• How should I spend my dollars to get the computing capability and capacity I need to deal with my problem set?
• Which metrics should I use to evaluate machines proposed by vendors?
• What promises should I make to my boss about our next machine's performance and ease of programming?
• How long before our best programmers get top performance from the machine? How long for our "pretty good" programmers?
• How can I state my requirements in ways that lead vendors to build the right machine?
• Does the fact that the Top-500 list has changed mean that we're making the wrong decisions?