add protection check against 0 masters or workers; spelling

optimizer/Comm/Splitter/ManyMasterSplit.h

@@ -120,6 +120,12 @@ private:
             MPI_Abort(getComm(), -1111);
         }
 
+        if(num_masters_ == 0 || num_coworkers_worker_ == 0) {
+            std::cout << "\033[01;31m" << "Need at least"
+                      << " 1 master and 1 coworker to run.. Aborting." << "\e[0m" << std::endl;
+            MPI_Abort(getComm(), -1111);
+        }
+
         if(static_cast<size_t>(num_procs_) < num_masters_ *
                                              (2 + num_coworkers_worker_)) {
             std::cout << "\033[01;31m" << "Need at least "

optimizer/Comm/Splitter/SplitStrategy.h

@@ -28,7 +28,7 @@ public:
         group_id_ = 0;
 
         if(num_procs_ < 3)
-            throw OptPilotException("SplitStrategy::SplitStartegy",
+            throw OptPilotException("SplitStrategy::SplitStrategy",
                                     "We need 3 or more cores to split!");
     }