On Jan 22, 2007, at 9:48 AM, Ralph H Castain wrote:




On 1/22/07 9:39 AM, "Greg Watson" <gwat...@lanl.gov> wrote:

I tried adding '-mca btl ^sm -mca mpi_preconnect_all 1' to the mpirun
command line but it still fails with identical error messages.

I don't understand the issue with allocating nodes under bproc. Older
versions of OMPI have always just queried bproc for the nodes that
have permissions set so I can execute on them. I've never had to
allocate any nodes using a hostfile or any other mechanism. Are you
saying that this no longer works?

Turned out that mode of operation was a "bug" that caused all kinds of
problems in production environments - that's been fixed for quite some time. So, yes - you do have to get an official "allocation" of some kind. Even the
changes I mentioned wouldn't remove that requirement in the way you
describe.

BTW, there's no requirement for a bproc system to employ a job scheduler. So in my view OMPI is "broken" for bproc systems if it imposes such a requirement.

Greg

Reply via email to