https://github.com/SienaCSISParallelProcessing/quadtree-jacobi/blob/0db33ffd87816cd5a4757d438f2c506a745b5dd3/pthreads/quadtree.c#L126 It seems the 0 should be `start_lq`.
quadtree-jacobi/pthreads/quadtree.c
Line 126 in 0db33ff
It seems the 0 should be
start_lq.