disable load balancer because it is not real-time

Link: https://github.com/GeneAssembly/biosal/issues/421
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
do initial placement with round robin on script

Link: https://github.com/GeneAssembly/biosal/issues/422
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>