canceljob  <jobID>  [<jobID> ...]

Cancels jobs whose Job IDs are given in the argument list (you can specify more than one job). You must own the jobs, of course.

Note: when cancelling an interactive job, please make sure that you kill all the processes as well (canceljob will not, unfortunately, take care of that for interactive jobs). If you know that all the processes running a program <progname> should be killed, a simple killall <progname> should do. Otherwise, please use selective kill -9 <pid> [pid...] using the output of
  ps auxww | grep <your username>
and make sure you kill the process (program) itself, not the bpsh running it - the bpsh will be killed automatically when the child process dies.