I think that it is possible to emulate symlinks in windows. But it may require some extra programs. A quick google search gives this page which seems to be written from a more *X point of view: http://www.shell-shocked.org/article.php?id=284
In short, despite the shortcomings you can wrap a symlink in a shell extension. However, this may not be worth it. However, I just never mess around w/ shortcuts. That said, I am under the impression that you want to make a symlink gmp.h -> mpir.h (or something like that.) I always do this by doing something like making a gmp.h that simply includes "mpir.h". I dunno, maybe that doesn't work for what you want to do? -Dan On Sun, Mar 1, 2009 at 7:24 AM, Bill Hart <goodwillh...@googlemail.com> wrote: > OK, then my question to Jeff Gilchrist is how are you building GMP > 4.2.4 with MSVC? > > Is it a patched version of 4.2.4 or the bog standard version from the > GMP website. As far as I can see, MPIR 0.9.0 contains the equivalent > of Jason Martin's patches for Core 2, even for the Windows build. That > should certainly not be the same speed as standard GMP 4.2.4. > > Bill. > > 2009/3/1 William Stein <wst...@gmail.com>: >> >> On Sun, Mar 1, 2009 at 10:18 AM, Bill Hart <goodwillh...@googlemail.com> >> wrote: >>> >>> Oh, I thought you meant that GMP unaltered, from the GMP website built >>> with MSVC. >> >> Oh, you're right, I was talking nonsense. It's eMPIRe that "just >> works" with MSVC. I don't know about GMP... >> >>> So why is 4.2.4 unpatched, as fast as MPIR 0.9.0 which is not >>> unpatched (it contains the equivalent of Pierrick Gaudry's patches)? >>> >>> Bill. >>> >>> 2009/3/1 William Stein <wst...@gmail.com>: >>>> >>>> On Sun, Mar 1, 2009 at 8:35 AM, Bill Hart <goodwillh...@googlemail.com> >>>> wrote: >>>>> >>>>> GMP 4.2.4 builds with MSVC?? >>>> >>>> Yes. We ship project files for MSVC, and it's very easy to use them, >>>> even in a scripted install. Even I've built it with MSVC (for >>>> windows.sagemath.org). Given that you use Windows a lot, you should >>>> try it out :-) >>>> >>>>> We will certainly have the same naming convention between the linux >>>>> and windows builds in mpir-1.0.0. The binaries will be called mpir*. >>>>> Probably we will introduce a little script to set up links or rename >>>>> them for people who just want to plug mpir in instead of gmp and don't >>>>> care about overwriting their existing gmp binaries. >>>> >>>> How do you setup links like that on Windows? Somehow symlink support in >>>> windows is a bit different. >>>> >>>>> >>>>> Bill. >>>>> >>>>> 2009/3/1 Jeff Gilchrist <jeff.gilchr...@gmail.com>: >>>>>> >>>>>> On Sat, Feb 28, 2009 at 12:54 PM, <ja...@njkfrudils.plus.com> wrote: >>>>>> >>>>>>> This could make a nice "real world" benchmark for MPIR , where we have >>>>>>> cache >>>>>>> misses and branch mispredictions. The current mpirbench and speed don't >>>>>>> have >>>>>>> these features. For example if we pipeline the entire mul_basecase to >>>>>>> increase the speed , it turns out to be 1.5x larger in the code cache. >>>>>>> Now >>>>>>> speed and mpirbench would probably not show any indication of this, >>>>>>> whereas >>>>>>> in the real world it may be a slowdown. >>>>>> >>>>>> Sounds like a good idea to me. I finally got around to doing some >>>>>> tests with MPIR 0.9 on Windows, both with cygwin and MSVC so I will >>>>>> post my results. It seems that what I really want to see for Windows >>>>>> is the MPIR 1.0 release with all of Brian's additions since the >>>>>> current version is essentially the same speed as GMP. >>>>>> >>>>>> Benchmark: >>>>>> time echo >>>>>> "1606274791359742683462193665835026393961358862962351944720191458360082027218282749671391672280676891140068379759963605046949616963145972154002637700442143987397361301827559875507425065995179598763956235845311986100972998806344397600124996519181" >>>>>> | ./ecm -sigma 2956027510 11e6 >>>>>> >>>>>> Results: >>>>>> AMD Opteron 248 @ 2.2GHz (Linux 64bit) >>>>>> MPIR 0.9 (gcc 3.4.6) = 2m32.406s >>>>>> GMP 4.2.4 (gcc 3.4.6) = 3m20.908s >>>>>> >>>>>> Intel Xeon E5405 @ 2.00GHz (Linux 64bit) >>>>>> MPIR 0.9 (gcc 4.1.2) = 3m45.447s >>>>>> GMP 4.2.4 (gcc 4.1.2) = 4m40.356s >>>>>> >>>>>> Intel Core2 Q9550 @ 3.4GHz (Vista 64bit) >>>>>> GMP 4.2.4 (MSVC 64bit) = 2m06.904s >>>>>> MPIR 0.9 (MSVC 64bit) = 2m07.032s >>>>>> MPIR 0.9 (cyg gcc 3.4.4) = 5m45.800s >>>>>> GMP 4.2.4 (cyg gcc 3.4.4) = 6m25.568s >>>>>> GMP 4.2.4 (MSVC 32bit) = 6m45.073s >>>>>> MPIR 0.9 (MSVC 32bit) = 6m50.230s >>>>>> >>>>>> One thing I noticed is that building MPIR in Linux you get libgmp.a >>>>>> and gmp.h files out. With Windows however, MSVC is setup to create >>>>>> mpir.lib and mpir.h which isn't consistent and I had to rename those >>>>>> files to get them to work with GMP-ECM or any other application that >>>>>> uses GMP. So whatever is decided is it possible to have both use the >>>>>> same naming convention? >>>>>> >>>>>> Regards, >>>>>> Jeff. >>>>>> >>>>>> > >>>>>> >>>>> >>>>> > >>>>> >>>> >>>> >>>> >>>> -- >>>> William Stein >>>> Associate Professor of Mathematics >>>> University of Washington >>>> http://wstein.org >>>> >>>> > >>>> >>> >>> > >>> >> >> >> >> -- >> William Stein >> Associate Professor of Mathematics >> University of Washington >> http://wstein.org >> >> >> >> > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "mpir-devel" group. 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