From a7b39c2fe1f2521f6cbb653b2c722bdf6c3ce605 Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Thu, 16 Feb 2017 11:04:48 +0100
Subject: [PATCH] Check the tiles sizes for OOC
---
runtime/starpu/control/runtime_descriptor.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/runtime/starpu/control/runtime_descriptor.c b/runtime/starpu/control/runtime_descriptor.c
index dc7d6ba8e..62b84a752 100644
--- a/runtime/starpu/control/runtime_descriptor.c
+++ b/runtime/starpu/control/runtime_descriptor.c
@@ -22,6 +22,7 @@
*
**/
#include <stdlib.h>
+#include <unistd.h>
#include "runtime/starpu/include/morse_starpu.h"
#if defined(CHAMELEON_USE_MPI)
@@ -118,6 +119,21 @@ void RUNTIME_desc_create( MORSE_desc_t *desc )
}
}
#endif
+ if (desc->ooc) {
+ int lastmm = desc->lm - (desc->lmt-1) * desc->mb;
+ int lastnn = desc->ln - (desc->lnt-1) * desc->nb;
+ int64_t eltsze = MORSE_Element_Size(desc->dtyp);
+ int pagesize = getpagesize();
+
+ if ((desc->mb * desc->nb * eltsze) % pagesize != 0
+ || (lastmm * desc->nb * eltsze) % pagesize != 0
+ || (desc->mb * lastnn * eltsze) % pagesize != 0
+ || (lastmm * lastnn * eltsze) % pagesize != 0)
+ {
+ morse_error("RUNTIME_desc_create", "Matrix and tile size not suitable for out-of-core: all tiles have to be multiples of 4096. Tip : choose 'n' and 'nb' as both multiples of 32.");
+ return;
+ }
+ }
#if defined(CHAMELEON_USE_MPI)
/*
--
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