Tunç Bahçecioğlu » std http://www.tuncbahcecioglu.com carpe omnium Tue, 26 Oct 2010 13:43:06 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 send std::string with mpi http://www.tuncbahcecioglu.com/posts/send-stdstring-with-mpi/ http://www.tuncbahcecioglu.com/posts/send-stdstring-with-mpi/#comments Sun, 02 Aug 2009 02:12:45 +0000 tunc http://www.tuncbahcecioglu.com/posts/send-stdstring-with-mpi/ The idea is to send the size of the string first and then allocate the storage on the reciever. Here is an example with broadcast.

string s = "before";
int size = 0;
if (myRank == 0)
{
   s = "after";
   size = s.size();
}
BroadCast(&size,1);
if (myRank != 0) s.resize(size);
BroadCast(s.data(),size);
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