Accumulate-esque Node Type #48
Description
An accumulation node type could be added to represent tasks that can be implemented using an accumulate construct, such as sums or products. This node type could be used to schedule a task with the accumulation function whenever a result becomes available instead of waiting for all summands of a sum to be available first. This would greatly reduce the number of variables that need to be kept in memory at the same time and remove the need for function calls with a large number of arguments, which can slow down compilation.