User`s guide

6 Programming Overview

6-66

total = 0;

count = 0;

parfor ii = 1:N

% Get partition ii of the datastore.

subds = partition(ds,N,ii);

[localTotal,localCount] = sumAndCountArrivalDelay(subds);

total = total + localTotal;

count = count + localCount;

end

Now the MATLAB code calls this new function, so that the counting and summing of the

non-NAN values can occur in parallel loop iterations.

p = parpool('local',4);

reset(ds);

tic

[total,count] = parforSumAndCountArrivalDelay(ds)

parfortime = toc

mean = total/count

Starting parallel pool (parpool) using the 'local' profile ... connected to 4 workers.

Analyzing and transferring files to the workers ...done.

total =

17211680

count =

2417320

parfortime =

13.6401

mean =

7.1201