Hi everyone ! I have to submit you a question, I write a little code that does and MPI_Comm_spawn_multiple on a specific set of node. The node where to run on are specified using the "host" attribute of the MPI_Info object. That attribute is filled with the string get from MPI_Get_processor_name.
Is this the correct way of working ? I have a strange behavior when I use alias in the /etc/hosts file. (I run jobs in a linux cluster, with CentOS 5). If I use the alias in the hostfile the spawn process throws me an error; instead the spawning process (run with the same hostfile) runs correctly. It seems that is necessary, when using the spawn function with INFO object, to run the spawning process with a hostfile filled with the "real" and complete hostname. Or I have to use a different function to get the host name? Thank you very much, Federico
