2-e atomic ==> 80-100GB of memory
2-e fully transformed ===> 17GB
tilesize = 15
(tilesize)^4 => 0.5 MB
(tilesize)^6  => 91 MB

attilesize = 40
(attilesize)^4 => 2.5 MB

The following line is needed to get this bad boy to run on chinook
unsetenv MA_USE_ARMCI_MEM

