diff options
Diffstat (limited to 'src/H5ACpkg.h')
| -rw-r--r-- | src/H5ACpkg.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/H5ACpkg.h b/src/H5ACpkg.h index 903eca3..e31f245 100644 --- a/src/H5ACpkg.h +++ b/src/H5ACpkg.h @@ -263,6 +263,18 @@ * contain the value 0 on all processes other than process 0. * It exists primarily for sanity checking. * + * write_done: In the parallel test bed, it is necessary to ensure that + * all writes to the server process from cache 0 complete + * before it enters the barrier call with the other caches. + * + * The write_done callback allows t_cache to do this without + * requiring an ACK on each write. Since these ACKs greatly + * increase the run time on some platforms, this is a + * significant optimization. + * + * This field must be set to NULL when the callback is not + * needed. + * ****************************************************************************/ #ifdef H5_HAVE_PARALLEL @@ -308,6 +320,8 @@ typedef struct H5AC_aux_t int32_t c_slist_len; + void (* write_done)(void); + } H5AC_aux_t; /* struct H5AC_aux_t */ #endif /* H5_HAVE_PARALLEL */ |