StructuredMatrix.h

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/*
 * STRUMPACK -- STRUctured Matrices PACKage, Copyright (c) 2014, The
 * Regents of the University of California, through Lawrence Berkeley
 * National Laboratory (subject to receipt of any required approvals
 * from the U.S. Dept. of Energy).  All rights reserved.
 *
 * If you have questions about your rights to use or distribute this
 * software, please contact Berkeley Lab's Technology Transfer
 * Department at TTD@lbl.gov.
 *
 * NOTICE. This software is owned by the U.S. Department of Energy. As
 * such, the U.S. Government has been granted for itself and others
 * acting on its behalf a paid-up, nonexclusive, irrevocable,
 * worldwide license in the Software to reproduce, prepare derivative
 * works, and perform publicly and display publicly.  Beginning five
 * (5) years after the date permission to assert copyright is obtained
 * from the U.S. Department of Energy, and subject to any subsequent
 * five (5) year renewals, the U.S. Government is granted for itself
 * and others acting on its behalf a paid-up, nonexclusive,
 * irrevocable, worldwide license in the Software to reproduce,
 * prepare derivative works, distribute copies to the public, perform
 * publicly and display publicly, and to permit others to do so.
 *
 * Developers: Pieter Ghysels, Francois-Henry Rouet, Xiaoye S. Li.
 *             (Lawrence Berkeley National Lab, Computational Research
 *             Division).
 *
 */
#ifndef STRUMPACK_STRUCTURED_C_H
#define STRUMPACK_STRUCTURED_C_H
 
#include <stdint.h>
#include <complex.h>
#undef I
 
#include "StrumpackConfig.hpp"
 
typedef enum {
  SP_TYPE_HSS = 0,
  SP_TYPE_BLR,
  SP_TYPE_HODLR,
  SP_TYPE_HODBF,
  SP_TYPE_BUTTERFLY,
  SP_TYPE_LR,
  SP_TYPE_LOSSY,
  SP_TYPE_LOSSLESS
} SP_STRUCTURED_TYPE;
 
 
typedef struct CSPOptions {
  SP_STRUCTURED_TYPE type;
  double rel_tol;
  double abs_tol;
  int leaf_size;
  int max_rank;
  int verbose;
} CSPOptions;
 
 
typedef void* CSPStructMat;
 
 
#ifdef __cplusplus
extern "C" {
#endif
 
  // TODO:
  // - query statistics: memory usage, levels, rank, ...
  // - more construction routines, matvec, ..
  // - pass clustertree?
  // - in HODLR/HODBF store the MPIComm instead of a pointer!!
 
  void SP_s_struct_default_options(CSPOptions* opts);
  void SP_d_struct_default_options(CSPOptions* opts);
  void SP_c_struct_default_options(CSPOptions* opts);
  void SP_z_struct_default_options(CSPOptions* opts);
 
 
  void SP_s_struct_destroy(CSPStructMat* S);
  void SP_d_struct_destroy(CSPStructMat* S);
  void SP_c_struct_destroy(CSPStructMat* S);
  void SP_z_struct_destroy(CSPStructMat* S);
 
 
  int SP_s_struct_rows(const CSPStructMat S);
  int SP_d_struct_rows(const CSPStructMat S);
  int SP_c_struct_rows(const CSPStructMat S);
  int SP_z_struct_rows(const CSPStructMat S);
 
 
  int SP_s_struct_cols(const CSPStructMat S);
  int SP_d_struct_cols(const CSPStructMat S);
  int SP_c_struct_cols(const CSPStructMat S);
  int SP_z_struct_cols(const CSPStructMat S);
 
 
  long long int SP_s_struct_memory(const CSPStructMat S);
  long long int SP_d_struct_memory(const CSPStructMat S);
  long long int SP_c_struct_memory(const CSPStructMat S);
  long long int SP_z_struct_memory(const CSPStructMat S);
 
 
  long long int SP_s_struct_nonzeros(const CSPStructMat S);
  long long int SP_d_struct_nonzeros(const CSPStructMat S);
  long long int SP_c_struct_nonzeros(const CSPStructMat S);
  long long int SP_z_struct_nonzeros(const CSPStructMat S);
 
 
  int SP_s_struct_rank(const CSPStructMat S);
  int SP_d_struct_rank(const CSPStructMat S);
  int SP_c_struct_rank(const CSPStructMat S);
  int SP_z_struct_rank(const CSPStructMat S);
 
 
  int SP_s_struct_from_dense(CSPStructMat* S, int rows, int cols,
                             const float* A, int ldA,
                             const CSPOptions* opts);
  int SP_d_struct_from_dense(CSPStructMat* S, int rows, int cols,
                             const double* A, int ldA,
                             const CSPOptions* opts);
  int SP_c_struct_from_dense(CSPStructMat* S, int rows, int cols,
                             const float _Complex* A, int ldA,
                             const CSPOptions* opts);
  int SP_z_struct_from_dense(CSPStructMat* S, int rows, int cols,
                             const double _Complex* A, int ldA,
                             const CSPOptions* opts);
 
 
  int SP_s_struct_from_elements(CSPStructMat* S, int rows, int cols,
                                float(int i, int j),
                                const CSPOptions* opts);
  int SP_d_struct_from_elements(CSPStructMat* S, int rows, int cols,
                                double(int i, int j),
                                const CSPOptions* opts);
  int SP_c_struct_from_elements(CSPStructMat* S, int rows, int cols,
                                float _Complex(int i, int j),
                                const CSPOptions* opts);
  int SP_z_struct_from_elements(CSPStructMat* S, int rows, int cols,
                                double _Complex(int i, int j),
                                const CSPOptions* opts);
 
 
 
  int SP_s_struct_mult(const CSPStructMat S, char trans, int m,
                       const float* B, int ldB,
                       float* C, int ldC);
  int SP_d_struct_mult(const CSPStructMat S, char trans, int m,
                       const double* B, int ldB,
                       double* C, int ldC);
  int SP_c_struct_mult(const CSPStructMat S, char trans, int m,
                       const float _Complex* B, int ldB,
                       float _Complex* C, int ldC);
  int SP_z_struct_mult(const CSPStructMat S, char trans, int m,
                       const double _Complex* B, int ldB,
                       double _Complex* C, int ldC);
 
 
  int SP_s_struct_factor(CSPStructMat S);
  int SP_d_struct_factor(CSPStructMat S);
  int SP_c_struct_factor(CSPStructMat S);
  int SP_z_struct_factor(CSPStructMat S);
 
 
  int SP_s_struct_solve(const CSPStructMat S, int nrhs,
                        float* B, int ldB);
  int SP_d_struct_solve(const CSPStructMat S, int nrhs,
                        double* B, int ldB);
  int SP_c_struct_solve(const CSPStructMat S, int nrhs,
                        float _Complex* B, int ldB);
  int SP_z_struct_solve(const CSPStructMat S, int nrhs,
                        double _Complex* B, int ldB);
 
 
  int SP_s_struct_shift(CSPStructMat S, float s);
  int SP_d_struct_shift(CSPStructMat S, double s);
  int SP_c_struct_shift(CSPStructMat S, float _Complex s);
  int SP_z_struct_shift(CSPStructMat S, double _Complex s);
 
#ifdef __cplusplus
}
#endif
 
#endif