rocsparse_gather Interface Reference

rocsparse_gather Interface Reference#

HIPFORT API 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)

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]	handle	handle to the rocsparse library context queue.
[in]	y	dense vector \(y\).
[out]	x	sparse vector \(x\).

Return values

rocsparse_status_success	the operation completed successfully.
rocsparse_status_invalid_handle	the library context was not initialized.
rocsparse_status_invalid_pointer	`x` or `y` pointer is invalid.

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: