Hello Chad, Thursday, January 19, 2006, 1:09:38 AM, you wrote: SC> parameter. The input file is over 1 million lines long. Any ideas? see at the BlockIO and FastIO libraries http://cryp.to/blockio/blockio-2004-10-10.tar.gz http://www.isi.edu/~hdaume/haskell/FastIO.tar.gz -- Best regards, Bulat mailto:bulatz at HotPOP.com