core: configure memory system on Blue Gene/Q
core: configure memory system on Blue Gene/Q

Heap usage:

Before:
Distribute vertices 13845397504 / 17163091968
Distribute arcs 15820914688 / 17163091968

After:
Distribute vertices 11727929344 / 17163091968
Distribute arcs 13173444608 / 17163091968

Link: https://github.com/GeneAssembly/biosal/issues/828
Link: https://gist.githubusercontent.com/sebhtml/5ba50e2a292ff80d4fb5/raw
Cc: Hal Finkel <76a8e82c3bdc78a1f9490a34857cdee8b1b06a45@anl.gov>
Signed-off-by: Sébastien Boisvert <1a4d2e25eb5ba040b6ad5779a730a1a8a0ff9bc5@anl.gov>

GeneAssembly/biosal,sebhtml/biosal,sebhtml/biosal,GeneAssembly/biosal,GeneAssembly/biosal,GeneAssembly/biosal,sebhtml/biosal,sebhtml/biosal,GeneAssembly/biosal,sebhtml/biosal,sebhtml/biosal,GeneAssembly/biosal