Vijay and Dave, Thanks for the clarification. I am currently taking fresh look at formalizing hb-relation with clocks, and wanted to check some things against the implementation. As long as I am clear on the expected behavior, the implementation of X10 is not on my critical path.
I created awake/dormant state of the clocks to express what happens in the nested case, but the stack description is much better. Regards, Tomofumi Yuki ----- Original Message ----- > From: "Vijay Saraswat" <vi...@saraswat.org> > To: x10-users@lists.sourceforge.net > Sent: Thursday, December 4, 2014 5:38:42 PM > Subject: Re: [X10-users] Nested Implicit Clock Behavior > > Tomo -- We just discussed this internally. The semantics is consistent > with what you know it to be, but it appears the implementation has some > problems which will be fixed (very soon I hope). > > On 12/4/14, 11:30 AM, David P Grove wrote: > > > > Tomofumi Yuki <tomofumi.y...@inria.fr> wrote on 12/04/2014 10:34:01 AM: > > > > > > That is different from what I understood. > > > > > > In fact, there is only one line in the language specification about > > > nested clocked finishes: > > > "Clocked finishes may be nested. The inner clocked finish operates > > > in a single phase of the outer one." > > > > > > and your description of Clock.advanceAll() is colliding with this line. > > > > > > Personally, I see little utility for nested clocked finishes if > > > inner scopes are still tied to outer clocks. > > > > > > > The description earlier in the chapter is fairly clear on what > > Clock.advanceAll() does. It advances all clocks that the activity is > > registered on. > > > > I agree that the line in the language specification you are quoting is > > out of synch with this. > > > > We've discussed and the intent was that implicit clocks should act > > like a stack of clocks with clocked finish pushing/popping a clock > > from this stack when it is entered/exited. Only the implicit clock on > > the top of the implicit stack of clocks is advanced by > > Clock.advanceAll(). All of the dynamically enclosing implicit clocks > > are hidden by the newly entered clocked finish. > > > > We'll need to add a clarifying note of this masking effect of clocked > > finish to the language specification and change the implementation to > > comply. > > > > --dave > > > > > > ------------------------------------------------------------------------------ > > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > > with Interactivity, Sharing, Native Excel Exports, App Integration & more > > Get technology previously reserved for billion-dollar corporations, FREE > > http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk > > > > > > _______________________________________________ > > X10-users mailing list > > X10-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/x10-users > > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk > _______________________________________________ > X10-users mailing list > X10-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/x10-users > ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ X10-users mailing list X10-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/x10-users
