All batch hosts have folders created to store data while working with batch-job. There is an environment variable TMPDIR which is being set each time on job start and is evaluated to a directory used by that job to store its data.

AFS system info (/afs) is available, but scratch directories are not, those that are common  for all the interactive hosts lxpubXX.jinr.ru , XX=01,02,03,04,05

Therefore the scratch directory data (/scrc/u/) should be copied to batch hosts.
The sequence of command in a pbs_ script file should look like this:
cd $TMPDIR

scp   lxpub01://scrc/u/$USER/progs/myprog myprog

scp   lxpub01://scrc/u/$USER/mydata/file.in file.in

./myprog < file.in >file.out

scp  file.out lxpub01://scrc/u/$USER/mydata/file.out

To handle the data located in dCache storage system one has to use the remote data access tools.
See ‘dCache Instructions‘