rocsparse_axpby Interface Reference#
hipfort_rocsparse::rocsparse_axpby Interface Reference
Scale a sparse vector and add it to a scaled dense vector. More...
Public Member Functions | |
| integer(kind(rocsparse_status_success)) function | rocsparse_axpby_ (handle, alpha, x, beta, y) |
Detailed Description
Scale a sparse vector and add it to a scaled dense vector.
rocsparse_axpby multiplies the sparse vector x with scalar \alpha and adds the result to the dense vector y that is multiplied with scalar \beta, such that
y := \alpha \cdot x + \beta \cdot y
for(i = 0; i < nnz; ++i)
{
y[x_ind[i]] = alpha * x_val[i] + beta * y[x_ind[i]]
}
- Note
- This function is non blocking and executed asynchronously with respect to the host. It may return before the actual computation has finished.
- Parameters
-
[in] handle handle to the rocsparse library context queue. [in] alpha scalar \alpha. [in] x sparse matrix descriptor. [in] beta scalar \beta. [in,out] y dense matrix descriptor.
- Return values
-
rocsparse_status_success the operation completed successfully. rocsparse_status_invalid_handle the library context was not initialized. rocsparse_status_invalid_pointer alpha,x,betaorypointer is invalid.
Member Function/Subroutine Documentation
◆ rocsparse_axpby_()
| integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_axpby::rocsparse_axpby_ | ( | type(c_ptr), value | handle, |
| type(c_ptr), value | alpha, | ||
| type(c_ptr), value | x, | ||
| type(c_ptr), value | beta, | ||
| type(c_ptr), value | y | ||
| ) |
The documentation for this interface was generated from the following file: