User`s guide

11 Functions — Alphabetical List
11-102
n = 10;
spmd
C = codistributed(magic(n));
M = gather(C) % Gather all elements to all workers
end
S = gather(C) % Gather elements to client
Gather all of the elements of C onto worker 1, for operations that cannot be performed
across distributed arrays.
n = 10;
spmd
C = codistributed(magic(n));
out = gather(C,1);
if labindex == 1
% Characteristic sum for this magic square:
characteristicSum = sum(1:n^2)/n;
% Ensure that the diagonal sums are equal to the
% characteristic sum:
areDiagonalsEqual = isequal ...
(trace(out),trace(flipud(out)),characteristicSum)
end
end
Lab 1:
areDiagonalsEqual =
1
Gather all of the elements from a distributed array D onto the client.
n = 10;
D = distributed(magic(n)); % Distribute array to workers
M = gather(D) % Return array to client
Gather the results of a GPU operation to the MATLAB workspace.
G = gpuArray(rand(1024,1));
F = sqrt(G); % Input and output are both gpuArray
W = gather(G); % Return array to workspace
whos
Name Size Bytes Class
F 1024x1 108 gpuArray
G 1024x1 108 gpuArray