mapmat.h File Reference

Declarations of the matrix type and his associated routines.
these routines are developed to handle sparse matrices. Typically, in the CMB Data Analysis context, it is especially developed handle pointing or unpointing matrices. Thus, the unpointing matrix A can be defined as a MIDAS_Mat. Operating with the pointing matrices can be done without redefining a new matrix. More...

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Data Structures
struct	Mat
	Matrix structure A* = (A0* | A1* | ... | Ap-1* ) More...

Functions
int	MatInit (Mat *A, int m, int nnz, int *indices, double *values, int flag#ifdef W_MPI, MPI_Comm comm#endif)
void	MatSetIndices (Mat *A, int m, int nnz, int *indices)
void	MatSetValues (Mat *A, int m, int nnz, double *values)
void	MatFree (Mat *A)
int	MatLocalShape (Mat *A, int sflag)
int	MatComShape (Mat *A, int flag, MPI_Comm comm)
int	MatVecProd (Mat *A, double *x, double *y, int pflag)
int	TrMatVecProd (Mat *A, double *y, double *x, int pflag)
int	TrMatVecProd_Naive (Mat *A, double *y, double *x, int pflag)
int	MatLoad (Mat *A, char *filename)
int	MatSave (Mat *A, char *filename)
int	MatInfo (Mat *A, int master, char *filename)
	Print information about a matrix.
int	greedyreduce (Mat *A, double *x)

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Detailed Description

Declarations of the matrix type and his associated routines.
these routines are developed to handle sparse matrices. Typically, in the CMB Data Analysis context, it is especially developed handle pointing or unpointing matrices. Thus, the unpointing matrix A can be defined as a MIDAS_Mat. Operating with the pointing matrices can be done without redefining a new matrix.

Author:

Pierre Cargemel

Date:

November 2011

Definition in file mapmat.h.

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Function Documentation

int greedyreduce	(	Mat *	A,
		double *	x
	)

Definition at line 610 of file mapmat.c.