Run dntmc failed with an error in Communication


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Problem Update
An update of the above problem:
     Running ended with this output information" utilscratchavail: eaf_open                 -44"
By tracing this output, I find this is an err whose code is in src/util/util_file_name.F and triggered when junk file can't be opened. So how can i do to solve it.
The following is the corresponding code about the err:
     1025  call util_file_name('junk',.true.,.true.,mine)
ierr=eaf_delete(mine)
ierr=eaf_open(mine, eaf_rw, fd)
if(ierr.ne.0) call errquit('utilscratchavail: eaf_open',ierr,
& DISK_ERR)
call ga_sync()
ierr = eaf_stat(mine, avail0, fstype)
Thanks Again!