OpenMP and STL vector

Question

I\'ve got some code for which I\'d like to use OpenMP in the following way:

std::vector v(1000);
# pragma omp parallel for
for (int i = 0; i <          


        

Answer 1

Multiple reads are safe but I would recommend to avoid multiple writes to the same container. But you can write to memory you manage on your own. The difference to a vector would be that you can be sure that the memory would not be changed or reallocated at the same time. Otherwise you can also use a semaphore but this would probably decrease the efficiency and if you use several it can even cause deadlocks if you don't work properly.