Re: Money/oomph
Macho flops/£ and achieved flops/£ are very different things, especially once software development and maintenance costs are factored in, and also electricity bills. But the honest truth is for this project the vast majority of users didn't need or want GPGPUs to do their science, and in many cases GPU versions of the applications just don't exist, so early on a decision was made to be purely CPU based - the machine is there to do science, and if it can't do the science the user base needs it doesn't matter how many macho flops it can do. As a result I can't answer your question as we never did that calculation.
Biting the hand that feeds IT
