rocsparse_inverse_permutation Interface Reference

• hipfort_rocsparse
• rocsparse_inverse_permutation

Public Member Functions | List of all members

hipfort_rocsparse::rocsparse_inverse_permutation Interface Reference

Inverse a permutation vector. More...

Public Member Functions
integer(kind(rocsparse_status_success)) function	rocsparse_inverse_permutation_ (handle, n, p, q, base)

Detailed Description

Inverse a permutation vector.

rocsparse_inverse_permutation computes

for(i = 0; i < n; ++i)

{

q[p[i]- base] = i + base;

}

Note

This function is non-blocking and executed asynchronously with respect to the host. It can return before the actual computation has finished.

This routine supports execution in a hipGraph context.

Parameters

[in]	handle	- handle to the rocSPARSE library context queue.
[in]	n	- size of the permutation vector p.
[in]	p	- array of n integers containing the permutation vector to inverse.
[out]	q	- array of n integers containing the invsrse of the permutation vector.
[in]	base	- rocsparse_index_base_zero or rocsparse_index_base_one.

Return values

rocsparse_status_success	the operation completed successfully.
rocsparse_status_invalid_handle	the library context was not initialized.
rocsparse_status_invalid_size	n is invalid.
rocsparse_status_invalid_pointer	p pointer is invalid or q pointer is invalid.
rocsparse_status_invalid_value	base is invalid.

Member Function/Subroutine Documentation

◆ rocsparse_inverse_permutation_()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_inverse_permutation::rocsparse_inverse_permutation_	(	type(c_ptr), value	handle,
		integer(c_int), value	n,
		type(c_ptr), value	p,
		type(c_ptr), value	q,
		integer(kind(rocsparse_index_base_zero)), value	base
	)

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

• hipfort_rocsparse.F90