intrp::protocols::ComputeTargetPoints Struct Reference

A protocol for the type alias compute_target_points found in an InterpolationTargetTag. More...

#include <ComputeTargetPoints.hpp>

Classes
struct	test

Detailed Description

A protocol for the type alias compute_target_points found in an InterpolationTargetTag.

Details

A struct conforming to the ComputeTargetPoints protocol must have

• a type alias is_sequential that is either std::true_type or std::false_type which indicates if interpolations depend on previous interpolations' results. It is assumed in the interpolation framework that only horizon finds are sequential (e.y. anything that uses the intrp::Interpolator component is a sequential horizon find).
• a type alias frame that denotes the frame the target points are computed in
• a function points with signature matching the one in the example that will compute the points in the given frame (with or without the const & on the box argument).

A struct that conforms to this protocol can optionally have any of these members as well:

• a type alias simple_tags that list simple tags to be added to the DataBox of the InterpolationTarget
• a type alias compute_tags that list compute tags to be added to the DataBox of the InterpolationTarget
• a type alias const_global_cache_tags with tags to be put in the GlobalCache
• a function initialize with signature matching the one in the example that is run during the Initialization phase of the InterpolationTarget and can initialize any of the simple_tags added.

Here is an example of a class that conforms to this protocols:

struct ExampleComputeTargetPoints
    : tt::ConformsTo<intrp::protocols::ComputeTargetPoints> {
  // This is not required by the protocol, but these tags will also be added to
  // the global cache
  using const_global_cache_tags = tmpl::list<FakeCacheTag>;
 
  using is_sequential = std::false_type;
 
  using frame = ::Frame::Grid;
 
  // These are not required by the protocol, but these tags will be added to the
  // InterpolationTarget DataBox.
  using simple_tags = tmpl::list<FakeSimpleTag>;
  using compute_tags = tmpl::list<FakeComputeTag>;
 
  // This is not required by the protocol, but this function can be specified
  // and will be run during the Initialization phase of the InterpolationTarget
  // parallel component
  template <typename DbTags, typename Metavariables>
  static void initialize(
      const gsl::not_null<db::DataBox<DbTags>*> /*box*/,
      const Parallel::GlobalCache<Metavariables>& /*cache*/) {
    // Initialize FakeSimpleTag here
  }
 
  template <typename Metavariables, typename DbTags, typename TemporalId>
  static tnsr::I<DataVector, 3, frame> points(
      const db::DataBox<DbTags>& /*box*/,
      const tmpl::type_<Metavariables>& /*meta*/,
      const TemporalId& /*temporal_id*/) {
    // This function will compute points on a given surface that we are
    // interpolating onto
    return tnsr::I<DataVector, 3, frame>{};
  }
};

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The documentation for this struct was generated from the following file:

• src/ParallelAlgorithms/Interpolation/Protocols/ComputeTargetPoints.hpp