How to interpret the result from the matlabpool parallel processing

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Zhida
Zhida il 30 Ago 2014
Modificato: Matt J il 31 Ago 2014
In order to understand the matlabpool parallel processing, I tried a simple example.
spmd %the statement from the Parallel computing toolbox
% Run all the statements in parallel
if labindex==1
a=2
end
if labindex==2
b=3
end
a+b
end
The expected result is supposed to be 5, but in reality there is a error:
An UndefinedFunction error was thrown on the workers for 'a'. This may be because the file containing 'a' is not accessible on the workers. Specify the required files for this parallel pool using the command: addAttachedFiles(pool, ...). See the documentation for parpool for more details. Undefined function or variable "a".
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Matt J
Matt J il 31 Ago 2014
Modificato: Matt J il 31 Ago 2014
Maybe this is what you want?
spmd
if labindex==1
A=2;
end
if labindex==2
A=3;
end
end
result= A{1}+A{2}

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