On 28/11/2012 16:32, judicael ribault wrote: > Hi, > > I'm wondering if parallel execution is really parallel or not.
In most cases it is. > I created a simple workflow containing a nested workflow. The nested > workflow can run in parallel. We pass to the nested workflow two > strings constant so the workflow must be executed 2 times, in > parallel. The nested workflow contains a beanshell script that wait > using Thread.sleep(in1). > > The first input is 10 seconds, and the second input is 20 seconds. > > If the execution is in parallel, the workflow must stop after 20 > seconds. In the example it stops after 30 seconds (10 seconds + 20 > seconds). Nevertheless, the 2 occurrence start at the same time in the > monitoring view :/ > > Is it a bug? I've checked the code and all invocations of the same beanshell service use the same interpreter. The invocations are synchronized on that interpreter. I think the reason for doing this was that the time taken to start up an interpreter was longer than most beanshell invocations took. I remember talk of having a pool of interpreters but I do not think that ever got implemented. I can create a Jira issue to sort this out if you want. > Is there another way to do what I want? I will ask other people. I think it depends on the type of code you want to call. Does it have to be beanshell scripts? > Best regards. Alan ------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: INSIGHTS What's next for parallel hardware, programming and related areas? Interviews and blogs by thought leaders keep you ahead of the curve. http://goparallel.sourceforge.net _______________________________________________ taverna-users mailing list [email protected] [email protected] Web site: http://www.taverna.org.uk Mailing lists: http://www.taverna.org.uk/about/contact-us/
