Move OpenMP cleanup to base Task destructor

Author: aobolensk

modules/core/task/include/task.hpp

@@ -11,6 +11,9 @@
 #include <iomanip>
 #include <iostream>
 #include <memory>
+#ifdef _OPENMP
+#include <omp.h>
+#endif
 #include <sstream>
 #include <stdexcept>
 #include <string>
@@ -177,6 +180,9 @@ class Task {
     } else {
       functions_order_.clear();
     }
+#ifdef _OPENMP
+    omp_pause_resource_all(omp_pause_hard);
+#endif
   }
 
  protected:

tasks/example_threads/omp/src/ops_omp.cpp

@@ -3,6 +3,7 @@
 #include <atomic>
 #include <numeric>
 #include <vector>
+#include <omp.h>
 
 #include "core/util/include/util.hpp"
 #include "example_threads/common/include/common.hpp"