simplifications

[simgrid.git] / src / simix / smx_context.cpp

diff --git a/src/simix/smx_context.cpp b/src/simix/smx_context.cpp
index 4fb8c47..d07d747 100644 (file)
--- a/src/simix/smx_context.cpp
+++ b/src/simix/smx_context.cpp
@@ -5,23 +5,12 @@
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
-#include <cerrno>
-#include <cstring>
-
-#include <utility>
-#include <string>
-
-#include <xbt/config.hpp>
-#include <xbt/log.h>
-#include <xbt/range.hpp>
-#include <xbt/sysdep.h>
-
 #include "simgrid/modelchecker.h"
-#include "simgrid/sg_config.hpp"
-#include "smx_private.hpp"
 #include "src/internal_config.h"
-#include "xbt/log.h"
-#include "xbt/xbt_os_thread.h"
+#include "src/simix/smx_private.hpp"
+#include "xbt/config.hpp"
+
+#include <thread>
 
 #ifdef _WIN32
 #include <windows.h>
@@ -259,8 +248,8 @@ int SIMIX_context_get_nthreads() {
  */
 void SIMIX_context_set_nthreads(int nb_threads) {
   if (nb_threads<=0) {
-     nb_threads = xbt_os_get_numcores();
-     XBT_INFO("Auto-setting contexts/nthreads to %d",nb_threads);
+    nb_threads = std::thread::hardware_concurrency();
+    XBT_INFO("Auto-setting contexts/nthreads to %d", nb_threads);
   }
 #if !HAVE_THREAD_CONTEXTS
   xbt_assert(nb_threads == 1, "Parallel runs are impossible when the pthreads are missing.");