collapse: collapse

In kazaam: Tools for Tall Distributed Matrices

Description

Collapse a shaq into a regular matrix.

Usage

collapse(x)

Arguments

x

A shaq.

Details

Only rank 0 will own the matrix on return.

Value

A regular matrix (rank 0) or NULL (everyone else).

Communication

Short answer: quite a bit. Each local submatrix has to be sent to rank 0.

Examples

## Not run: 
library(kazaam)
dx = ranshaq(runif, 10, 3)

x = collapse(dx)
comm.print(x)

finalize()

## End(Not run)

kazaam documentation built on May 2, 2019, 8:55 a.m.