.. _lblAbout:

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About
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This open-source research application, which is available at |tool github link|, is released under the **2-Clause BSD** license (see :ref:`lblLicense`).

The Regional Resilience Determination (R2D) tool is an extensible scientific workflow system that can be used to quantify the effects of hazards on regional communities. The tool incorporates the same workflow components used in the WE-UQ, EE-UQ, and PBE tools, extended to consider multiple asssets and regionally distributed hazards. 



Whether running locally or remotely, the computations are performed, as will be discussed in the :ref:`lbl-technical-manual`, by an application called rWHALE. rWHALE runs the scientific workflow specified by invoking and running a number of different applications, taking the outputs from some programs and providing them as inputs to others. The design of the R2D and rWhale applications is such that researchers can include their own application in the workflow. This will ensure researchers are not limited to using the default applications we provide and will be enthused to provide
their applications for others to use.

As the computations can be prohibitively expensive to perform on a user's local computer, especially considering uncertainty quantification is involved,
the user has the option to perform the computations remotely on the
Frontera supercomputer. Frontera is located at the Texas Advanced
Computing Center (TACC) and made available to the user through NHERI
DesignSafe, the cyberinfrastructure provider for the distributed NSF
funded Natural Hazards in Engineering Research Infrastructure (NHERI)
facility.      


This document covers Version |tool version|  of the tool. Users are encouraged to comment on what additional features and capabilities
they would like to see in this application. These requests and feedback can be submitted through the |messageBoard| we greatly appreciate any input you have. If there are features you want, chances are many of your colleagues also would benefit from them. Users are encouraged to review |app requirements| to see what features are requested for this application.