Crash in running the SEQUENCE_SRCH

Dears:

When I run below program, it will be crash.

INCLUDE SET OUTPUT_CONTROL = 1 1 1 1 1 SET ATOM_FILES_DIRECTORY = '/usr/local/lib/pdb' SET OUTPUT = 'SHORT' # 'LONG' SET SIGNIF_CUTOFF = 8 3 SET SEARCH_RANDOMIZATIONS = 10 SET STOP_ON_ERROR = 2 CALL ROUTINE = 'sequence_srch', SEGFILE = 'ny10.chn', SEQUENCE = 'ny10'

I want to use this program to get the alignment and using the alignment to get the template sequence and get the model by homology modelling. The ny10.chn is one chain protein with 68 a.a. , and I set the ATOM_FILES_DIRECTORY is the all PDB files in my server. This program will be crash after abour the 45 min. I don't know what's wrong. My server is RedHat Linux 7.1 with PIII 1G cpu and 512Mb ram.

Your friendly, Jack Wang