rocsparse_gather Interface Reference

rocsparse_gather Interface Reference#

HIPFORT API Reference: hipfort_rocsparse::rocsparse_gather Interface Reference
hipfort_rocsparse::rocsparse_gather Interface Reference

Gather elements from a dense vector and store them into a sparse vector. More...

Public Member Functions

integer(kind(rocsparse_status_success)) function rocsparse_gather_ (handle, y, x)
 

Detailed Description

Gather elements from a dense vector and store them into a sparse vector.

rocsparse_gather gathers the elements from the dense vector \(y\) and stores them in the sparse vector \(x\).

for(i = 0; i < nnz; ++i)
{
x_val[i] = 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]handlehandle to the rocsparse library context queue.
[in]ydense vector \(y\).
[out]xsparse vector \(x\).
Return values
rocsparse_status_successthe operation completed successfully.
rocsparse_status_invalid_handlethe library context was not initialized.
rocsparse_status_invalid_pointerx or y pointer is invalid.

Member Function/Subroutine Documentation

◆ rocsparse_gather_()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_gather::rocsparse_gather_ ( type(c_ptr), value  handle,
type(c_ptr), value  y,
type(c_ptr), value  x 
)

The documentation for this interface was generated from the following file: