# HPL_pdlaprnt man page

HPL_pdlaprnt — Print a distributed matrix A.

## Synopsis

**#include "hpl.h"****void HPL_pdlaprnt( const HPL_T_grid *** *GRID*, **const int** *M*, **const int** *N*, **const int** *NB*, **double *** *A*, **const int** *LDA*, **const int** *IAROW*, **const int** *IACOL*, **const char *** *CMATNM* **);**

## Description

**HPL_pdlaprnt** prints to standard error a distributed matrix A. The local pieces of A are sent to the process of coordinates (0,0) in the grid and then printed.

## Arguments

- GRID (local input) const HPL_T_grid *
- On entry, GRID points to the data structure containing the process grid information.
- M (global input) const int
- On entry, M specifies the number of rows of the coefficient matrix A. M must be at least zero.
- N (global input) const int
- On entry, N specifies the number of columns of the coefficient matrix A. N must be at least zero.
- NB (global input) const int
- On entry, NB specifies the blocking factor used to partition and distribute the matrix. NB must be larger than one.
- A (local input) double *
- On entry, A points to an array of dimension (LDA,LocQ(N)). This array contains the coefficient matrix to be printed.
- LDA (local input) const int
- On entry, LDA specifies the leading dimension of the array A. LDA must be at least max(1,LocP(M)).
- IAROW (global input) const int
- On entry, IAROW specifies the row process coordinate owning the first row of A. IAROW must be larger than or equal to zero and less than NPROW.
- IACOL (global input) const int
- On entry, IACOL specifies the column process coordinate owning the first column of A. IACOL must be larger than or equal to zero and less than NPCOL.
- CMATNM (global input) const char *
- On entry, CMATNM is the name of the matrix to be printed.

## See Also

**HPL_fprintf** (3).