DPCL 3.4.4 for AIX is available for download. This release fixes the
1736659 - DPCL hang after processing create and terminate for parallel
application on Power 4 systems with AIX bos.mp 18.104.22.168 installed.
If this fix is not installed, you can work around the problem by manually
killing the dpcld (and sesmgr PE Benchmarker process) owned by your userid