.. _method-multifidelity_sampling-numerical_solve-fallback:

""""""""
fallback
""""""""


Fall back to a numerical solve when needed for mitigation in MFMC


.. toctree::
   :hidden:
   :maxdepth: 1



**Specification**

- *Alias:* None

- *Arguments:* None


**Description**


Conditionally employ a numerical solve for allocation of
samples per model instance within multifidelity Monte Carlo (MFMC).
The analytic allocation is employed unless a problem is encountered
(mis-ordered model correlations) that requires mitigation.



**Examples**



.. code-block::

    method,
            model_pointer = 'ENSEMBLE'
            multifidelity_sampling
              numerical_solve nip fallback
              max_function_evaluations = 1000
              pilot_samples = 100
              seed = 8674132




