You missed a crucial clue from your question - where are you assigning hx. I'm going to guess you have something like this:
spmd
hx = doSomething(); % assign hx
end
Outside the spmd block, hx is a Composite . What that means is that the contents of hx are left remaining on the workers, and only brought back to the client when you request them. You can get the value from worker 1 like this:
worker1_hx = hx{1};
% Now you can work with local data worker1_hx:
worker1_A0 = worker1_hx.Tis_pr(:);
all_hx = hx(:);
for idx = 1:numel(all_hx)
worker_hx = all_hx{idx};
worker_hx.Tis; % Access fields of one element
end
