Multi-threading with .net framework

Question

Seyedfarid Ghahari 2017-3-8

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/328824-multi-threading-with-net-framework

评论： Guillaume 2017-3-8

When I run following code, I expect to see mixed printing from both functions. However, they run sequentially not in parallel. How can I change this code to force Matlab prints results from both functions together? Is there anyway without using Parallel computing?

NET.addAssembly(strcat(pwd,'\','NetDocDelegate.dll'));
divDel = NetDocDelegate.delInteger(@Run);
asyncRes{1} = divDel.BeginInvoke(1,[],[]);
if asyncRes{1}.IsCompleted == false
    asyncRes{2} = divDel.BeginInvoke(2,[],[]);
end;
function ret = Run(l)
    for i=1:100000
        display(strcat(num2str(i),'(',num2str(l),')'))
    end;
    ret = l;
end

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Answer 1

Guillaume 2017-3-8

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https://ww2.mathworks.cn/matlabcentral/answers/328824-multi-threading-with-net-framework#answer_257892

Matlab is single threaded. There is no way for both delegate to run simultaneously. You would indeed need the parallel toolbox to do something like that.

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Seyedfarid Ghahari 2017-3-8

编辑：Guillaume 2017-3-8

在 MATLAB Online 中打开

Indeed, I am trying to call and run a third party in parallel from Matlab (e.g., calling running several external softwares from matlab but not in series). I wrote this code:

NET.addAssembly(strcat(pwd,'\','NetDocDelegate.dll'));
global RunDel
RunDel = NetDocDelegate.delInteger(@Run);
parfor l=1:2;
    asyncRes = RunDel.BeginInvoke(l,[],[]);
end;
function ret = Run(l)
global Analyze
ret = Analyze{l}.RunAnalysis();
end

where "Analyze{}" is an object defined to run a specific software. It is an array, because I would like to open and run that software twice. I get "Cannot load an object of class 'delInteger'" error. If I put "RunDel = NetDocDelegate.delInteger(@Run);" inside the parfor loop I get this error: "MATLAB cannot determine whether "NetDocDelegate" refers to a function or variable". Do you have any comment?

Guillaume 2017-3-8

Sorry, I know nothing about the way the parallel toolbox works, so I'll just point you to this post (and the follow-ups) which may or may not help you.

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