jiajuncao

@MikeDacre It seems that you're using one process on one node for the job, and no MPI is involved. In this case, calling dmtcp_launch from the SLURM script should work.

This change seems to make Unix domain socket a special case by setting an env var. If we want TCP sockets and Unix sockets to coexist, then we might have...

LG. It turns out this behavior is in POSIX: http://pubs.opengroup.org/onlinepubs/009695399/functions/mmap.html ```The mmap() function can be used to map a region of memory that is larger than the current size of...