Reduce disk calibration time

src/core/disk_ops/disk_leveldb.cpp

@@ -26,8 +26,9 @@
 #include <core/perfmodel/perfmodel.h>
 #include <datawizard/copy_driver.h>
 #include <datawizard/memory_manager.h>
+#include <starpu_parameters.h>
 
-#define NITER	64
+#define NITER	_STARPU_CALIBRATION_MINIMUM
 
 /* ------------------- use leveldb to write on disk -------------------  */
 

src/core/disk_ops/disk_stdio.c

@@ -26,12 +26,13 @@
 #include <core/perfmodel/perfmodel.h>
 #include <datawizard/copy_driver.h>
 #include <datawizard/memory_manager.h>
+#include <starpu_parameters.h>
 
 #ifdef STARPU_HAVE_WINDOWS
         #include <io.h>
 #endif
 
-#define NITER	64
+#define NITER	_STARPU_CALIBRATION_MINIMUM
 
 /* ------------------- use STDIO to write on disk -------------------  */
 

src/core/disk_ops/unistd/disk_unistd_global.c

@@ -33,12 +33,13 @@
 #include <core/disk_ops/unistd/disk_unistd_global.h>
 #include <datawizard/copy_driver.h>
 #include <datawizard/memory_manager.h>
+#include <starpu_parameters.h>
 
 #ifdef STARPU_HAVE_WINDOWS
         #include <io.h>
 #endif
 
-#define NITER	64
+#define NITER	_STARPU_CALIBRATION_MINIMUM
 
 #ifdef O_DIRECT
 #  define MEM_SIZE getpagesize()