bulk::gather_all

template <typename T>
bulk::coarray<T> gather_all(bulk::world& world, T value)

This function takes a value on each processor, and gathers all of these in the local images of a coarray.

Template parameters

• T - the value type

Parameters

• world - the world in which we gather
• value - the distributed variable

Returns

• A coarray, whose local images consists of p elements with on the s-th position the value passed by the s-th processor.

Complexity and cost

• Cost: sizeof(T) * p * g + l