piatlicki@gmail.com Enable interoperability with MPI Build UPC Runtime/GASNet with Process-SHared Memory enabled Select GASNet's FAST segments (default), for the fastest remote access with a possible cost in max shared memory size Select GASNet's LARGE segments, for the largest possible shared memory size, at a possible cost in remote access time Support running over smp loopback (no network) Use the more efficient 'packed' shared pointer representation Use the 'struct' shared pointer representation Enable 'symmetric' pointer variant where available (64-bit smp and shmem) Support running over UDP