projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| c63539ff ML |
1 | .. |
| 2 | Copyright 1988-2022 Free Software Foundation, Inc. | |
| 3 | This is part of the GCC manual. | |
| 4 | For copying conditions, see the copyright.rst file. | |
| 5 | ||
| 6 | .. _acc_copyout: | |
| 7 | ||
| 8 | acc_copyout -- Copy device memory to host memory. | |
| 9 | ************************************************* | |
| 10 | ||
| 11 | Description | |
| 12 | This function copies mapped device memory to host memory which is specified | |
| 13 | by host address :samp:`{a}` for a length :samp:`{len}` bytes in C/C++. | |
| 14 | ||
| 15 | In Fortran, two (2) forms are supported. In the first form, :samp:`{a}` specifies | |
| 16 | a contiguous array section. The second form :samp:`{a}` specifies a variable or | |
| 17 | array element and :samp:`{len}` specifies the length in bytes. | |
| 18 | ||
| 19 | C/C++: | |
| 20 | .. list-table:: | |
| 21 | ||
| 22 | * - *Prototype*: | |
| 23 | - ``acc_copyout(h_void *a, size_t len);`` | |
| 24 | * - *Prototype*: | |
| 25 | - ``acc_copyout_async(h_void *a, size_t len, int async);`` | |
| 26 | * - *Prototype*: | |
| 27 | - ``acc_copyout_finalize(h_void *a, size_t len);`` | |
| 28 | * - *Prototype*: | |
| 29 | - ``acc_copyout_finalize_async(h_void *a, size_t len, int async);`` | |
| 30 | ||
| 31 | Fortran: | |
| 32 | .. list-table:: | |
| 33 | ||
| 34 | * - *Interface*: | |
| 35 | - ``subroutine acc_copyout(a)`` | |
| 36 | * - | |
| 37 | - ``type, dimension(:[,:]...) :: a`` | |
| 38 | * - *Interface*: | |
| 39 | - ``subroutine acc_copyout(a, len)`` | |
| 40 | * - | |
| 41 | - ``type, dimension(:[,:]...) :: a`` | |
| 42 | * - | |
| 43 | - ``integer len`` | |
| 44 | * - *Interface*: | |
| 45 | - ``subroutine acc_copyout_async(a, async)`` | |
| 46 | * - | |
| 47 | - ``type, dimension(:[,:]...) :: a`` | |
| 48 | * - | |
| 49 | - ``integer(acc_handle_kind) :: async`` | |
| 50 | * - *Interface*: | |
| 51 | - ``subroutine acc_copyout_async(a, len, async)`` | |
| 52 | * - | |
| 53 | - ``type, dimension(:[,:]...) :: a`` | |
| 54 | * - | |
| 55 | - ``integer len`` | |
| 56 | * - | |
| 57 | - ``integer(acc_handle_kind) :: async`` | |
| 58 | * - *Interface*: | |
| 59 | - ``subroutine acc_copyout_finalize(a)`` | |
| 60 | * - | |
| 61 | - ``type, dimension(:[,:]...) :: a`` | |
| 62 | * - *Interface*: | |
| 63 | - ``subroutine acc_copyout_finalize(a, len)`` | |
| 64 | * - | |
| 65 | - ``type, dimension(:[,:]...) :: a`` | |
| 66 | * - | |
| 67 | - ``integer len`` | |
| 68 | * - *Interface*: | |
| 69 | - ``subroutine acc_copyout_finalize_async(a, async)`` | |
| 70 | * - | |
| 71 | - ``type, dimension(:[,:]...) :: a`` | |
| 72 | * - | |
| 73 | - ``integer(acc_handle_kind) :: async`` | |
| 74 | * - *Interface*: | |
| 75 | - ``subroutine acc_copyout_finalize_async(a, len, async)`` | |
| 76 | * - | |
| 77 | - ``type, dimension(:[,:]...) :: a`` | |
| 78 | * - | |
| 79 | - ``integer len`` | |
| 80 | * - | |
| 81 | - ``integer(acc_handle_kind) :: async`` | |
| 82 | ||
| 83 | Reference: | |
| 84 | :openacc:`2.6`, section | |
| 3ed1b4ce | 85 | 3.2.22. |