The output is a series of strings written to the console. I think this is independent of the problem description though: once you have either a slice of results in order, or a channel returning results in order, then the problem is solved.
On Friday, January 25, 2019 at 9:36:53 PM UTC+1, twp...@gmail.com wrote: > > For task submission, I have a slice of tasks. The easy way to submit them > is to spin up a goroutine that writes them sequentially to a channel and > then closes the channel when there are no more tasks. > > On Friday, January 25, 2019 at 9:29:43 PM UTC+1, robert engels wrote: >> >> I think the reason you haven’t found a library, is that given the >> specifications, it is probably less than 100 lines of Go code to accomplish. >> >> The important elements lacking in your specification though are “how are >> the tasks submitted” (e.g. http? in code ?, etc.) , , and “how is the >> output presented” (e.g. to the console, each task decides, etc .) >> >> On Jan 25, 2019, at 1:04 PM, twp...@gmail.com wrote: >> >> Hi, >> >> I have a number of slow tasks that I want to run concurrently across >> runtime.NumCPU() workers in a single process. The tasks have a specific >> input order, but they are completely independent of each other and can >> execute in any order. I would like to print the output of each task in the >> same order as the input order of tasks. >> >> This can be implemented by including each task's index in the input order >> as it is distributed via a channel to the workers, and the final collection >> of results assembled using these task indexes before the results are >> printed. >> >> Assumptions: >> - Small number of tasks (~10,000 max), i.e. this easily fits in memory. >> - Single Go process, i.e. I don't want/need a distributed system. >> >> This feels like it should be common problem and there's probably either a >> library or a standard Go pattern out there which can do it. My web search >> skills didn't find such a library though. Do you know of one? >> >> Cheers, >> Tom >> >> >> Background info to avoid the XY problem <http://xyproblem.info/>: this >> is to make chezmoi <https://github.com/twpayne/chezmoi> run faster. I >> want to run the doctor checks >> <https://github.com/twpayne/chezmoi/blob/ed27b49f9ca4cd3662e6a59908dee24b0d295b79/cmd/doctor.go#L102-L163> >> >> (basically os.Exec'ing a whole load of binaries to get their versions) >> concurrently in the short term. In the long term I want to make chezmoi's >> apply concurrent, so it runs faster too. In the first case, the order >> requirement is because I want all users to see the output in the same order >> so that it's easy to compare. In the second case, the order requirement >> comes because I need to ensure that parent directories are in the correct >> state before checking their children. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
