The Taoiseach has conceded that the Northern Ireland Assembly and the Executive cannot be reformed before the summer.
Speaking following his return from Prague, he said: "I would hope that people would indicate movement even if that did not take place until after the summer."
Mr Ahern will meet Mr Adams on Monday next in an encounter that could be particularly bad-tempered following the Independent Monitoring Commission's report. "We need now to be working even if doesn't take effect until after the summer. I'd like it to take effect far quicker," Mr Ahern commented.
"I don't say this out of any annoyance, but there is no point in people giving us their agenda, saying, 'Implement that'. I am not mentioning any party. . . Those kinds of meetings are a waste of time."
In another development it has emerged that the review of the Belfast Agreement will have to be suspended in early May until the June elections are finished.
Calling for "a spirit of co-operation", Mr Ahern said "useful work" had been done last year by the governments and parties last April and October. "We have not made much progress, sadly, since then."
Mr Ahern pointedly rejected the Sinn Féin leader's charge that Dublin had been responsible for cancelling meetings next week in London.
"We did think about having proximity talks last week, but it was never cancelled. They were never confirmed," he said.