forked from pool/mvapich2
Nicolas Morey
13e60bd8b4
- mrail-fix-incompatible-pointer-issues.patch - util-add-missing-include.patch - psm-add-missing-declaration.patch - Refresh 0001-Drop-real128.patch to work with patch -p0 - Switch to autopatch OBS-URL: https://build.opensuse.org/package/show/science:HPC/mvapich2?expand=0&rev=103
95 lines
3.5 KiB
Diff
95 lines
3.5 KiB
Diff
commit 68c4106b2a8d8fdb9ba4e2bab90e90e3392b6bbd
|
|
Author: Nicolas Morey <nmorey@suse.com>
|
|
Date: Thu Oct 26 12:39:20 2023 +0200
|
|
|
|
mvapich2: openpa: add memory barriers
|
|
|
|
Backport from openPA:
|
|
commit 28d602b620b5d7ec8ca1a7f3ad8ab27d439b1751
|
|
Author: Neil Fortner <nfortne2@hdfgroup.org>
|
|
Date: Wed Dec 19 13:14:57 2012 -0600
|
|
|
|
Add more memory barriers to LL/SC ABA tests. This should fix the recent errors
|
|
on POWER7.
|
|
|
|
Reviewed by goodell.
|
|
|
|
Signed-off-by: Nicolas Morey <nmorey@suse.com>
|
|
|
|
diff --git src/openpa/test/test_primitives.c src/openpa/test/test_primitives.c
|
|
index a83b95e00578..4533c643d581 100644
|
|
--- src/openpa/test/test_primitives.c
|
|
+++ src/openpa/test/test_primitives.c
|
|
@@ -3783,12 +3783,18 @@ static int threaded_llsc_int_aba_helper_0(llsc_int_aba_t *udata)
|
|
nerrors++;
|
|
} /* end if */
|
|
|
|
+ /* Make sure shared_val is initialized before passing point 0 */
|
|
+ OPA_write_barrier();
|
|
+
|
|
/* Point 0 */
|
|
OPA_store_int(&udata->pass_point_0, 1);
|
|
|
|
/* Wait until thread 1 passes point 1 */
|
|
while(!OPA_load_int(&udata->pass_point_1));
|
|
|
|
+ /* Make sure that change_val is loaded after passing point 1 */
|
|
+ OPA_read_barrier();
|
|
+
|
|
/* Store conditional 1 to the shared value */
|
|
if(OPA_SC_int(&udata->shared_val, 1)) {
|
|
/* SC succeeded, make sure that the shared value was not changed by
|
|
@@ -3870,12 +3876,12 @@ static void *threaded_llsc_int_aba_helper_1(void *_udata)
|
|
* of this test */
|
|
OPA_store_int(&udata->shared_val, 1);
|
|
OPA_store_int(&udata->shared_val, 0);
|
|
-
|
|
- /* Write barrier to make sure the shared value was actually updated
|
|
- * before we mark point 1 as passed */
|
|
- OPA_write_barrier();
|
|
} /* end if */
|
|
|
|
+ /* Write barrier to make sure the shared_val (if appropriate) and
|
|
+ * change_val are actually updated before we mark point 1 as passed */
|
|
+ OPA_write_barrier();
|
|
+
|
|
/* Point 1 */
|
|
OPA_store_int(&udata->pass_point_1, 1);
|
|
|
|
@@ -4012,12 +4018,18 @@ static int threaded_llsc_ptr_aba_helper_0(llsc_ptr_aba_t *udata)
|
|
nerrors++;
|
|
} /* end if */
|
|
|
|
+ /* Make sure shared_val is initialized before passing point 0 */
|
|
+ OPA_write_barrier();
|
|
+
|
|
/* Point 0 */
|
|
OPA_store_int(&udata->pass_point_0, 1);
|
|
|
|
/* Wait until thread 1 passes point 1 */
|
|
while(!OPA_load_int(&udata->pass_point_1));
|
|
|
|
+ /* Make sure that change_val is loaded after passing point 1 */
|
|
+ OPA_read_barrier();
|
|
+
|
|
/* Store conditional 1 to the shared value */
|
|
if(OPA_SC_ptr(&udata->shared_val, (void *) ((int *) 0 + 1))) {
|
|
/* SC succeeded, make sure that the shared value was not changed by
|
|
@@ -4099,12 +4111,12 @@ static void *threaded_llsc_ptr_aba_helper_1(void *_udata)
|
|
* of this test */
|
|
OPA_store_ptr(&udata->shared_val, (void *) ((int *) 0 + 1));
|
|
OPA_store_ptr(&udata->shared_val, (void *) 0);
|
|
-
|
|
- /* Write barrier to make sure the shared value was actually updated
|
|
- * before we mark point 1 as passed */
|
|
- OPA_write_barrier();
|
|
} /* end if */
|
|
|
|
+ /* Write barrier to make sure the shared_val (if appropriate) and
|
|
+ * change_val are actually updated before we mark point 1 as passed */
|
|
+ OPA_write_barrier();
|
|
+
|
|
/* Point 1 */
|
|
OPA_store_int(&udata->pass_point_1, 1);
|
|
|