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Date: | 2008-07-15 (19:38) |
From: | Jean Krivine <jean_krivine@h...> |
Subject: | Re: [Caml-list] memory usage |
I'd be glad to try the patch if you could post it somewhere! J On Tue, Jul 15, 2008 at 3:31 PM, Andres Varon <avaron@gmail.com> wrote: > Hello Jean, > > There is no 64-bit native OCaml compiler for Mac OS X intel. I have a patch > that works in Leopard, but did not compile opt.opt in Tiger, meaning that > something is not OK, so I did not offer it to the community. The bootstrap > went fine, findlib and godi compiled OK too. I can post the patches > somewhere if you want to give it a shot. > > My memory intensive application runs fine in Leopard with this compiler. But > the binaries do not execute in Tiger (I found that other people had the same > trouble copying a 64 bit apps from Leopard to Tiger and the other way > around, but didn't look into it). > > If you want it ... I can post it, maybe someone can cleanup my job? All that > would be needed after patching is: > > ./configure -host x86_64-apple-darwin -prefix /opt/ocaml/experimental > > (The prefix I always add for my ocaml-modified comilers). > > best, > > Andres > > On Jul 15, 2008, at 1:06 PM, Jean Krivine wrote: > >> Dear all >> >> I downloaded the last version of ocaml (3.10.2) but I must confess I >> don't know what option I should pass to the compiler to make a binary >> that uses 64 bits. >> I tried naively ocamlopt -ccopt -arch -ccopt x86_64 but that doesn't >> work. Any idea? >> >> >> >> On Fri, Jul 11, 2008 at 6:01 PM, Richard Jones <rich@annexia.org> wrote: >>> >>> On Fri, Jul 11, 2008 at 03:49:26PM -0400, Jean Krivine wrote: >>>> >>>> I am trying to run a stochastic simulator (written in ocaml) on a huge >>>> data set and I have the following error message: >>> >>> I can confirm that OCaml works fine with huge datasets, on 64 bit >>> platforms anyway. >>> >>>> sim(9595) malloc: *** mmap(size=1048576) failed (error code=12) >>>> *** error: can't allocate region >>>> *** set a breakpoint in malloc_error_break to debug >>>> Fatal error: out of memory. >>>> >>>> My system: >>>> >>>> Mac Pro running OS X 10.5.4 >>>> Processor: 2 x 2.8 GHz Quad-Core Intel Xeon >>>> Memory: 10 GB 800 MHz DDR2 FB-DIMM >>>> >>>> Does someone know what happened? Do you have any idea of any parameter >>>> I could tune in order to avoid that? >>> >>> Is the compiler 32 bits or 64 bits on this machine? Try doing: >>> >>> $ ocaml >>> # Sys.word_size ;; >>> >>> It should print out either '32' or '64'. >>> >>> Also run your program under whatever the OS X equivalent of 'strace' >>> is (ktrace?) to find out exactly why the mmap call fails. >>> >>> OCaml <= 3.10.2 on Linux suffers a nasty problem with its use of mmap >>> and randomized address spaces >>> (https://bugzilla.redhat.com/show_bug.cgi?id=445545#c9) but it doesn't >>> seem like this is the same issue. >>> >>> Rich. >>> >>> -- >>> Richard Jones >>> Red Hat >>> >>> _______________________________________________ >>> Caml-list mailing list. Subscription management: >>> http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list >>> Archives: http://caml.inria.fr >>> Beginner's list: http://groups.yahoo.com/group/ocaml_beginners >>> Bug reports: http://caml.inria.fr/bin/caml-bugs >>> >> >> _______________________________________________ >> Caml-list mailing list. Subscription management: >> http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list >> Archives: http://caml.inria.fr >> Beginner's list: http://groups.yahoo.com/group/ocaml_beginners >> Bug reports: http://caml.inria.fr/bin/caml-bugs > >