Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 3/31/2023
Public

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mkl_sparse_?_create_coo

Creates a handle for a matrix in COO format.

Syntax

stat = mkl_sparse_s_create_coo (A, indexing, rows, cols, nnz, row_indx, col_indx, values)

stat = mkl_sparse_d_create_coo (A, indexing, rows, cols, nnz, row_indx, col_indx, values)

stat = mkl_sparse_c_create_coo (A, indexing, rows, cols, nnz, row_indx, col_indx, values)

stat = mkl_sparse_z_create_coo (A, indexing, rows, cols, nnz, row_indx, col_indx, values)

Include Files
  • mkl_spblas.f90
Description

The mkl_sparse_?_create_coo routine creates a handle for an m-by-k matrix A in COO format.

NOTE:

The input arrays provided are left unchanged except for the call to mkl_sparse_order, which performs ordering of column indexes of the matrix. To avoid any changes to the input data, use mkl_sparse_copy.

Input Parameters
<!-- -->indexing

sparse_index_base_t.

Indicates how input arrays are indexed.

SPARSE_INDEX_BASE_ZERO

Zero-based (C-style) indexing: indices start at 0.

SPARSE_INDEX_BASE_ONE

One-based (Fortran-style) indexing: indices start at 1.

rows

C_INT.

Number of rows of matrix A.

cols

C_INT.

Number of columns of matrix A.

nnz

C_INT.

Specifies the number of non-zero elements of the matrix A.

Refer to nnz description in Coordinate Format for more details.

row_indx

C_INT.

Array of length nnz, containing the row indices for each non-zero element of matrix A.

Refer to rows array description in Coordinate Format for more details.

col_indx

C_INT.

Array of length nnz, containing the column indices for each non-zero element of matrix A.

Refer to columns array description in Coordinate Format for more details.

values

C_FLOAT for mkl_sparse_s_create_coo

C_DOUBLE for mkl_sparse_d_create_coo

C_FLOAT_COMPLEX for mkl_sparse_c_create_coo

C_DOUBLE_COMPLEX for mkl_sparse_z_create_coo

Array of length nnz, containing the non-zero elements of matrix A in arbitrary order.

Refer to values array description in Coordinate Format for more details.

Output Parameters
A

SPARSE_MATRIX_T.

Handle containing internal data.

stat

INTEGER

Value indicating whether the operation was successful or not, and why:

SPARSE_STATUS_SUCCESS

The operation was successful.

SPARSE_STATUS_NOT_INITIALIZED

The routine encountered an empty handle or matrix array.

SPARSE_STATUS_ALLOC_FAILED

Internal memory allocation failed.

SPARSE_STATUS_INVALID_VALUE

The input parameters contain an invalid value.

SPARSE_STATUS_EXECUTION_FAILED

Execution failed.

SPARSE_STATUS_INTERNAL_ERROR

An error in algorithm implementation occurred.

SPARSE_STATUS_NOT_SUPPORTED

The requested operation is not supported.