fix: logging of OpenMP threads in main (CURA-3330)

src/FffPolygonGenerator.cpp

@@ -32,17 +32,6 @@ namespace cura
 
 bool FffPolygonGenerator::generateAreas(SliceDataStorage& storage, MeshGroup* meshgroup, TimeKeeper& timeKeeper)
 {
-#pragma omp parallel
-    {
-#pragma omp master
-        {
-#ifdef _OPENMP
-            log("OpenMP enabled, number of threads used: %u\n", omp_get_num_threads());
-#else
-            log("OpenMP disabled\n");
-#endif
-        }
-    }
     if (!sliceModel(meshgroup, timeKeeper, storage)) 
     {
         return false;

src/main.cpp

@@ -20,6 +20,8 @@
 
 #include "settings/SettingsToGV.h"
 
+#include <omp.h> // omp_get_num_threads
+
 namespace cura
 {
     
@@ -328,7 +330,19 @@ int main(int argc, char **argv)
         print_usage();
         exit(1);
     }
-    
+
+#pragma omp parallel
+    {
+#pragma omp master
+        {
+#ifdef _OPENMP
+            log("OpenMP multithreading enabled, likely number of threads to be used: %u\n", omp_get_num_threads());
+#else
+            log("OpenMP multithreading disabled\n");
+#endif
+        }
+    }
+
     if (stringcasecompare(argv[1], "connect") == 0)
     {
         connect(argc, argv);