Speed up for loops for arrays

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Mantas Vaitonis
Mantas Vaitonis 2018-11-9
编辑： madhan ravi 2018-11-9
Hello, Maybe someone could help me to speedup this type of for loop? I did try parfor, I did try to think of way using GPU, but it does not work with indexing.
clear;
a=7811200001;
d=1083355908;
c=zeros(1083355908,1)
parfor i = 1:d
c(i,1)=a+i;
end

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madhan ravi
madhan ravi 2018-11-9
编辑：madhan ravi 2018-11-9
a=7811200001;
d=1083355908;
c=a+(1:d);
c=(a+1):(a+d); %edited after jan's comment
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Jan
Jan 2018-11-9
Another hint: In a+(1:d) you create the double vector 1:d at first and then add a to each element. It is more efficient to omit the addition and create vector directly:
(a+1):(a+d)
madhan ravi
madhan ravi 2018-11-9
编辑：madhan ravi 2018-11-9
Selbverständlich , danke schön @Jan

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