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Opm::Accelerator::BISAI< block_size > Class Template Reference

This class implements a Blocked version of the Incomplete Sparse Approximate Inverse (ISAI) preconditioner. More...

#include <BISAI.hpp>

Inheritance diagram for Opm::Accelerator::BISAI< block_size >:
Opm::Accelerator::Preconditioner< block_size >

Public Member Functions

 BISAI (bool opencl_ilu_parallel, int verbosity)
 
void setOpencl (std::shared_ptr< cl::Context > &context, std::shared_ptr< cl::CommandQueue > &queue) override
 
bool analyze_matrix (BlockedMatrix *mat) override
 
bool analyze_matrix (BlockedMatrix *mat, BlockedMatrix *jacMat) override
 
bool create_preconditioner (BlockedMatrix *mat) override
 
bool create_preconditioner (BlockedMatrix *mat, BlockedMatrix *jacMat) override
 
void apply (const cl::Buffer &y, cl::Buffer &x) override
 

Additional Inherited Members

- Public Types inherited from Opm::Accelerator::Preconditioner< block_size >
enum  PreconditionerType { BILU0 , CPR , BISAI }
 
- Static Public Member Functions inherited from Opm::Accelerator::Preconditioner< block_size >
static std::unique_ptr< Preconditioner > create (PreconditionerType type, int verbosity, bool opencl_ilu_parallel)
 
- Protected Member Functions inherited from Opm::Accelerator::Preconditioner< block_size >
 Preconditioner (int verbosity_)
 
- Protected Attributes inherited from Opm::Accelerator::Preconditioner< block_size >
int N = 0
 
int Nb = 0
 
int nnz = 0
 
int nnzb = 0
 
int verbosity = 0
 
std::shared_ptr< cl::Context > context
 
std::shared_ptr< cl::CommandQueue > queue
 
std::vector< cl::Event > events
 
cl_int err
 

Detailed Description

template<unsigned int block_size>
class Opm::Accelerator::BISAI< block_size >

This class implements a Blocked version of the Incomplete Sparse Approximate Inverse (ISAI) preconditioner.

Inspired by the paper "Incomplete Sparse Approximate Inverses for Parallel Preconditioning" by Anzt et. al.

Member Function Documentation

◆ analyze_matrix() [1/2]

template<unsigned int block_size>
bool Opm::Accelerator::BISAI< block_size >::analyze_matrix ( BlockedMatrix *  mat)
overridevirtual

Implements Opm::Accelerator::Preconditioner< block_size >.

◆ analyze_matrix() [2/2]

template<unsigned int block_size>
bool Opm::Accelerator::BISAI< block_size >::analyze_matrix ( BlockedMatrix *  mat,
BlockedMatrix *  jacMat 
)
overridevirtual

Reimplemented from Opm::Accelerator::Preconditioner< block_size >.

◆ apply()

template<unsigned int block_size>
void Opm::Accelerator::BISAI< block_size >::apply ( const cl::Buffer &  y,
cl::Buffer &  x 
)
overridevirtual

Implements Opm::Accelerator::Preconditioner< block_size >.

◆ create_preconditioner() [1/2]

template<unsigned int block_size>
bool Opm::Accelerator::BISAI< block_size >::create_preconditioner ( BlockedMatrix *  mat)
overridevirtual

Implements Opm::Accelerator::Preconditioner< block_size >.

◆ create_preconditioner() [2/2]

template<unsigned int block_size>
bool Opm::Accelerator::BISAI< block_size >::create_preconditioner ( BlockedMatrix *  mat,
BlockedMatrix *  jacMat 
)
overridevirtual

Reimplemented from Opm::Accelerator::Preconditioner< block_size >.

◆ setOpencl()

template<unsigned int block_size>
void Opm::Accelerator::BISAI< block_size >::setOpencl ( std::shared_ptr< cl::Context > &  context,
std::shared_ptr< cl::CommandQueue > &  queue 
)
overridevirtual

Reimplemented from Opm::Accelerator::Preconditioner< block_size >.

The documentation for this class was generated from the following files: