-add debug flag to CMAKELIST

-add documentation for MPIServer functions
-add anyMessagefrom function (untested)

CMakeLists.txt

@@ -8,7 +8,7 @@ Find_Package(SDL)
 SET(CMAKE_CXX_FLAGS_RELEASE "-march=core2 -O3 -mmmx -finline-functions -fopenmp -Wconversion")
 SET(CMAKE_C_FLAGS_RELEASE "-march=core2 -O3 -mmmx -finline-functions -fopenmp -Wconversion")
 SET(CMAKE_CXX_FLAGS_DEBUG "-march=core2 -gstabs+ -Wall -Wabi -Wconversion")
-SET(CMAKE_C_FLAGS_DEBUG "-march=core2 -O3 -mmmx -finline-functions -Wconversion")
+SET(CMAKE_C_FLAGS_DEBUG "-march=core2 -O3 -mmmx -finline-functions -Wconversion -gstabs+")
 SET(CMAKE_CXX_FLAGS_PROFILED "-O2 -march=core2 -pg -Wconversion")
 SET(CMAKE_C_FLAGS_PROFILED "-O3 -march=core2 -pg -Wconversion")
 

MPI_QMC_Master/MPIServer.h

@@ -92,7 +92,7 @@ public:
     */
     inline int checkActivity();
     /**
-    Constructor call. it needs argc and argv from the command line, to pass it on to MPI
+    Constructor call. It needs argc and argv from the command line, to pass it on to MPI
     @param argc argc as given from the main funtion
     @param argv argv as given from the main function
     */
@@ -118,7 +118,8 @@ public:
     */
     inline const Client& addClient();
     /**
-    this function removes a client(this event can't happen MPI)
+    This function removes a client(this event can't happen MPI)
+    @return It returns alwys zero right now...
     */
     inline int removeClient(const Client&);
     /**
@@ -131,17 +132,34 @@ public:
     */
     template <typename T>
     inline bool sendtoallclients(T);
+    /** This function enables checking for a message from a particular client.
+     * @param client The client for which to check.
+     * @return true if MPI_Probe finds some message, else false.
+     */
+    inline bool anyMessagefrom(const Client& client);
 private:
     bool juststarted;
     bool hasdata;
     int MPInrofclients;
     int alreadyaddedclients;
     vector<Client> clients;
-    MPI_Status status;
+    MPI_Status status;///< here we store the state of the MPI_Status variable. It enables fetching things like size.
     bool status_is_uptodate;
+    /** checks the status of the internal status variable
+    */
     void status_valid();
 };
 
+bool MPIServer::anyMessagefrom(const Client& client)
+{
+  bool retval;
+  MPI_Iprobe(client.id, MPI_ANY_TAG, MPI_COMM_WORLD, &retval, &status);
+  if (!retval) status_is_uptodate = false;
+    else
+        status_is_uptodate = true;
+  return retval;
+}
+
 void MPIServer::status_valid()
 {
     if (!status_is_uptodate) throw MPI_Error("[MPIServer] MPI_Status not up to date!!");
@@ -174,12 +192,12 @@ Client MPIServer::peekNextOriginator()
 
 bool MPIServer::datapending()
 {
-	int flag;
-	MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, &status);
-	if (!flag) status_is_uptodate = false;
-	else
-		status_is_uptodate = true;
-	return flag;
+    int flag;
+    MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, &status);
+    if (!flag) status_is_uptodate = false;
+    else
+        status_is_uptodate = true;
+    return flag;
 }
 
 bool MPIServer::clientringing()