codistributor1d.defaultPartition

Default partition for codistributed array

Syntax

P = codistributor1d.defaultPartition(n)


Description

P = codistributor1d.defaultPartition(n) is a vector with sum(P) = n and length(P) = spmdSize. The first rem(n,spmdSize) elements of P are equal to ceil(n/spmdSize) and the remaining elements are equal to floor(n/spmdSize). This function is the basis for the default distribution of codistributed arrays.

Examples

If spmdSize = 4, the following code returns the vector [3 3 2 2] on all workers:

spmd
    P = codistributor1d.defaultPartition(10)
end

Version History

Introduced in R2009b