Allreduce

Syntax
allreduce[operation]

Semantics
Similar to the reduce type, but the reduction will be performed on each process and the result is also available to all.

Example
function void main { var x:Int::allocated[multiple[]]; var p;   par p from 0 to 3 { (x::allreduce["min"]):=p; }; };

In this case all processes will perform the reduction on p and all processes will have the minimum value of p placed into their copy of x.

Since: Version 0.41b