clsparseCsrMatrix Struct Reference

Structure to encapsulate sparse matrix data encoded in CSR form to clSPARSE API. More...

#include <clSPARSE-1x.h>

Public Attributes
void *	meta
CSR matrix data
clsparseIdx_t	num_rows
clsparseIdx_t	num_cols
clsparseIdx_t	num_nonzeros
OpenCL state
cl_mem	values
cl_mem	col_indices
cl_mem	row_pointer
void *	values
void *	col_indices
void *	row_pointer
Buffer offsets
clsparseIdx_t	off_values
clsparseIdx_t	off_col_indices
clsparseIdx_t	off_row_pointer

Detailed Description

Structure to encapsulate sparse matrix data encoded in CSR form to clSPARSE API.

Note

The indices stored are 0-based

It is the users responsibility to allocate/deallocate OpenCL buffers

Examples:

sample-cg.cpp, and sample-spmv.cpp.

Member Data Documentation

void* clsparseCsrMatrix::col_indices

column index for corresponding value of size num_nonzeros

cl_mem clsparseCsrMatrix::col_indices

column index for corresponding value of size num_nonzeros

Examples:

sample-cg.cpp, and sample-spmv.cpp.

void * clsparseCsrMatrix::meta

Pointer to a private structure that contains meta-information the library keeps on a csr-encoded sparse matrix

clsparseIdx_t clsparseCsrMatrix::num_cols

Number of columns this matrix has if viewed as dense

Examples:

sample-cg.cpp, and sample-spmv.cpp.

clsparseIdx_t clsparseCsrMatrix::num_nonzeros

Number of values in matrix that are non-zero

Examples:

sample-cg.cpp, and sample-spmv.cpp.

clsparseIdx_t clsparseCsrMatrix::num_rows

Number of rows this matrix has if viewed as dense

Examples:

sample-cg.cpp, and sample-spmv.cpp.

clsparseIdx_t clsparseCsrMatrix::off_col_indices

Given that cl_mem objects are opaque without pointer arithmetic, these offsets are added to the cl_mem locations on device to define beginning of the data in the cl_mem buffers

clsparseIdx_t clsparseCsrMatrix::off_row_pointer

Given that cl_mem objects are opaque without pointer arithmetic, these offsets are added to the cl_mem locations on device to define beginning of the data in the cl_mem buffers

clsparseIdx_t clsparseCsrMatrix::off_values

Given that cl_mem objects are opaque without pointer arithmetic, these offsets are added to the cl_mem locations on device to define beginning of the data in the cl_mem buffers

void* clsparseCsrMatrix::row_pointer

Invariant: row_pointer[i+1]-row_pointer[i] = number of values in row i

cl_mem clsparseCsrMatrix::row_pointer

Invariant: row_pointer[i+1]-row_pointer[i] = number of values in row i

Examples:

sample-cg.cpp, and sample-spmv.cpp.

void* clsparseCsrMatrix::values

non-zero values in sparse matrix of size num_nonzeros

cl_mem clsparseCsrMatrix::values

non-zero values in sparse matrix of size num_nonzeros

Examples:

sample-cg.cpp, and sample-spmv.cpp.

---

The documentation for this struct was generated from the following files:

• C:/src/github/clmathlibraries/clSPARSE/src/include/clSPARSE-1x.h
• C:/src/github/clmathlibraries/clSPARSE/src/include/clSPARSE-2x.h