Some MUPIP commands require information contained in the global directory. Therefore, a process must have access to a valid global directory before using any MUPIP commands other than EXIT, INTRPT, JOURNAL, RESTORE, STOP and the -file option of any command that has that option.

The environment variable gtmgbldir specifies the active global directory.

A gtmgbldir value of mumps.gld tells MUPIP to look for a global directory file mumps.gld in the current directory. See the "Global Directory Editor" chapter for more information on the global directory.