Storing aggregated metrics from previous rounds

[the-nishant]

In an aggregation function, if we compute the square of the average gradient on the aggregator and want to use it in next round, how do we add it to the db_iterator?

[sarthakpati]

Hi @the-nishant,

Thank you for interest in the FeTS Challenge! For this answer, I am pinging @brandon-edwards @psfoley @alexey-gruzdev

[psfoley]

Hi @the-nishant, currently there isn't a great way to add custom information to the db_iterator from within the aggregation function. This is something we would like to support though. I can't promise we can implement a workaround for the current competition, but the FeTS organizing team will talk internally about it and get back to you