General :: Simultaneously Execute 8 Instances Of A Program Until All Input Files Are Processed?

I have a machine with 8 cores. I have a directory of input files that I need to process using a non-parallelized program. I would like to write a script that works its way through a list of commands executing 8 commans (i.e., instances of this program; each with specific flags having to do with the current input file) until the list of commands has been exhausted. Is there an easy way to do this?

Code:

hamstrsearch_local-hmmer3.pl -protein -refspec=lotgi_2713 -hmmset=lophotrochozoa_hmmer3 -sequence_file=Aplysia_californica.fas -taxon=ACAL