Running two MATLAB programs at the same time

2 次查看（过去 30 天）
Diego Soler Polo
Diego Soler Polo 2017-10-16
评论： NGOC TAM LAM 2019-10-6
Hi, I have a function in Matlab which depends on an input N. I need to run function(2),function(3),function(4),function(5) and perhaps also try other values of N. Each of these runs takes about two hours. I could run one after the other, but it would be much more efficient if I could just run them at the same time. Each run is independent of the other, so this should be doable, right?. I want to do the same one does when one runs a script in bash with nohup ./script.sh &, so you can send other scripts. How can I do this in Matlab?
Thanks

请先登录，再回答此问题。

采纳的回答

KSSV
KSSV 2017-10-16
funcs1 = {@fun1, @fun2} ; % let fun1, fun2 be two functions
arguments = {inp1,inp2 ;inp1,inp2} ; % write the inputs of each function
solutions = cell(1,2); % initialize the solution
% use of parfor
parfor ii = 1:2
solutions1{ii}=funcs1{ii}(arguments1{ii,:});
end
M = solutions1{1} ; N = solutions1{2} ; % assign the results
  6 个评论
显示 4更早的评论
Walter Roberson
Walter Roberson 2019-10-4
Your functions do not return any value but you try to assign their lack of value to solutions variable.
NGOC TAM LAM
NGOC TAM LAM 2019-10-6
Thanks @Walter Roberson. Now I got the right answer. It should be return value for each function. But in the case of without the output value, how can I run it?

请先登录，再进行评论。

更多回答（1 个）

Walter Roberson
Walter Roberson 2017-10-16
You can use the Parallel Computing Toolbox, with batch() or parfeval()
Note: unless you configure specially, each worker would have access to one physical core. That can be a problem if your routines do a lot of mathematical calculations with large arrays: such calls are normally sent to an optimized library that automatically uses multiple threads. If this applies to your program, then running in parallel can end up taking longer than running individually.

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by