> Blast on RH 7.2 I've never tried this before, but this is what you can do -- 1. patch the Linux kernel This approach may be harder, but this will add check- pointing support in the OS, that means you can check- point all applications without recompiling. 2. use the checkpoint library when you build blast, you need to link against the special library, so that you program can react to checkpoint "order" from SGE. You can get more info about checkpointing from-- http://www.checkpointing.org/ Then you can use the checkpointing interface in SGE to control the action needed to integrate your application with SGE checkpoint handling. -Ron __________________________________________________ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com