MAGMA  2.3.0
Matrix Algebra for GPU and Multicore Architectures
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Functions

magma_int_t magma_dcumiccsetup (magma_d_matrix A, magma_d_preconditioner *precond, magma_queue_t queue)
 Prepares the IC preconditioner via cuSPARSE. More...
 
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. More...
 
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. More...
 
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. More...
 
magma_int_t magma_dpariluupdate (magma_d_matrix A, magma_d_preconditioner *precond, magma_int_t updates, magma_queue_t queue)
 Updates an existing preconditioner via additional iterative ILU sweeps for previous factorization initial guess (PFIG). More...
 
magma_int_t magma_dparicsetup (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. More...
 
magma_int_t magma_dparicupdate (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). More...
 

Detailed Description

Function Documentation

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]Amagma_d_matrix input matrix A
[in,out]precondmagma_d_preconditioner* preconditioner parameters
[in]queuemagma_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]precondmagma_d_preconditioner* preconditioner parameters
[in]queuemagma_queue_t Queue to execute in.
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]bmagma_d_matrix RHS
[in,out]xmagma_d_matrix* vector to precondition
[in,out]precondmagma_d_preconditioner* preconditioner parameters
[in]queuemagma_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]bmagma_d_matrix RHS
[in,out]xmagma_d_matrix* vector to precondition
[in,out]precondmagma_d_preconditioner* preconditioner parameters
[in]queuemagma_queue_t Queue to execute in.
magma_int_t magma_dpariluupdate ( magma_d_matrix  A,
magma_d_preconditioner *  precond,
magma_int_t  updates,
magma_queue_t  queue 
)

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

See Anzt et al., Parallel Computing, 2015.

Parameters
[in]Amagma_d_matrix input matrix A, current target system
[in]precondmagma_d_preconditioner* preconditioner parameters
[in]updatesmagma_int_t number of updates
[in]queuemagma_queue_t Queue to execute in.
magma_int_t magma_dparicsetup ( 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]Amagma_d_matrix input matrix A
[in]bmagma_d_matrix input RHS b
[in,out]precondmagma_d_preconditioner* preconditioner parameters
[in]queuemagma_queue_t Queue to execute in.
magma_int_t magma_dparicupdate ( 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]Amagma_d_matrix input matrix A, current target system
[in]precondmagma_d_preconditioner* preconditioner parameters
[in]updatesmagma_int_t number of updates
[in]queuemagma_queue_t Queue to execute in.