From 723095fb3767b16ccc837acf67674c9249fa2efc Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@inria.fr>
Date: Tue, 24 Mar 2015 16:27:34 +0000
Subject: [PATCH] Push flushed data to main memory when we have time to
---
runtime/starpu/codelets/codelet_dataflush.c | 28 ++++++++++++++++++---
1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/runtime/starpu/codelets/codelet_dataflush.c b/runtime/starpu/codelets/codelet_dataflush.c
index 8f9115237..3f366f696 100644
--- a/runtime/starpu/codelets/codelet_dataflush.c
+++ b/runtime/starpu/codelets/codelet_dataflush.c
@@ -4,7 +4,7 @@
* of Tennessee Research Foundation.
* All rights reserved.
* @copyright (c) 2012-2014 Inria. All rights reserved.
- * @copyright (c) 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.
+ * @copyright (c) 2012-2015 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.
*
**/
@@ -26,6 +26,19 @@
**/
#include "runtime/starpu/include/morse_starpu.h"
+#ifdef CHAMELEON_USE_STARPU_IDLE_PREFETCH
+static void data_flush(void *handle)
+{
+ starpu_data_idle_prefetch_on_node(handle, STARPU_MAIN_RAM, 1);
+ starpu_data_release_on_node(handle, -1);
+}
+#else
+static void data_release(void *handle)
+{
+ starpu_data_release(handle);
+}
+#endif
+
void MORSE_TASK_dataflush(MORSE_option_t *options,
MORSE_desc_t *A, int Am, int An)
{
@@ -36,15 +49,24 @@ void MORSE_TASK_dataflush(MORSE_option_t *options,
* compute the handle address in starpu. We have to be careful with this if
* something similar happen in Quark.
*/
-#if defined(CHAMELEON_USE_MPI)
{
starpu_data_handle_t *ptrtile = (starpu_data_handle_t*)(A->schedopt);
ptrtile += ((int64_t)(A->lmt) * (int64_t)An + (int64_t)Am);
if (*ptrtile != NULL)
+ {
+#if defined(CHAMELEON_USE_MPI)
starpu_mpi_cache_flush(MPI_COMM_WORLD, *ptrtile);
- }
#endif
+
+ /* Push data to main memory when we have time to */
+#ifdef CHAMELEON_USE_STARPU_IDLE_PREFETCH
+ starpu_data_acquire_on_node_cb(*ptrtile, -1, STARPU_R, data_flush, *ptrtile);
+#else
+ starpu_data_acquire_cb(*ptrtile, STARPU_R, data_release, *ptrtile);
+#endif
+ }
+ }
}
void MORSE_TASK_dataflush_all()
--
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