Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

Contents

mkl_graph_vector_get_sparse

Exports a sparse representation of a graph vector.

Syntax

mkl_graph_status_t
mkl_graph_vector_get_sparse (mkl_graph_vector_t
v
,
int64_t *
dim
,
int64_t *
nnz
,
void **
indices
,
mkl_graph_type_t *
indices_type
,
void **
values
,
mkl_graph_type_t *
values_type
);
Include Files
  • mkl_graph.h
Description
The
mkl_graph_vector_get_sparse
 routine exports the sparse representation of a graph vector. All output arguments are optional and will not be used if NULL pointers are passed. For
indices
 and
values
 the type of the elements can be obtained from a corresponding parameter of type
mkl_graph_type_t
.
The routine
mkl_graph_vector_get_sparse
 does not change the ownership of the data. In particular, you should not directly deallocate the returned pointers. A call to
mkl_graph_vector_destroy
 will deallocate any data allocated by
Intel® oneAPI Math Kernel Library
.
If only information about the number of rows or the number of columns is needed,
mkl_graph_vector_get_property
 can be used instead of
mkl_graph_vector_get_sparse
.
Input Parameters
v
A graph vector from which data are retrieved.
Output Parameters
dim
Dimension of the vector. Ignored if NULL is passed.
nnz
Number of non-zero entries in the vector. Ignored if NULL is passed.
indices
A pointer to an array which contains zero-based indices for the non-zero entries in the vector
v
. Type of the array elements can be deduced from
indices_type
. Ignored if NULL.
indices_type
Type of the elements of the
indices
 array. Refer to Graph API Glossary for a list of possible options. Ignored if NULL is passed.
values
A pointer to an array which contains values for the nonzero entries in the vector
v
. The type of the array elements can be deduced from
values_type
. Ignored if NULL.
values_type
Type of the elements of the
values
 array. Refer to Graph API Glossary for a list of possible options. Ignored if NULL is passed.
Return Values
The function returns a value indicating whether the operation was successful or not and why. Refer to Graph API Glossary for a list of possible options.
Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.
Notice revision #20201201

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.