Presentations from a number of the technology leaders now show the stretch goal for achieving a working exascale system has moved out to 2020. Most of them quickly add that 2022 is perhaps even more realistic.
Just to clarify for our readers, 2018 was never a guaranteed delivery date for an exascale system. While some companies have stated they will have an exascale system by 2018, that’s about as credible as saying “we can build an exascale system today if price and power consumption don’t matter.”? Well, they do matter.
2018 was a stretch goal. It was a target to rally the entire industry and to give the race a sense of urgency. It was chosen based on what some people believed was achievable – in the broadest sense of the word.