I am having trouble parsing "Particle index array permuted based on sort" in step 2. Would someone mind elaborating on that? Thank you!
adilets
So each particle in particle_index has a corresponding cell in grid_index, after grid_index is sorted particle_index is permuted in such a way that each particle in particle_index still corresponds to its own cell but all particles that correspond to the same cell are sorted.
I am having trouble parsing "Particle index array permuted based on sort" in step 2. Would someone mind elaborating on that? Thank you!
So each particle in particle_index has a corresponding cell in grid_index, after grid_index is sorted particle_index is permuted in such a way that each particle in particle_index still corresponds to its own cell but all particles that correspond to the same cell are sorted.