char halofile[] = "cdm100e.h2.sdf";
char datafile[] = "/pfs-temp/msw/save/cdm100e.256m.0650";
char outfile[] = "/ufs4/johns/cdm100e.halos/h";
float tmax = 10.;
char Msg_turn_on[20] = "mpmy_gather.c";
