Hi Dave, > That's probably not a good idea. Have you read about NFS in the romio > README? It's old, but as far as I know, it's still relevant for NFS3. > Maybe Rob Latham will see this and be able to comment on NFS4. No, are you referring to the file openmpi-1.8.7/ompi/mca/io/romio/romio/README? The only hint they give is that they suggest to use the “noac” option, which according to the manpages should not affect file contents but rather file attributes only (if I understand it correctly). Or do you think it would still be worth trying? By the way, we are using NFSv3.
> It seems to me that building for NFS by default is a mistake. Can you tell me the correct flags I need to provide at configure-time? Or where I can find more information about that (there does not seem to be anything about configure flags in the above-mentioned README). Also, as Gilles (see other mail in thread) suggested, I am not sure whether we use romio or ompio, but I do not know how to find out. Michael
