www.gusucode.com > distcomp 案例源码程序 matlab代码 > distcomp/ParallelPartitionExample.m
%% ParallelPartition % This example shows %% no pool to start % Copyright 2015 The MathWorks, Inc. delete(gcp('nocreate')); %% serial function % <include>sumAndCountArrivalDelay.m</include> %% Serial partition ds = datastore(repmat({'airlinesmall.csv'},20,1),'TreatAsMissing','NA'); ds.SelectedVariableNames = 'ArrDelay'; reset(ds); tic [total,count] = sumAndCountArrivalDelay(ds) sumtime = toc mean = total/count %% parfor function % <include>parforSumAndCountArrivalDelay.m</include> %% Automatic partitions p = parpool('local',4); reset(ds); tic [total,count] = parforSumAndCountArrivalDelay(ds) parfortime = toc mean = total/count %% spmd function % <include>spmdSumAndCountArrivalDelay.m</include> %% numlab partitions reset(ds); tic [total,count] = spmdSumAndCountArrivalDelay(ds) spmdtime = toc mean = total/count %% shut down pool delete(p);