We have an RS/6000 model 550 which is used primarily as a batch processor for solving finite element analysis problems. The jobs are single-threaded through this machine 24 hours a day, 7 days a week. During a normal working day, this machine may be used interactively by one or two users, but at night and on weekends it only runs the finite element solver. We track the machine usage regularly and most nights the solver process gets 95-99% of the cpu. My question/problem: I installed the AFS client software on this machine and started the afsd's. For several nights we watched the machine usage. We noticed that with AFS running the finite element solver process was only able to use a maximum of 60% of the cpu. This greatly slows down these long-running jobs and, obviously, we get fewer jobs through the system. I expected AFS to take a small amount of the cpu, but I didn't expect it to take 35%! Is there something I am doing wrong? Or are there things I can do to tune AFS for this machine? By the way, the solver job does NOT read or write to AFS volumes, all I/O from this process is to local disk. Thanks, Hope Goering John Deere Product Engineering Center (319) 292-8626 [EMAIL PROTECTED]
