WLCG
Technology Evolution Insufficient
The evolution of the costs of compute, storage, and other key technologies becomes much less than anticipated, or is driven by markets rather than by technology.
We are unable to provide the needed level of resources with constrained budgets.
Ensure the core software of the experiments is as efficient as possible, also the experiments may need to prioritise their physics analysis programmes.
Ensure flexibility for both software and hardware choices. Software should optimize use of memory, CPU performance, I/O performance, etc. Computing models must optimize between hardware resources - CPU/storage/networks to minimize overall cost.
The evolution of "Moore's Law" over the past several decades, is no longer a good guide to the prediction of cost of resources. Several effects are in play: