haskell-igraph-0.8.5: igraph/include/prpack/prpack_solver.h
#ifndef PRPACK_SOLVER
#define PRPACK_SOLVER
#include "prpack_base_graph.h"
#include "prpack_csc.h"
#include "prpack_csr.h"
#include "prpack_edge_list.h"
#include "prpack_preprocessed_ge_graph.h"
#include "prpack_preprocessed_gs_graph.h"
#include "prpack_preprocessed_scc_graph.h"
#include "prpack_preprocessed_schur_graph.h"
#include "prpack_result.h"
// TODO Make this a user configurable variable
#define PRPACK_SOLVER_MAX_ITERS 1000000
namespace prpack {
// Solver class.
class prpack_solver {
private:
// instance variables
double read_time;
prpack_base_graph* bg;
prpack_preprocessed_ge_graph* geg;
prpack_preprocessed_gs_graph* gsg;
prpack_preprocessed_schur_graph* sg;
prpack_preprocessed_scc_graph* sccg;
bool owns_bg;
// methods
void initialize();
static prpack_result* solve_via_ge(
const double alpha,
const double tol,
const int num_vs,
const double* matrix,
const double* uv);
static prpack_result* solve_via_ge_uv(
const double alpha,
const double tol,
const int num_vs,
const double* matrix,
const double* d,
const double* u,
const double* v);
static prpack_result* solve_via_gs(
const double alpha,
const double tol,
const int num_vs,
const int num_es,
const int* heads,
const int* tails,
const double* vals,
const double* ii,
const double* d,
const double* num_outlinks,
const double* u,
const double* v);
static prpack_result* solve_via_gs_err(
const double alpha,
const double tol,
const int num_vs,
const int num_es,
const int* heads,
const int* tails,
const double* ii,
const double* num_outlinks,
const double* u,
const double* v);
static prpack_result* solve_via_schur_gs(
const double alpha,
const double tol,
const int num_vs,
const int num_no_in_vs,
const int num_no_out_vs,
const int num_es,
const int* heads,
const int* tails,
const double* vals,
const double* ii,
const double* d,
const double* num_outlinks,
const double* uv,
const int* encoding,
const int* decoding,
const bool should_normalize = true);
static prpack_result* solve_via_schur_gs_uv(
const double alpha,
const double tol,
const int num_vs,
const int num_no_in_vs,
const int num_no_out_vs,
const int num_es,
const int* heads,
const int* tails,
const double* vals,
const double* ii,
const double* d,
const double* num_outlinks,
const double* u,
const double* v,
const int* encoding,
const int* decoding);
static prpack_result* solve_via_scc_gs(
const double alpha,
const double tol,
const int num_vs,
const int num_es_inside,
const int* heads_inside,
const int* tails_inside,
const double* vals_inside,
const int num_es_outside,
const int* heads_outside,
const int* tails_outside,
const double* vals_outside,
const double* ii,
const double* d,
const double* num_outlinks,
const double* uv,
const int num_comps,
const int* divisions,
const int* encoding,
const int* decoding,
const bool should_normalize = true);
static prpack_result* solve_via_scc_gs_uv(
const double alpha,
const double tol,
const int num_vs,
const int num_es_inside,
const int* heads_inside,
const int* tails_inside,
const double* vals_inside,
const int num_es_outside,
const int* heads_outside,
const int* tails_outside,
const double* vals_outside,
const double* ii,
const double* d,
const double* num_outlinks,
const double* u,
const double* v,
const int num_comps,
const int* divisions,
const int* encoding,
const int* decoding);
static void ge(const int sz, double* A, double* b);
static void normalize(const int length, double* x);
static prpack_result* combine_uv(
const int num_vs,
const double* d,
const double* num_outlinks,
const int* encoding,
const double alpha,
const prpack_result* ret_u,
const prpack_result* ret_v);
public:
// constructors
prpack_solver(const prpack_csc* g);
prpack_solver(const prpack_int64_csc* g);
prpack_solver(const prpack_csr* g);
prpack_solver(const prpack_edge_list* g);
prpack_solver(prpack_base_graph* g, bool owns_bg=true);
prpack_solver(const char* filename, const char* format, const bool weighted);
// destructor
~prpack_solver();
// methods
int get_num_vs();
prpack_result* solve(const double alpha, const double tol, const char* method);
prpack_result* solve(
const double alpha,
const double tol,
const double* u,
const double* v,
const char* method);
};
}
#endif