ExaSMR Benchmarks
=================
This repository contains benchmarks for performance profiling of the OpenMC and
Shift Monte Carlo codes for the ECP ExaSMR project. Each directory contains a
Python script which uses the OpenMC Python API to create XML input files for
OpenMC.
Model Descriptions
------------------
<dl>
<dt>smr</dt>
<dd>A 3D Small Modular Reactor (SMR) model that roughly mimics the design of
the NuScale reactor. The reactor core has 37 fuel assemblies that alternate
between 3.1% enriched and 2.4% enriched UO2 fuel. The center fuel assembly
has 1.6% enriched UO2 fuel. Where possible, we have attempted to use the
same parameters for the fuel assemblies and fuel rods as those specified in
the NuScale <a
href="https://www.nrc.gov/reactors/new-reactors/design-cert/nuscale.html">design
submittal</a> to the Nuclear Regulatory Commission (NRC), for example: 264
fuel rods per assembly, 24 guide tubes per assembly, 1 instrument tube per
assembly, five spacer grids per assembly, fuel rod pitch of 0.496 in, and an
active fuel length of 200 cm. Many of the details of the actual NuScale fuel
assembly design are redacted from the design submittal because they are
export controlled/proprietary information. The purpose of our model is not
to be an exact replica of the NuScale model; rather, it is intended to
capture most of the physical complexities that are involved in modeling a
full reactor core and to provide a suitable model for carrying out full core
performance tests on the testbed architectures.</dd>
</dl>
Dependencies
------------
To generate models using the scripts in this package, you must use a recent
version of OpenMC's Python API.
