You should be able to use parfor for it.
maxtrial = 100;
results = cell(maxtrial,1);
parfor trialnum = 1 : maxtrial
generate first variable
generate second variable
generate third variable
generate fourth variable
generate fifth variable
calculate outputs with those variables
results{K} = outputs;
end
If the result is a single numeric value then use a numeric array instead of a cell array.
