X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/97b5c30c5882418937e25117a0111c4e71a2689c..4180937029f34127d89e8c8c7ca4645a96f28d3d:/src/mc/mc_config.cpp

diff --git a/src/mc/mc_config.cpp b/src/mc/mc_config.cpp
index 6dd2b9f5e6..1ab68c0c8d 100644
--- a/src/mc/mc_config.cpp
+++ b/src/mc/mc_config.cpp
@@ -9,6 +9,8 @@
 #include "src/mc/mc_safety.hpp"
 #endif
 
+#include <climits>
+
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_config, mc, "Configuration of the Model Checker");
 
 #if SIMGRID_HAVE_MC
@@ -71,6 +73,21 @@ simgrid::config::Flag<bool> _sg_mc_send_determinism{
       _mc_cfg_cb_check("value to enable/disable the detection of send-determinism in the communications schemes");
     }};
 
+static simgrid::config::Flag<std::string> _sg_mc_buffering{
+    "smpi/buffering", "Buffering semantic to use for MPI (only used in MC)", "zero", [](const std::string& value) {
+      try {
+        if (value == "zero")
+          simgrid::config::set_value<int>("smpi/send-is-detached-thresh", 0);
+        else if (value == "infty")
+          simgrid::config::set_value<int>("smpi/send-is-detached-thresh", INT_MAX);
+        else
+          xbt_die("configuration option 'smpi/buffering' can only take 'zero' or 'infty' as a value");
+      } catch (std::out_of_range& e) {
+        /* If the 'smpi/send-is-detached-thresh' does not exist, we are in the MCer process, where this option makes no
+         * sense, so just ignore it */
+      }
+    }};
+
 static simgrid::config::Flag<std::string> _sg_mc_reduce{
     "model-check/reduction", "Specify the kind of exploration reduction (either none or DPOR)", "dpor",
     [](const std::string& value) {