MAGMA  1.5.0
Matrix Algebra for GPU and Multicore Architectures
 All Functions Groups
single precision

Functions

magma_int_t magma_scg (magma_s_sparse_matrix A, magma_s_vector b, magma_s_vector *x, magma_s_solver_par *solver_par)
 Solves a system of linear equations A * X = B where A is a real symmetric N-by-N positive definite matrix A. More...
 
magma_int_t magma_scg_merge (magma_s_sparse_matrix A, magma_s_vector b, magma_s_vector *x, magma_s_solver_par *solver_par)
 Solves a system of linear equations A * X = B where A is a real symmetric N-by-N positive definite matrix A. More...
 
magma_int_t magma_scg_res (magma_s_sparse_matrix A, magma_s_vector b, magma_s_vector *x, magma_s_solver_par *solver_par)
 Solves a system of linear equations A * X = B where A is a real symmetric N-by-N positive definite matrix A. More...
 
magma_int_t magma_spcg (magma_s_sparse_matrix A, magma_s_vector b, magma_s_vector *x, magma_s_solver_par *solver_par, magma_s_preconditioner *precond_par)
 Solves a system of linear equations A * X = B where A is a real symmetric N-by-N positive definite matrix A. More...
 

Detailed Description

Function Documentation

magma_int_t magma_scg ( magma_s_sparse_matrix  A,
magma_s_vector  b,
magma_s_vector *  x,
magma_s_solver_par *  solver_par 
)

Solves a system of linear equations A * X = B where A is a real symmetric N-by-N positive definite matrix A.

This is a GPU implementation of the Conjugate Gradient method.

Parameters
Amagma_s_sparse_matrix input matrix A
bmagma_s_vector RHS b
xmagma_s_vector* solution approximation
solver_parmagma_s_solver_par* solver parameters
magma_int_t magma_scg_merge ( magma_s_sparse_matrix  A,
magma_s_vector  b,
magma_s_vector *  x,
magma_s_solver_par *  solver_par 
)

Solves a system of linear equations A * X = B where A is a real symmetric N-by-N positive definite matrix A.

This is a GPU implementation of the Conjugate Gradient method in variant, where multiple operations are merged into one compute kernel.

Parameters
Amagma_s_sparse_matrix input matrix A
bmagma_s_vector RHS b
xmagma_s_vector* solution approximation
solver_parmagma_s_solver_par* solver parameters
magma_int_t magma_scg_res ( magma_s_sparse_matrix  A,
magma_s_vector  b,
magma_s_vector *  x,
magma_s_solver_par *  solver_par 
)

Solves a system of linear equations A * X = B where A is a real symmetric N-by-N positive definite matrix A.

This is a GPU implementation of the Conjugate Gradient method.

Parameters
Amagma_s_sparse_matrix input matrix A
bmagma_s_vector RHS b
xmagma_s_vector* solution approximation
solver_parmagma_s_solver_par* solver parameters
magma_int_t magma_spcg ( magma_s_sparse_matrix  A,
magma_s_vector  b,
magma_s_vector *  x,
magma_s_solver_par *  solver_par,
magma_s_preconditioner *  precond_par 
)

Solves a system of linear equations A * X = B where A is a real symmetric N-by-N positive definite matrix A.

This is a GPU implementation of the Conjugate Gradient method.

Parameters
Amagma_s_sparse_matrix input matrix A
bmagma_s_vector RHS b
xmagma_s_vector* solution approximation
solver_parmagma_s_solver_par* solver parameters
precond_parmagma_s_preconditioner* preconditioner