schur_preconditioner.hpp

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#pragma once
 
#include <graphite/graph.hpp>
#include <graphite/schur.hpp>
 
namespace graphite {
 
template <typename T, typename S> class SchurPreconditioner {
public:
  virtual ~SchurPreconditioner() = default;
 
  virtual void update_structure(Graph<T, S> *graph,
                                SchurComplement<T, S> *schur,
                                StreamPool &streams) = 0;
 
  virtual void update_values(Graph<T, S> *graph, SchurComplement<T, S> *schur,
                             StreamPool &streams) = 0;
 
  virtual void set_damping_factor(Graph<T, S> *graph,
                                  SchurComplement<T, S> *schur,
                                  T damping_factor, const bool use_identity,
                                  StreamPool &streams) = 0;
 
  virtual void apply(Graph<T, S> *graph, SchurComplement<T, S> *schur, T *z,
                     const T *r, StreamPool &streams) = 0;
};
 
} // namespace graphite