Call writeInit with global grid and properties.

Previously, the call was made after the grid was distributed.
This means that each process wrote it, but only with his cells
active which was just a part of the whole domain.

With this commit we make the writeInit call before distributing the
grid and make sure that only one process calls it.

opm/autodiff/SimulatorFullyImplicitBlackoilMultiSegment_impl.hpp

@@ -72,9 +72,6 @@ namespace Opm
             adaptiveTimeStepping.reset( new AdaptiveTimeStepping( param_, terminal_output_ ) );
         }
 
-        // init output writer
-        output_writer_.writeInit( geo_.simProps(grid_) , geo_.nonCartesianConnections( ) );
-
         std::string restorefilename = param_.getDefault("restorefile", std::string("") );
         if( ! restorefilename.empty() )
         {