Hyperreduction.h

 
// Description: Interface to hyperreduction algorithms.
 
#ifndef included_Hyperreduction_h
#define included_Hyperreduction_h
 
 
#include <string>
#include <unordered_map>
 
#include <vector>
#include <memory>
 
namespace CAROM {
 
enum SamplingType
{
    deim,      // Default, DEIM
    gnat,      // GNAT
    qdeim,     // QDEIM
    sopt       // S-OPT
};
 
static std::unordered_map<std::string, SamplingType> SamplingTypeMap =
{
    {"deim", deim},
    {"gnat", gnat},
    {"qdeim", qdeim},
    {"sopt", sopt}
};
 
class Matrix;
 
class Hyperreduction
{
public:
 
    Hyperreduction(SamplingType stype) :
        samplingType(stype)
    { }
 
    Hyperreduction(const char* sampling_type);
 
    void SetSamplingType(SamplingType stype)
    {
        samplingType = stype;
    }
 
    void ComputeSamples(const std::shared_ptr<Matrix> & f_basis,
                        int num_f_basis_vectors_used,
                        std::vector<int>& f_sampled_row,
                        std::vector<int>& f_sampled_rows_per_proc,
                        Matrix& f_basis_sampled_inv,
                        int myid,
                        int num_procs,
                        const int num_samples_req = -1,
                        std::vector<int> *init_samples=NULL,
                        bool qr_factorize = false);
 
private:
    SamplingType samplingType;
};
 
}
#endif