PCBlockDiagonal::PCBlockDiagonalContext Struct Reference

#include <PCBlockDiagonal.hpp>

Collaboration diagram for PCBlockDiagonal::PCBlockDiagonalContext:

Public Attributes
Mat	A11_matrix_subblock
Mat	A22_matrix_subblock
PC	PC_amg_A11
PC	PC_amg_A22
Vec	x1_subvector
Vec	x2_subvector
Vec	y1_subvector
Vec	y2_subvector
VecScatter	A11_scatter_ctx
VecScatter	A22_scatter_ctx

Detailed Description

This struct defines the state of the preconditioner (initialised data and objects to be reused)

Definition at line 92 of file PCBlockDiagonal.hpp.

Member Data Documentation

A11_matrix_subblock

Mat PCBlockDiagonal::PCBlockDiagonalContext::A11_matrix_subblock

Mat object that stores the A11 subblock

Definition at line 93 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalCreate(), and PCBlockDiagonal::PCBlockDiagonalSetUp().

A11_scatter_ctx

VecScatter PCBlockDiagonal::PCBlockDiagonalContext::A11_scatter_ctx

Scattering context: gather x1 from x and scatter y1 back into y

Definition at line 101 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalCreate().

A22_matrix_subblock

Mat PCBlockDiagonal::PCBlockDiagonalContext::A22_matrix_subblock

Mat object that stores the A22 subblock

Definition at line 94 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalCreate(), and PCBlockDiagonal::PCBlockDiagonalSetUp().

A22_scatter_ctx

VecScatter PCBlockDiagonal::PCBlockDiagonalContext::A22_scatter_ctx

Scattering context: gather x2 from x and scatter y2 back into y

Definition at line 102 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalCreate().

PC_amg_A11

PC PCBlockDiagonal::PCBlockDiagonalContext::PC_amg_A11

inv(A11) is approximated by an AMG cycle. We compute it with HYPRE via a PC object

Definition at line 95 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalSetUp().

PC_amg_A22

PC PCBlockDiagonal::PCBlockDiagonalContext::PC_amg_A22

inv(A22) is approximated by an AMG cycle. We compute it with HYPRE via a PC object

Definition at line 96 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalSetUp().

x1_subvector

Vec PCBlockDiagonal::PCBlockDiagonalContext::x1_subvector

Used to store the first half of the vector to be preconditioned

Definition at line 97 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalCreate().

x2_subvector

Vec PCBlockDiagonal::PCBlockDiagonalContext::x2_subvector

Used to store the second half of the vector to be preconditioned

Definition at line 98 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalCreate().

y1_subvector

Vec PCBlockDiagonal::PCBlockDiagonalContext::y1_subvector

Used to store the first half of the preconditioned vector

Definition at line 99 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalCreate().

y2_subvector

Vec PCBlockDiagonal::PCBlockDiagonalContext::y2_subvector

Used to store the second half of the preconditioned vector

Definition at line 100 of file PCBlockDiagonal.hpp.

Referenced by PCBlockDiagonal::PCBlockDiagonalCreate().

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The documentation for this struct was generated from the following file:

• linalg/src/PCBlockDiagonal.hpp