NAME

lis_matrix_set_value - assign the scalar value to the element of the matrix

SYNOPSIS

#include "lis.h"

LIS_INT lis_matrix_set_value(LIS_INT flag, LIS_INT i, LIS_INT j, LIS_SCALAR value, LIS_MATRIX A);

DESCRIPTION

Assign the scalar value to the (i, j)-th element of matrix A.

INPUT

flag

LIS_INS_VALUE: A[i, j] = value
LIS_ADD_VALUE: A[i, j] = A[i, j] + value
i: The row number of the matrix
j: The column number of the matrix
value: The scalar value to be assigned
A: The matrix

OUTPUT

A: The matrix

EXIT STATUS

The following exit values are returned:

0: The process is normally terminated
unspecified: An error occurred

NOTE

For the multiprocessing environment, the i-th row and the j-th column of the global matrix must be specified. The function lis_matrix_set_value stores the assigned value in a temporary internal format. Therefore, after lis_matrix_set_value is called, the function lis_matrix_assemble must be called.