Add test case from

Francesco Parisen Toldin
refs #122

test/Jamfile.v2

@@ -1,4 +1,4 @@
-# Support for the Message Passing Interface (MPI)
+># Support for the Message Passing Interface (MPI)
 #
 # (C) Copyright 2005, 2006 Trustees of Indiana University
 # (C) Copyright 2005 Douglas Gregor
@@ -52,5 +52,6 @@ test-suite mpi
   [ mpi-test sendrecv_vector : : : 2 ]
   # Intel MPI 2018 and older are axtected to fail:
   [ mpi-test non_blocking_any_source : : : 2 17 ]
+  [ mpi-test buf_size : : : 1 ]
   ;
 }

test/buf_size.cpp

@@ -0,0 +1,35 @@
+#include <iostream>
+#include <vector>
+#include <boost/serialization/vector.hpp>
+#include <boost/mpi/collectives.hpp>
+
+struct huge {
+  std::vector<unsigned char> data;
+  huge() : data(2ull << 30ull, 0) { }
+  
+  template <class Archive>
+  void serialize(Archive& ar, const unsigned int version)
+  {
+    ar & data;
+  }
+};
+
+int main()
+{
+  boost::mpi::environment env;
+  boost::mpi::communicator world;
+  
+  huge a{};
+  
+  std::cout << world.rank() << " huge created "  << std::endl;
+  world.barrier();
+  
+  if (world.rank() == 0) {
+      std::vector<huge> all;
+      boost::mpi::gather(world, a, all, 0);
+  } else  {
+    boost::mpi::gather(world, a, 0);
+  }
+  
+  return 0;
+}