It appears that latest php version 5.1.6-20.el5_2.1 under RHEL / CentOS Linux v5.2 has made some major changes. As a result choort jail setup using previous instructions no longer works. PHP is crashing with segmentation fault errors. So I had to trace php errors using strace command.
Condor is a specialized workload management system for compute-intensive jobs. It provides a job queuing mechanism, scheduling policy, priority scheme, and resource monitoring and management.