Wierd Files

We are running Cloverleaf 5.5 Rev1 on AIX 5.3.  We were running a stress test on our test box, and after the ADT process crashed, I noticed three types of strange new files in the $HCIROOT directory.  These files can be categorized as:

1.  heapdump.YYYYMMDD.NNNN.NNNN.phd

2.  SnapNNNN.YYYYMMDD.NNNN.NNNN.trc

3.  javacore.YYYYMMDD.NNNN.NNNN.txt

Can anyone tell me what these files are?

Can anyone tell me how to read the .phd or .trc files?

Thanks,

Bob       😕