multithreading - Nested Parallel While Loops -

i trying run 2 while loops in parallel purpose of data acquisition. program run "n" num_trials specific trial duration each trial.

during each trial, program collect data while keeping track of trial duration. example, first trial starts collecting data @ 1 seconds , stops @ 10 seconds. process repeat rest number of trials

how can run both while loops in parallel?

basically, want method break second while loop once specified trial duration complete?

thanks in advance.

count = 0; num_trials = 5; % number of trials = 5 trials trial_duration = 10; % trial duration = 10 seconds  global check  check = 0;  % number of trials = 1:num_trials      fprintf('starting trial %i\n', i);      t_start = tic;      % start counting , collecting data     while toc(t_start) < trial_duration          % data collection         while (check ~= 1)               count = count +1;         end      end      fprintf('ending trial %i\n', i); end 

have tried using single loop && ?

while (toc(t_start) < trial_duration) && (check ~= 1)          % data collection         count = count +1;  end