Function cusparseCreateBlockedEll 

pub unsafe extern "C" fn cusparseCreateBlockedEll(
    spMatDescr: *mut cusparseSpMatDescr_t,
    rows: i64,
    cols: i64,
    ellBlockSize: i64,
    ellCols: i64,
    ellColInd: *mut c_void,
    ellValue: *mut c_void,
    ellIdxType: cusparseIndexType_t,
    idxBase: cusparseIndexBase_t,
    valueType: cudaDataType,
) -> cusparseStatus_t

This function initializes the sparse matrix descriptor spMatDescr for the Blocked-Ellpack (ELL) format.

Blocked-ELL Column indices (ellColInd) are in the range [0, cols / ellBlockSize -1]. The array can contain -1 values for indicating empty blocks.

Parameters

• spMatDescr: Sparse matrix descriptor.
• rows: Number of rows of the sparse matrix.
• cols: Number of columns of the sparse matrix.
• ellBlockSize: Size of the ELL-Block.
• ellCols: Actual number of columns of the Blocked-Ellpack format (ellValue columns).
• ellColInd: Blocked-ELL Column indices. Array with [ellCols / ellBlockSize][rows / ellBlockSize] elements.
• ellValue: Values of the sparse matrix. Array with rows * ellCols elements.
• ellIdxType: Data type of ellColInd.
• idxBase: Index base of ellColInd.
• valueType: Data type of ellValue.