases include:

  1. Running the FOM and ROM at the same points to compute test set errors or correlations for multi-fidelity UQ.
  2. Running a post-processor to compute residual snapshots (and/or test basis snapshots) to provide data for ECSW or DEIM hyper-reduction approaches.

In these cases, being able to provide a list of existing case directories from which to obtain parameter and potentially solution data would be helpful. This would be very similar to the coupler, but with no need for a parameterSampler as far as I can see.

eparish1 commented 8 months ago

We will re-review this once the workflows w/ the model have been updated.

pjb236 commented 8 months ago

@eparish1 Sounds good, I'll try redoing my Aria workflow with the new model class. @jtencer let me know when you plan on updating the main branch of aria_tools to use model instead of the coupler.

jtencer commented 8 months ago

I'll need to wait to update the ariatools stuff until we update the SamplingCouplerBase. I've been trying not to get ahead of the romtools develop branch because ariatools relies on romtools.