class gpr::linalg::ScalapackState

#include <ScalapackState.h>
 
class ScalapackState {
public:
    // structs
 
    struct DescCacheEntry;
 
    // methods
 
    static ScalapackState& instance();
    static int recommended_block_size(int requested_block, int nprocs);
    static int recommended_nprow(int nprocs, int block_size);
    void initialize(int block_size = 0);
    void make_desc(int m, int n, int* desc) const;
    int local_rows(int m) const;
    int local_cols(int n) const;
    int local_index_for_global(int global_index, int block_size, int proc_coord, int nprocs_dim) const;
    int global_index_for_local(int local_index, int block_size, int proc_coord, int nprocs_dim) const;
    std::vector<double> scatter(const EigenMatrix& global, int m, int n, int* desc) const;
    std::vector<double> scatter_root_bcast(const EigenMatrix& global, int m, int n, int* desc) const;
    std::vector<double> scatter_colvector_root(const Eigen::VectorXd& global, int m, int* desc) const;
    EigenMatrix gather(const double* local, const int* desc, int m, int n, bool broadcast_result = true) const;
    Eigen::VectorXd gather_colvector_root(const double* local, const int* desc, int m, bool broadcast_result = true) const;
    void cache_L(std::vector<double> L_dist, const int* desc, int n);
    bool has_cached_L() const;
    const double* cached_L() const;
    double* cached_L_mut();
    const int* cached_L_desc() const;
    int cached_n() const;
    void invalidate_L();
    void cache_inv(std::vector<double> inv_dist, const int* desc, int n);
    bool has_cached_inv() const;
    const double* cached_inv() const;
    const int* cached_inv_desc() const;
    int cached_inv_n() const;
    void invalidate_inv();
    bool owns_global_entry(int global_row, int global_col) const;
    double cached_inv_local_entry(int global_row, int global_col) const;
    int context() const;
    int nprocs() const;
    int myrank() const;
    int myrow() const;
    int mycol() const;
    int nprow() const;
    int npcol() const;
    int block_size() const;
    bool is_root() const;
 
private:
    // construction
 
    ~ScalapackState();
};