HDF5 minimal example

hdf5.cpp

@@ -14,7 +14,7 @@
 #include <vector>
 
 
-const hsize_t CHUNK_SIZE = 314;
+//const hsize_t CHUNK_SIZE = 314;
 
 int main(int argc, char** argv)
 {
@@ -22,6 +22,9 @@ int main(int argc, char** argv)
   for (int i = 0; i < argc; ++i)
         std::cout << argv[i] << "\n";
   int data_length=std::atoi(argv[1]);
+  int num_extends=std::atoi(argv[2]);
+  hsize_t CHUNK_SIZE=std::atoi(argv[3]);
+
   int comm_size, comm_rank;
   assert(MPI_SUCCESS == MPI_Comm_size(MPI_COMM_WORLD, &comm_size));
   assert(MPI_SUCCESS == MPI_Comm_rank(MPI_COMM_WORLD, &comm_rank));
@@ -74,7 +77,7 @@ int main(int argc, char** argv)
 
   // extend
   hsize_t new_size=size;
-  for (int k=0; k<30;++k)
+  for (int k=0; k<num_extends;++k)
   {
   std::vector<int> v2(data_length, comm_rank+(k+1)*100);
   hsize_t dimsext[]={v2.size()};