Ilya recently discussed the need for simple access to distributed in memory data structures across partitions. I created a ticket along with a proposal for achieving this generically at a platform level a while back.
https://malhar.atlassian.net/browse/APEX-119 This proposal would enable the ability to retrieve and write multiple values to a map that is stored across partitions within the same window, even if the values being retrieved and written are in different partitions. Please check it out and provide feedback. Thanks, Tim
