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Re: [Reduce-algebra-developers] Aborting newcslgc.cpp on MacOS Intel/12.7.6 CSL snapshot 6866
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From: Eberhard S. <esc...@ca...> - 2025-08-27 14:04:36
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Thank you very much for your report. The right person to comment on this would be Arthur Norman, however he is on vacation until late September. There were several changes to the new, conservative, garbage collector of CSL after that snapshot. Publishing a new snapshot from our side is overdue, but our old snapshot build-system is not available anymore and setting up a new one takes time. So, please bear with us until some time in October if you want to use a snapshot. Is the error which you saw with snapshot 6866 on a Mac-Intel machine reproducible? Eberhard On 27.08.25 15:03, martin gregory via Reduce-algebra-developers wrote: > I just noticed that “snapshot 6866 or higher results in” should read > “snapshot 6866 results in”. > > Apologies, > Martin > >> On 27. Aug 2025, at 14:01, martin gregory via >> Reduce-algebra-developers >> <red...@li...> wrote: >> >> Dear reduce-algebra-developers, >> >> running the procedure >> >> procedure lastprime (n) ; >> begin scalar k, kfact ; >> k:=n+1 ; >> repeat >> << k:=k-1 ; >> kfact:=factorize(k) >> >> until length(kfact) = 1 and second(first(kfact))=1; >> return first(first(kfact)) >> end ; >> >> with n=10^25 on MacOS Intel/12.7.6 CSL snapshot 6866 or higher >> results in the following message >> >> !!! Aborting: newcslgc.cpp:266 page type not recognised >> >> >> and the last number tested before the abort is 10^25-112. >> >> On the same macbook with the same call PSL snapshot 6866 and both PSL >> and CSL snapshot 6658 all complete without issues. On Linux 5.15.187 >> CSL and PSL snapshots 7131, 6860 and 6658 (compiled locally) all >> complete without issues. The result in all cases is 10^25-123. >> Repeating up to 10^40 on these versions causes no problems. >> >> The log files for the both CSL and PSL 6866 runs are attached. >> >> In case it's relevant, here are the machine specs: >> >> Darwin Kernel Version 21.6.0: Mon Jun 24 00:56:10 PDT 2024; >> root:xnu-8020.240.18.709.2~1/RELEASE_X86_64 x86_64 >> Processor: Intel(R) Core(TM) i5-5350U CPU @ 1.80GHz >> >> Linux 5.15.187 #1 SMP PREEMPT Thu Jul 10 19:03:37 CDT 2025 x86_64 >> Processor: Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz GenuineIntel GNU/Linux >> >> Finally the context in case it helps: the R to REDUCE interface I'm >> building can notify at user-defined intervals that a calculation is >> still running and can also interrupt a calculation after a >> user-defined timeout. I'm using the above procedure to test these >> features by executing it for a series of integers to determine how >> long it takes to run on an arbitrary test system and then use this >> to calculate appropriate notification interval and timeout so that >> these will be triggered. >> >> Kind regards, >> Martin > > >> >> >> _______________________________________________ >> Reduce-algebra-developers mailing list >> Red...@li... >> https://lists.sourceforge.net/lists/listinfo/reduce-algebra-developers > > > > _______________________________________________ > Reduce-algebra-developers mailing list > Red...@li... > https://lists.sourceforge.net/lists/listinfo/reduce-algebra-developers |
