Use deeper but much smaller hash tables

src/common/htable32.h

@@ -23,7 +23,7 @@
 #include <stdio.h>
 #include <assert.h>
 
-#define _STARPU_HTBL32_NODE_SIZE	16
+#define _STARPU_HTBL32_NODE_SIZE	8
 
 /* Hierarchical table: all nodes have a 2^16 arity . */
 /* Note: this struct is used in include/starpu_perfmodel.h */

src/core/dependencies/htable.h

@@ -1,6 +1,6 @@
 /* StarPU --- Runtime system for heterogeneous multicore architectures.
  *
- * Copyright (C) 2009-2011  Université de Bordeaux 1
+ * Copyright (C) 2009-2012  Université de Bordeaux 1
  * Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
  *
  * StarPU is free software; you can redistribute it and/or modify
@@ -28,7 +28,7 @@
 #include <assert.h>
 #include <core/dependencies/tags.h>
 
-#define _STARPU_HTBL_NODE_SIZE	16
+#define _STARPU_HTBL_NODE_SIZE	8
 
 struct _starpu_htbl_node
 {