Fill structure in parallel loop

I have the following structure:

The company structure consist out of 3 fields

• old
• new
• feature

these 3 fields are also structures and consists out 11 fields

These 11 fields have dimensions of 45*60.

There are 45 companies. So each company is filling a line in each field from the old,new,feature.

These fields are filled now as follows:

for i = 1:amount

company = FillFields(company)

end

If i make it a parfor loop then this construction will not work.

But i don't now how to easily make it work with a parfor loop?

Thanks in advance!

Answer 1

[Edric Ellis]

The main constraint here is the parfor "sliced output" requirement. Basically you cannot directly update a single struct using parfor, but you can use parfor to assemble the fields separately, and then put them together into a struct afterwards. For example:

parfor i = 1:7
    name{i} = sprintf('name %d', i);
    value(i) = randi(10);
end
result = struct('name', {name}, 'value', {value})

result = struct with fields:
     name: {'name 1'  'name 2'  'name 3'  'name 4'  'name 5'  'name 6'  'name 7'}
    value: [6 4 7 2 5 10 3]