I think even stranger things can happen because of race-conditions at the filesystem level (altho we could probably protect against that if we wanted).
Robby On Tue, Dec 9, 2014 at 6:22 PM, Jay McCarthy <jay.mccar...@gmail.com> wrote: > Specifically, you can get errors like "Called export 72 and expected > set->list but got list->set. Chaos!" > > Jay > > On Tue, Dec 9, 2014 at 3:09 PM, Matthew Flatt <mfl...@cs.utah.edu> wrote: >> Unfortunately, the bytecode compiler is not completely deterministic. >> Generating the same ".zo" file from the same source is likely to >> produce different bytes each time. The root causes are various counters >> and hash orders, and I hope to fix that eventually. For now, since the >> generated bytecode is different, there can be inconsistencies instead >> of just duplicated work. >> >> At Tue, 9 Dec 2014 11:54:16 -0800, Dan Liebgold wrote: >>> If the multiple 'raco make's would produce the same results, then there >>> should be no inconsistency, just duplicate work, right? >>> >>> And my use case is a bit different... I need to spawn the multiple 'raco >>> makes', rather than have raco make spawn multiple racket instances (via the >>> -j flag). Although this particular setup will bear some examination. >>> >>> On Tue, Dec 9, 2014 at 11:47 AM, Robby Findler <ro...@eecs.northwestern.edu> >>> wrote: >>> >>> > Ah sorry: meant to add: did you try the -j flag? >>> > >>> > >>> > On Tuesday, December 9, 2014, Robby Findler <ro...@eecs.northwestern.edu> >>> > wrote: >>> > >>> >> I think they can stomp on each other and you can get inconsistent >>> >> results, theoretically. >>> >> >>> >> Robby >>> >> >>> >> On Tuesday, December 9, 2014, Dan Liebgold <dan.liebg...@gmail.com> >>> >> wrote: >>> >> >>> >>> If I have multiple instances of raco make running and some of the files >>> >>> they are checking/rebuilding are shared across the instances... what >>> >>> happens? Does raco make have lock to ensure no contention? Or does each >>> >>> process potentially redo some work? >>> >>> >>> >>> -- >>> >>> Dan Liebgold [dan.liebg...@gmail.com] >>> >>> >>> >> >>> >>> >>> -- >>> Dan Liebgold [dan.liebg...@gmail.com] >>> _________________________ >>> Racket Developers list: >>> http://lists.racket-lang.org/dev >> _________________________ >> Racket Developers list: >> http://lists.racket-lang.org/dev > > > > -- > Jay McCarthy > http://jeapostrophe.github.io > > "Wherefore, be not weary in well-doing, > for ye are laying the foundation of a great work. > And out of small things proceedeth that which is great." > - D&C 64:33 > _________________________ > Racket Developers list: > http://lists.racket-lang.org/dev _________________________ Racket Developers list: http://lists.racket-lang.org/dev