Howdy, Suppose I have a list of lists, and I wish to run some time-consuming process on each of these sub-list (each sub-list is independent, so I am not worried about race conditions).
I think the easiest way to demonstrate my thought process is with code: I have a list of lists and the number of cores I wish to use - master_list := [ [...], [...], ..., [...]]; n := Length(master_list); cores:=15; I have a time consuming function whose arguments are ranges into master_list - time_consuming_func := function(start_index, stop_index) ... end; I portion out master_list, creating a list a tasks - task_list:=[]; start:=1; for i in [1..cores] do flag:=0; if i <= n mod cores then flag:=1; fi; if i > n then break; fi; len:=Int(n/cores)+flag; Add(task_list, RunTask( time_consuming_func , start, start+len-1)); start:=start+len; od; I had several hopes: 1: I could get a list of tasks, and then use something like TaskFinished to see if each are done 2: Store the result of each time_consuming_func in the global master_list But I ran into one problem: RunTask seems to be blocking. Instead of spawning a process and continuing with my loop, it waits until each task finishes. I considered DelayTask instead of RunTask so that I could just use WaitTask, but DelayTask does not seem to exist (similarly for asynchronous tasks). Is there an alternative? To follow the documentation, I'd like to avoid the lower-level CreateThread if I can. Also, number 2 makes some assumptions on how memory works. Is it actually valid to have a thread working on element i of master_list modify the global master_list[i]? I'd greatly appreciate any insight! Thanks, Alan _______________________________________________ Forum mailing list Forum@gap-system.org https://mail.gap-system.org/mailman/listinfo/forum
