double precision
[Hermitian preconditioner]

Functions

magma_int_t magma_dcumiccsetup (magma_d_matrix A, magma_d_preconditioner *precond, magma_queue_t queue)
 Prepares the IC preconditioner via cuSPARSE.
magma_int_t magma_dcumicgeneratesolverinfo (magma_d_preconditioner *precond, magma_queue_t queue)
 Prepares the IC preconditioner solverinfo via cuSPARSE for a triangular matrix present on the device in precond->M.
magma_int_t magma_dapplycumicc_l (magma_d_matrix b, magma_d_matrix *x, magma_d_preconditioner *precond, magma_queue_t queue)
 Performs the left triangular solves using the ICC preconditioner.
magma_int_t magma_dapplycumicc_r (magma_d_matrix b, magma_d_matrix *x, magma_d_preconditioner *precond, magma_queue_t queue)
 Performs the right triangular solves using the ICC preconditioner.
magma_int_t magma_ditericsetup (magma_d_matrix A, magma_d_matrix b, magma_d_preconditioner *precond, magma_queue_t queue)
 Prepares the IC preconditioner via the iterative IC iteration.
magma_int_t magma_ditericupdate (magma_d_matrix A, magma_d_preconditioner *precond, magma_int_t updates, magma_queue_t queue)
 Updates an existing preconditioner via additional iterative IC sweeps for previous factorization initial guess (PFIG).

Function Documentation

magma_int_t magma_dapplycumicc_l ( magma_d_matrix  b,
magma_d_matrix *  x,
magma_d_preconditioner *  precond,
magma_queue_t  queue 
)

Performs the left triangular solves using the ICC preconditioner.

Parameters:
[in] b magma_d_matrix RHS
[in,out] x magma_d_matrix* vector to precondition
[in,out] precond magma_d_preconditioner* preconditioner parameters
[in] queue magma_queue_t Queue to execute in.
magma_int_t magma_dapplycumicc_r ( magma_d_matrix  b,
magma_d_matrix *  x,
magma_d_preconditioner *  precond,
magma_queue_t  queue 
)

Performs the right triangular solves using the ICC preconditioner.

Parameters:
[in] b magma_d_matrix RHS
[in,out] x magma_d_matrix* vector to precondition
[in,out] precond magma_d_preconditioner* preconditioner parameters
[in] queue magma_queue_t Queue to execute in.
magma_int_t magma_dcumiccsetup ( magma_d_matrix  A,
magma_d_preconditioner *  precond,
magma_queue_t  queue 
)

Prepares the IC preconditioner via cuSPARSE.

Parameters:
[in] A magma_d_matrix input matrix A
[in,out] precond magma_d_preconditioner* preconditioner parameters
[in] queue magma_queue_t Queue to execute in.
magma_int_t magma_dcumicgeneratesolverinfo ( magma_d_preconditioner *  precond,
magma_queue_t  queue 
)

Prepares the IC preconditioner solverinfo via cuSPARSE for a triangular matrix present on the device in precond->M.

Parameters:
[in,out] precond magma_d_preconditioner* preconditioner parameters
[in] queue magma_queue_t Queue to execute in.
magma_int_t magma_ditericsetup ( magma_d_matrix  A,
magma_d_matrix  b,
magma_d_preconditioner *  precond,
magma_queue_t  queue 
)

Prepares the IC preconditioner via the iterative IC iteration.

Parameters:
[in] A magma_d_matrix input matrix A
[in] out] precond magma_d_preconditioner* preconditioner parameters
[in] queue magma_queue_t Queue to execute in.
magma_int_t magma_ditericupdate ( magma_d_matrix  A,
magma_d_preconditioner *  precond,
magma_int_t  updates,
magma_queue_t  queue 
)

Updates an existing preconditioner via additional iterative IC sweeps for previous factorization initial guess (PFIG).

See Anzt et al., Parallel Computing, 2015.

Parameters:
[in] precond magma_d_preconditioner* preconditioner parameters
[in] magma_int_t number of updates
[in] queue magma_queue_t Queue to execute in.

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