how can I write a parallel code in Matlab?
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sasa
el 1 de Ag. de 2014
Respondida: Edric Ellis
el 4 de Ag. de 2014
hi every one, can you help me to write a program with parfor and compare the time consumed in comparing with for? The code is: matlabpool open local 7 tic parfor i = 1:100000 k=i end toc matlabpool close Elapsed time is 1.846197 seconds.
tic,for i = 1:100000 k=i end toc Elapsed time is 0.000640 seconds.
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Dima Lisin
el 1 de Ag. de 2014
The reason you are seeing this result is because your loop does not do anything. If you make each iteration of your loop do substantial work, you will see a speedup.
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Edric Ellis
el 4 de Ag. de 2014
Ideally, you should not open and close the pool for timing purposes - it's intended that you keep the pool open.
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