There could be different problems with your code:
1. dijkstra_shortest_paths might not be defined on the remote workers (your snippet doesn't show where you define this); you can check this by doing remotecall_fetch(3,isdefined,:dijkstra_shortest_paths) 2. d has to be a SharedArray if you want to write on it from the worker processors directly, but this only works for bits types so far if I'm not mistaken
