I am using tbb's concurrent hash maps and I am wondering if there is someway to find out the index of a key in the map.
So for example i declare my map like this
typedef tbb::concurrent_hash_map< openvdb::Coord, int, MyHashCompare> single_map;
where openvdb::Coord is a unique co-ordinate in the R3 /(3D)/[x,y,z] space.
Now i want to know after i have stored the co-ordinates in parallel along with a value (int) against each co-ordinate (say its weight for example) I wish to know what is the index. One way is to serially iterate over it and say store it as the first value in a vector of ints (instead of thevalue being a single int i can use a vector of ints).
Is there a way to find out the index of each key in parallel for example with a const_accessor
single_map trymap /populate the trymap in parallel using a tbb::parallel_for single_map::const_accessor sc; trymap.find(sc,some_key)
I wish to find the index of some_key in the trymap. Is it possible or should i make a mapping by serially going through the map using an iterator. I am not particularly good at TBB so please do not mind if my question sounds too naive or childish.
Thanks again for your time.