Hello
> One idea comes to mind is whether the two nodes are on the same > subnet? If they are not on the same subnet I think there is a bug in > which the TCP BTL will recuse itself from communications between the > two nodes.
you are right - subnets are different, but routes set up correctly and everything like ping, ssh etc. are working OK between them
But it isn't a routing problem but how the tcp btl in Open MPI decides which interface the nodes can communicate with (completely out of the hands of the TCP stack and lower).
Do you know when it can be fixed in official OpenMPI? Is patch available or something? Thanks! Alexander Shabarshin
