I'm afraid "--mca plm rsh" is not going to work. James is using a Windows build, which doesn't have the rsh plm module.
There are only two plm modules for windows:
MCA plm: process (MCA ...
MCA plm: ccp (MCA ...
I think the binaries built by James contains only the process module, which is internaly using WMI. So there is no way to switch to ssh or rsh, because they are not built.
To use ssh, one has to build Open MPI source under Cygwin, using the auto-tools chain (the same as on Linux). Unfortunately, the CMake support in OMPI was only for the native windows build, it won't work under Cygwin.
On 2012-02-07 1:51 PM, George Bosilca wrote: