5.22 acc_copyout – Copy device memory to host memory.

Description

This function copies mapped device memory to host memory which is specified by host address a for a length len bytes in C/C++.

In Fortran, two (2) forms are supported. In the first form, a specifies a contiguous array section. The second form a specifies a variable or array element and len specifies the length in bytes.

C/C++:

Prototype:	acc_copyout(h_void *a, size_t len);
Prototype:	acc_copyout_async(h_void *a, size_t len, int async);
Prototype:	acc_copyout_finalize(h_void *a, size_t len);
Prototype:	acc_copyout_finalize_async(h_void *a, size_t len, int async);

Fortran:

Interface:	subroutine acc_copyout(a)
	type, dimension(:[,:]...) :: a
Interface:	subroutine acc_copyout(a, len)
	type, dimension(:[,:]...) :: a
	integer len
Interface:	subroutine acc_copyout_async(a, async)
	type, dimension(:[,:]...) :: a
	integer(acc_handle_kind) :: async
Interface:	subroutine acc_copyout_async(a, len, async)
	type, dimension(:[,:]...) :: a
	integer len
	integer(acc_handle_kind) :: async
Interface:	subroutine acc_copyout_finalize(a)
	type, dimension(:[,:]...) :: a
Interface:	subroutine acc_copyout_finalize(a, len)
	type, dimension(:[,:]...) :: a
	integer len
Interface:	subroutine acc_copyout_finalize_async(a, async)
	type, dimension(:[,:]...) :: a
	integer(acc_handle_kind) :: async
Interface:	subroutine acc_copyout_finalize_async(a, len, async)
	type, dimension(:[,:]...) :: a
	integer len
	integer(acc_handle_kind) :: async

Reference:

OpenACC specification v2.6, section 3.2.22.