The Design Document page provides a description of the algorithms, implementation and planned testing including unit, verification, validation and performance testing. Please read Step 1.3 Performance Expectations that explains feature documentation requirements from the performance group point of view.
Design Document
In the table below 4.Equ means Equations and Algorithms, 5.Ver means Verification, 6.Perf - Performance, 7. Val - Validation, 
- competed, 
- in progress, 
- not done
Overview table for the owner and an approver of this feature
1.Description | Uncertainty quantification framework |
| 2.Owner | Khachik Sargsyan, Daniel Ricciuto |
| 3.Created | |
| 4.Equ | |
| 5.Ver | |
| 6.Perf | |
| 7.Val | |
| 8.Approver | Peter Thornton, William Riley (Unlicensed) |
| 9.Approved Date |
Title: Uncertainty Quantification Framework
Requirements and Design
ACME Land Group
Date:
Summary
A set of Python scripts is being included in the ACME Land Model v1 (ALMv1) to perform basic forward uncertainty quantification tasks, such as surrogate model construction and variance-based sensitivity analysis. Besides pre- and post-processing steps, the scripts heavily utilize functionalities of Uncertainty Quantification Toolkit (UQTk) being developed at SNL-CA as a lightweight C++/Python UQ library. Version 3.0 of UQTk will be available publicly in spring - any time before that the library is available upon request (see http://www.sandia.gov/uqtoolkit/). The general workflow consists of three steps (a) pre-processing: input parameter sampling, (b) ensemble simulation of ALM, (c) post-processing: for each output quantity of interest, build a polynomial surrogate and compute Sobol sensitivity indices.
Requirements
Requirement: Generate input parameter ensemble
Date last modified:
Contributors: Khachik Sargsyan, Daniel Ricciuto
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Requirement: Perform ALM ensemble simulations
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Contributors: Daniel Ricciuto
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Requirement: Perform ALM ensemble simulations
Date last modified:
Contributors: Daniel Ricciuto
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Requirement: Polynomial Chaos surrogate model construction
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Contributors: Khachik Sargsyan
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Requirement: Variance-based uncertainty decomposition
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Contributors: Khachik Sargsyan
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Algorithmic Formulations
For each requirement, there is a design solution that is intended to meet that requirement. Design solutions can include detailed technical discussions of PDEs, algorithms, solvers and similar, as well as technical discussion of performance issues. In general, this section should steer away from a detailed discussion of low-level software issues such as variable declarations, interfaces and sequencing.
Design solution: Generate input parameter ensemble
Date last modified:
Contributors: Khachik Sargsyan, Daniel Ricciuto
Add text here...
Design solution: Perform ALM ensemble simulations
Date last modified:
Contributors: Daniel Ricciuto
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Design solution: Polynomial Chaos surrogate model construction
Date last modified:
Contributors: Khachik Sargsyan
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Design solution: Variance-based uncertainty decomposition
Date last modified:
Contributors: Khachik Sargsyan
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Design and Implementation
Implementation: Generate input parameter ensemble
Date last modified:
Contributors: Khachik Sargsyan, Daniel Ricciuto
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Implementation: Perform ALM ensemble simulations
Date last modified:
Contributors: Daniel Ricciuto
Add text here...
Implementation: Polynomial Chaos surrogate model construction
Date last modified:
Contributors: Khachik Sargsyan
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Implementation: Variance-based uncertainty decomposition
Date last modified:
Contributors: Khachik Sargsyan
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Planned Verification and Unit Testing
Verification and Unit Testing: short-desciption-of-testing-here
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Contributors: (add your name to this list if it does not appear)
How will XXX be tested? i.e. how will be we know when we have met requirement XXX. Will these unit tests be included in the ongoing going forward?
Planned Validation Testing
Validation Testing: short-desciption-of-testing-here
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How will XXX be tested? What observational or other dataset will be used? i.e. how will be we know when we have met requirement XXX. Will these unit tests be included in the ongoing going forward?
Planned Performance Testing
Performance Testing: short-desciption-of-testing-here
Date last modified:
Contributors: (add your name to this list if it does not appear)
How will XXX be tested? i.e. how will be we know when we have met requirement XXX. Will these unit tests be included in the ongoing going forward?