ML
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Interface to the Trilinos package Anasazi. More...
#include "ml_common.h"
#include <mpi.h>
#include "ml_include.h"
#include <iostream>
#include "EpetraExt_SolverMap_CrsMatrix.h"
#include "Epetra_DataAccess.h"
Namespaces | |
Teuchos | |
ML_Epetra | |
ML_Epetra: default namespace for all Epetra interfaces. | |
Functions | |
int | ML_Epetra_matvec (ML_Operator *data, int in, double *p, int out, double *ap) |
Matrix-vector function for Epetra matrices. More... | |
int | ML_Epetra_RowMatrix_matvec (ML_Operator *data, int in, double *p, int out, double *ap) |
int | ML_Epetra_CrsMatrix_matvec (ML_Operator *data, int in, double *p, int out, double *ap) |
int | ML_Epetra_VbrMatrix_matvec (ML_Operator *data, int in, double *p, int out, double *ap) |
int | Epetra_ML_GetCrsDataptrs (ML_Operator *data, double **values, int **cols, int **rowptr) |
int | ML_Epetra_getrow (ML_Operator *data, int N_requested_rows, int requested_rows[], int allocated_space, int columns[], double values[], int row_lengths[]) |
Getrow function for matrix of type Epetra_RowMatrix. More... | |
int | ML_Epetra_RowMatrix_getrow (ML_Operator *data, int N_requested_rows, int requested_rows[], int allocated_space, int columns[], double values[], int row_lengths[]) |
int | ML_Epetra_CrsMatrix_getrow (ML_Operator *data, int N_requested_rows, int requested_rows[], int allocated_space, int columns[], double values[], int row_lengths[]) |
int | ML_Epetra_CrsMatrix_get_one_row (ML_Operator *data, int N_requested_rows, int requested_rows[], int allocated_space, int columns[], double values[], int row_lengths[]) |
int | ML_Epetra_VbrMatrix_getrow (ML_Operator *data, int N_requested_rows, int requested_rows[], int allocated_space, int columns[], double values[], int row_lengths[]) |
void | ML_Set_Filter (Teuchos::ParameterList &List) |
int | ML_Epetra_matvec_Filter (ML_Operator *data, int in, double *p, int out, double *ap) |
int | ML_Epetra_getrow_Filter (ML_Operator *data, int N_requested_rows, int requested_rows[], int allocated_space, int columns[], double values[], int row_lengths[]) |
int | ML_Epetra_comm_wrapper (double vec[], void *data) |
Update vec's ghost node via communication. More... | |
int | ML_Epetra_CrsMatrix_comm_wrapper (double vec[], void *data) |
int | ML_Epetra_VbrMatrix_comm_wrapper (double vec[], void *data) |
int | ML_Epetra_CrsGraph_comm_wrapper (double vec[], void *data) |
int | ML_Epetra_CrsGraph_matvec (ML_Operator *data, int in, double *p, int out, double *ap) |
int | ML_Epetra_CrsGraph_getrow (ML_Operator *data, int N_requested_rows, int requested_rows[], int allocated_space, int columns[], double values[], int row_lengths[]) |
int | ML_Operator_WrapEpetraCrsGraph (Epetra_CrsGraph *Graph, ML_Operator *newMatrix) |
void | ML_CreateSublists (const Teuchos::ParameterList &List, Teuchos::ParameterList &newList) |
int | EpetraMatrix2MLMatrix (ML *ml_handle, int level, Epetra_RowMatrix *Amat) |
Wraps an Epetra_RowMatrix into an ML_Operators. More... | |
int | ML_Operator_WrapEpetraMatrix (Epetra_RowMatrix *A, ML_Operator *Result) |
Wraps an Epetra_RowMatrix into an ML_Operators, for the given level. More... | |
int | ML_Operator_WrapEpetraCrsMatrix (Epetra_CrsMatrix *A, ML_Operator *newMatrix, bool verbose=false) |
Wraps an Epetra_CrsMatrix into an ML_Operator, for the given level. More... | |
void | Epetra_CrsMatrix_Wrap_ML_Operator (ML_Operator *A, const Epetra_Comm &Comm, const Epetra_Map &RowMap, Epetra_CrsMatrix **Result, Epetra_DataAccess CV=::View, int base=0) |
Wraps a ML_Operator into a Epetra_CrsMatrix. More... | |
Epetra_CrsMatrix * | Epetra_MatrixMult (Epetra_RowMatrix *B, Epetra_RowMatrix *Bt) |
Multiplies two Epetra_RowMatrix's, returns the results as an Epetra_CrsMatrix. | |
Epetra_CrsMatrix * | Epetra_MatrixAdd (Epetra_RowMatrix *B, Epetra_RowMatrix *Bt, double scalar) |
Adds two Epetra_RowMatrix's, returns the result as an Epetra_CrsMatrix. | |
int | ML_Epetra_CRSinsert (ML_Operator *, int, int *, double *, int) |
int | ML_Operator2EpetraCrsMatrix (ML_Operator *Ke, Epetra_CrsMatrix *&CrsMatrix, int &MaxNumNonzeros, bool CheckNonzeroRow, double &, int base=0, bool verbose=false) |
Converts an ML_Operator into an Epetra_CrsMatrix. More... | |
int | ML_Operator2EpetraCrsMatrix (ML_Operator *Ke, Epetra_CrsMatrix *&CrsMatrix) |
Epetra_Map * | Epetra_ML_readupdatevector (char *filename, Epetra_Comm &comm) |
Epetra_CrsMatrix * | Epetra_ML_readaztecmatrix (char *filename, Epetra_Map &map, Epetra_Comm &comm) |
int | ML_Epetra::ML_Epetra_PtAP (const Epetra_CrsMatrix &A, const Epetra_CrsMatrix &P, Epetra_CrsMatrix *&Result, bool verbose=false) |
Does an P^TAP for Epetra_CrsMatrices using ML's kernels. | |
int | ML_Epetra::ML_Epetra_RAP (const Epetra_CrsMatrix &A, const Epetra_CrsMatrix &P, const Epetra_CrsMatrix &R, Epetra_CrsMatrix *&Result, bool verbose) |
Does an RAP for Epetra_CrsMatrices using ML's kernels. | |
int | ML_Epetra::Epetra_PtAP (const Epetra_CrsMatrix &A, const Epetra_CrsMatrix &P, Epetra_CrsMatrix *&Result, bool keep_zero_rows=false, bool verbose=false) |
Does an P^TAP for Epetra_CrsMatrices using EpetraExt's kernels. | |
int * | ML_Epetra::FindLocalDiricheltRowsFromOnesAndZeros (const Epetra_CrsMatrix &Matrix, int &numBCRows) |
Finds the Dirichlet rows in a square matrix that got the one-and-zeros. More... | |
void | ML_Epetra::Apply_BCsToMatrixColumns (const int *dirichletRows, int numBCRows, const Epetra_CrsMatrix &Matrix) |
Applies Dirichlet conditions to columns that rows already have. More... | |
void | ML_Epetra::Apply_BCsToMatrixRows (const int *dirichletRows, int numBCRows, const Epetra_CrsMatrix &Matrix) |
Applies Dirichlet conditions to matrix rows. | |
void | ML_Epetra::Apply_BCsToMatrixColumns (const Epetra_RowMatrix &iBoundaryMatrix, const Epetra_RowMatrix &iMatrix) |
Applies Dirichlet conditions to columns that rows already have. More... | |
void | ML_Epetra::Apply_BCsToMatrixColumns (const Epetra_IntVector &dirichletColumns, const Epetra_CrsMatrix &Matrix) |
void | ML_Epetra::Apply_BCsToGradient (const Epetra_RowMatrix &EdgeMatrix, const Epetra_RowMatrix &T) |
Applies boundary conditions to gradient matrix. (Maxwell's equations) | |
void | ML_Epetra::Apply_OAZToMatrix (int *dirichletRows, int numBCRows, const Epetra_CrsMatrix &Matrix) |
Does Row/Column OAZ to a matrix. | |
Epetra_IntVector * | ML_Epetra::LocalRowstoColumns (int *Rows, int numRows, const Epetra_CrsMatrix &Matrix) |
Returns the local column numbers of the local rows passed in. | |
Epetra_IntVector * | ML_Epetra::FindLocalDirichletColumnsFromRows (const int *dirichletRows, int numBCRows, const Epetra_CrsMatrix &Matrix) |
Finds Dirichlet the local Dirichlet columns, given the local Dirichlet rows. | |
void | ML_Epetra::Remove_Zeroed_Rows (const Epetra_CrsMatrix &Matrix, double tol=0.0) |
Drops a 1 on the diagonal of zero'd our rows. | |
Epetra_RowMatrix * | ML_Epetra::ModifyEpetraMatrixColMap (const Epetra_RowMatrix &A, EpetraExt::CrsMatrix_SolverMap &transform, const char *matrixName=0, bool verbose=false) |
Transforms Epetra matrix column map (if necessary) to be compatible with. More... | |
int | ML_Epetra::UpdateList (Teuchos::ParameterList &source, Teuchos::ParameterList &dest, bool OverWrite) |
int | ML_Operator_Destroy_DiscreteLaplacian () |
int | ML_Operator_DiscreteLaplacian (ML_Operator *Op, int SymmetricPattern, double *x_coord, double *y_coord, double *z_coord, double theta, ML_Operator **NewOp) |
bool | Epetra_ML_readaztecvector (char *filename, Epetra_MultiVector &Vector, Epetra_Map &map, Epetra_Comm &comm, int ivec) |
bool | Epetra_ML_readvariableblocks (char *filename, Epetra_Map &map, Epetra_Comm &comm, int **blocks, int **block_pde) |
bool | Epetra_ML_writegidviz (char *filename, int label, Epetra_MultiVector &vector, int ivec, Epetra_Map &map, Epetra_Comm &comm) |
void | ML_BreakForDebugger (const Epetra_Comm &comm) |
Stops the code, waiting for a debugger to attach. More... | |
Interface to the Trilinos package Anasazi.
void Epetra_CrsMatrix_Wrap_ML_Operator | ( | ML_Operator * | A, |
const Epetra_Comm & | Comm, | ||
const Epetra_Map & | RowMap, | ||
Epetra_CrsMatrix ** | Result, | ||
Epetra_DataAccess | CV = ::View , |
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int | base = 0 |
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) |
Wraps a ML_Operator into a Epetra_CrsMatrix.
This is a somewhat cheap wrap in that the pointers get dumped into the Epetra_CrsMatrix.
int EpetraMatrix2MLMatrix | ( | ML * | ml_handle, |
int | level, | ||
Epetra_RowMatrix * | Amat | ||
) |
Wraps an Epetra_RowMatrix into an ML_Operators.
This function creates an ML_Operator that is based on the input Epetra_RowMatrix. This is a "cheap" wrap in the sense that only function and pointers are created. Data is still coded as an Epetra_RowMatrix.
void ML_BreakForDebugger | ( | const Epetra_Comm & | comm | ) |
Stops the code, waiting for a debugger to attach.
BreakForDebugger() is useful when the user wants to attach to the running process(es). This is a very easy task for serial runs – just run gdb. Parallel runs may result more problematic. In this case, one can proceed as follows:
mpirun
-np
4
ml_example.exe
)Referenced by ML_Epetra::MultiLevelPreconditioner::ComputePreconditioner().
int ML_Epetra_comm_wrapper | ( | double | vec[], |
void * | data | ||
) |
Update vec's ghost node via communication.
Update vec's ghost node via communication. Note: the length of vec is given by N_local + N_ghost where Amat was created via AZ_matrix_create(N_local)
; and a 'getrow' function was supplied via AZ_set_MATFREE_getrow(Amat,,,,N_ghost,)
.
vec | Vector containing data. On output, ghost values are updated. |
data | points to user's data containing matrix values. and communication information. |
Referenced by ML_Epetra::MultiLevelPreconditioner::ComputePreconditioner().
int ML_Epetra_getrow | ( | ML_Operator * | data, |
int | N_requested_rows, | ||
int | requested_rows[], | ||
int | allocated_space, | ||
int | columns[], | ||
double | values[], | ||
int | row_lengths[] | ||
) |
Getrow function for matrix of type Epetra_RowMatrix.
Supply local matrix (without ghost node columns) for rows given by requested_rows[0 ... N_requested_rows-1]. Return this information in 'row_lengths, columns, values'. If there is not enough space to complete this operation, return 0. Otherwise, return 1.
data | (In) Points to user's data containing matrix values. |
N_requested_rows | (In) Number of rows for which nonzero are to be returned. |
requested_rows | (In) Requested_rows[0...N_requested_rows-1] give the row indices of the rows for which nonzero values are returned. |
row_lengths | (Out) Row_lengths[i] is the number of nonzeros in the row 'requested_rows[i]' |
columns,values | (Out) Columns[k] and values[k] contains the column number and value of a matrix nonzero where all nonzeros for requested_rows[i] appear before requested_rows[i+1]'s nonzeros. NOTE: Arrays are of size 'allocated_space'. |
allocated_space | (In) Indicates the space available in 'columns' and 'values' for storing nonzeros. If more space is needed, return 0. |
Referenced by ML_Epetra::MultiLevelPreconditioner::ComputePreconditioner().
int ML_Epetra_matvec | ( | ML_Operator * | data, |
int | in, | ||
double * | p, | ||
int | out, | ||
double * | ap | ||
) |
Matrix-vector function for Epetra matrices.
This is the ML matrix-vector wrap for Epetra matrices.
Referenced by ML_Epetra::MultiLevelPreconditioner::ComputePreconditioner().
int ML_Operator2EpetraCrsMatrix | ( | ML_Operator * | Ke, |
Epetra_CrsMatrix *& | CrsMatrix, | ||
int & | MaxNumNonzeros, | ||
bool | CheckNonzeroRow, | ||
double & | , | ||
int | base = 0 , |
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bool | verbose = false |
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) |
Converts an ML_Operator into an Epetra_CrsMatrix.
This function creates a new Epetra_CrsMatrix, and inserts all the nonzero elements of the ML_Operator in it. This is an expensive conversion, in the sense that the Epetra_RowMatrix is a copy of the input ML_Operator.
Referenced by ML_Epetra::MultiLevelPreconditioner::MultiLevelPreconditioner().
int ML_Operator_WrapEpetraCrsMatrix | ( | Epetra_CrsMatrix * | A, |
ML_Operator * | newMatrix, | ||
bool | verbose = false |
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) |
Wraps an Epetra_CrsMatrix into an ML_Operator, for the given level.
This is an ultra cheap wrap in that I wrap the pointers that come out of Epetra's ExtractCrsDataPointers function.
You need to have remapped the Epetra Matrix to include all the columns before this routine gets called or else this won't work in parallel.
OptimizeStorage() must be called on the routines for the light wrap to be used. Otherwise, the routine calls ML_Operator_WrapEpetraMatrix as a fallback.
int ML_Operator_WrapEpetraMatrix | ( | Epetra_RowMatrix * | A, |
ML_Operator * | Result | ||
) |
Wraps an Epetra_RowMatrix into an ML_Operators, for the given level.
This function creates an ML_Operator that is based on the input Epetra_RowMatrix. This is a "cheap" wrap in the sense that only function and pointers are created. Data is still coded as an Epetra_RowMatrix. The ML_Operator is set in the specified level of the hierarchy.
Referenced by ML_Epetra::MultiLevelPreconditioner::ComputePreconditioner(), MLAPI::Operator::Reshape(), and MLAPI::LoadBalanceOperator::Reshape().