I am currently invoking an ABAQUS (A finite element analysis package) analysis through perl using the command -
system("/usr/local/bin/tcsh -c 'source /eng/local/lib/source/use -quiet abaqus; /eng/tools/abaqus/6.3/Commands/abaqus job=$input_file'"); where $input_file has a name like 'file.inp' This analysis takes around 1 minute to complete until which i stall the script using sleep(60). I now wish to invoke 3 such analyses at the same time on different $input_file files. Kindly give your suggestions. Thanks, Amit =-=-=-=-= Never argue with a fool, people might not know the difference. - One of Murphy's Laws -=-=-=-=- Amit Sudhir Phatak [http://www.buffalo.edu/~asphatak]