I've been trying to get OpenMPI to work on Amazon's EC2 but I've been
running into a communications problem. Here is the source (typical
Hello, World):
#include
#include "mpi.h"
int main(argc,argv)
int argc;
char *argv[];
{
int myid, numprocs;
MPI_Init(&argc,&argv);
MPI_Comm_size
Jeroen Kleijer wrote:
The stable branch (1.2.x) works perfectly but _only_ when the
communication channel between machines are in the same subnet.
(ethernet)
Since you don't have that much control over which subnet your machines
get in, OpenMPI has a tendency to fail in Amazon's EC2.
However, if
Jeroen Kleijer wrote:
However, if you're able to compile and use a version of the
development branch (1.3) you should be use compile and run the "hello
world" program without problems, regardless of the subnet they're in.
I installed 1.3rc2 and that seems to have done the trick.
On a side note
