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parallel for loop for list of vectors
6 posts by 2 authors  



Dupont 	

Aug 3


Dear Users,

I need a small hint to perform the following parallel for loop. I know that this work:

res = @parallel (hcat) for i=1:10    
    zeros(2)
endEnter code here...

but what I need is 

res = @parallel (hcat) for i=1:10    
    zeros(i)
end

Thank you for your help

Best regards,




 


Andre Bieler 	

Aug 4


this does not work as serial code either. the hcat needs vectors of same length.

 


Andre Bieler 	

Aug 4


Do you want something like this in the end?

res = [zeros(i) for i in 1:10]


 


Dupont 	

Aug 4


Yes !


res = [zeros(i) for i in 1:10]

would do for me. Also, if it simplifies things, the order does not matter.
 


Andre Bieler 	

Aug 4


you can do:

res = pmap(zeros, 1:10)

but probably you want to replace "zeros" with a more expensive function
to take advantage of the parallelism. 
 


Andre Bieler 	

Aug 4


pmap(zeros, 1:10)