Sorry to hear that. Sharing code is like sharing mathematical knowledge—a universal language that is naturally at home above petty squabbles. Alas, the world’s issues spoil many pure things here and there.
On Sun, Jan 27, 2019 at 2:07 AM <mountain...@gmail.com> wrote: > when i open the link, it return:Unavailable For Legal Reasons > > Viewing and/or sharing code snippets is not available in your country for > legal reasons. This message might also appear if your country is > misdetected. If you believe this is an error, please file an issue > <https://golang.org/issue>. > > 在 2019年1月26日星期六 UTC+8上午6:00:12，Michael Jones写道： >> >> code snippet: >> https://play.golang.org/p/pphzr6QKiQ3 >> >> here I have an existing serial process (using channels in preparation) >> for a run-time switch between serial and parallel evaluation. the snippet >> is that switch. >> >> N desired to be used cpus >> N worker goroutines >> N work chan >> N answer chan >> distribute work to job%N >> gather answers from job%N >> results are faster and in same total order >> >> On Fri, Jan 25, 2019 at 12:57 PM robert engels <ren...@ix.netcom.com> >> wrote: >> >>> Also you need to do is read the results (each result object should have >>> the task ID of the submission)from the channel, add the result to slice of >>> results, when result count == task count, sort the results by task id, and >>> output each one. Straightforward. >>> >>> A single Go routine reads from all of the “output channels “ (one per >>> number of CPU), and builds the result set. >>> >>> On Jan 25, 2019, at 2:39 PM, twp...@gmail.com wrote: >>> >>> 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...@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...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> -- >> >> *Michael T. jonesmichae...@gmail.com* >> > -- > 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. > -- *Michael T. jonesmichael.jo...@gmail.com <michael.jo...@gmail.com>* -- 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.
