User`s guide

isreplicated

11-147

isreplicated

True for replicated array

Syntax

tf = isreplicated(X)

Description

tf = isreplicated(X) returns true for a replicated array, or false otherwise. For a

description of a replicated array, see “Nondistributed Versus Distributed Arrays” on page

5-2. isreplicated also returns true for a Composite X if all its elements are identical.

Examples

With an open parallel pool,

spmd

A = magic(3);

t = isreplicated(A) % returns t = true

B = magic(labindex);

f = isreplicated(B) % returns f = false

end

More About

Tips

isreplicated(X) requires checking for equality of the array X across all workers. This

might require extensive communication and time. isreplicated is most useful for

debugging or error checking small arrays. A codistributed array is not replicated.