What is a reduction operator? What conditions must be satisfied so that an operator can be a reduction operator?
An operator is a reduction operator if it satisfies the following conditions:
- The operator can reduce an array of elements into one scalar value
- The end result (the scalar value) is obtained through creating and computing partial tasks
What properties do reduction operators have that are equivalent to the required conditions?
The communicative and associative properties are considered to be equivalent to the requirements for a reduction operator.
What is the connection between reduction operators and concurrent programming?
Reduction operators require communicative and associative properties. Consequently, their sub-tasks have to be able to be processed independently, which makes concurrency and parallelism applicable.
What are some of the considerations...
