- Did you pre-allocate Aineq prior to the loop?
- Did you pre-allocate bineq prior to the loop?
Vectorizing interdependent nested 4-for loop
1 view (last 30 days)
Show older comments
How to speed up this piece of code? How to vectorise this code? Is no other way possible?
for i1=1:num_agents % for all i
for rows=1:num_tasks*num_parts-1 % for all m_i,n_i in E_i
for ell=1:gL-G(rows,rows+1,i1) % for all ell
for i2=1:num_agents
xtemp = clearer;
% half-sum 1st part
for s = ell:gL%-G(rows,rows+1,i1)
if mod(rows,num_tasks)~=0
xtemp(i1,ceil(rows/num_tasks),mod(rows,num_tasks),s) = 1;
elseif mod(rows,num_tasks)==0
xtemp(i1,ceil(rows/num_tasks),num_tasks,s) = 1;
end
end
% half-sum 2nd part
for s = 1:ell+G(rows,rows+1,i1)-1
if s <= gL
if mod(rows,num_tasks)~=0
xtemp(i2,ceil(rows/num_tasks),mod(rows,num_tasks)+1,s) = 1;
elseif mod(rows,num_tasks)==0
xtemp(i2,ceil(rows/num_tasks)+1,1,s) = 1;
end
end
end
xtemp = xtemp(:);
Aineq(counter,:) = xtemp';
bineq(counter) = 1;
counter = counter + 1;
end
end
end
end
0 Comments
Answers (1)
Rick Rosson
on 12 Jan 2015
2 Comments
See Also
Categories
Find more on Loops and Conditional Statements in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!