This ticket is to find total number of servers v/s total number of files required to reach deterministic file hashing. As example we have seen with 4096 thread runs of mpi_io over a 24server setup leads to file hashing of large number of files to same node perhaps in 400's rather than 150-170 against each server. Whereas 8192 threads leads us to 330-350 thread ratio per server, which is perfect. Much research is required to understand how well with lesser and larger files we can reach deterministic hashing.
Please reopen this in the req bugzilla