Re: 2 recent changes - Mac OS X check

[Justin Walker <justin@mac.com>]

On Tuesday, Mar 11, 2003, at 11:56 US/Pacific, Justin Walker wrote:

> On Tuesday, Mar 11, 2003, at 06:13 US/Pacific, Bill Allombert wrote:
>
> > Hello PARI-dev,
> >
> > I would like to announce two recent changes:
> >
> > 1) PARI has now an optimised inline assembly kernel for the PowerPC
> > architecture, thanks to Guillaume Hanrot.
> >
> > Please test it especially on Mac OS X. We have only tested it on 
> > Linux.
>
> I checked out ToT and it builds 'darwin-none'.  What's the trick to 
> get darwin-ppc and the corresponding gmp kernel?

Ah, well.  After I sent this, I R'd the FM, and discovered the secret.  
Sort of.  Here's the banner I get:

           GP/PARI CALCULATOR Version 2.2.6 (development CHANGES-1.704)
                   unknown (PPC/GMP-4.1 kernel) 32-bit version
                compiled: 03/11/03, gcc-3.1 20020420 (prerelease)
                (readline v4.1 enabled, extended help available)

                       Copyright (C) 2003 The PARI Group

So it has (I'm assuming) the ppc-gmp kernel, but I don't understand the 
'unknown' bit.

Some other nits:
1) it builds in Odarwin-none.  Why not Odarwin-ppc?  Is this related to 
'unknown' above?

2) The build didn't actually succeed; I had to hand-tweak it.  There is 
a spurious "-Wl,,/usr/local/lib" in the 'ld' line that causes a hiccup:
            ld: can't open:  (No such file or directory, errno = 2)

I re-executed the load line spit out by the build process, with the -W 
removed, and it built successfully.

3) There are a few oddities in the 'configure' phase I don't yet get:
   - ...I did not find getrlimit.
     ...I did not find opendir.
    These are both in libSystem

   - ...I did not find dlopen.
    This is reasonable, but is there a way to specify where libdl 
lives?  It's available on my system in a (fink-provided) non-standard 
location.
    With 'libdl', we can support install(), as we established a while 
back (this is a sort of "If we had ham, we could have ham and eggs, if 
we had eggs" situation, since there was also a libtool issue, as I 
recall).

   - Using GNU readline, version 4.1
     My system has (in /usr/local/lib, where configure found it) 
version 4.2 and "4":
           libreadline.4.2.dylib
           libreadline.4.dylib
     How did Configure come up with 4.1?

Here is the 'make bench' result for my 450Mhz G4 tower:
* Testing objets        for gp-sta..TIME=20
* Testing analyz        for gp-sta..TIME=310
* Testing number        for gp-sta..TIME=200
* Testing polyser       for gp-sta..TIME=80
* Testing linear        for gp-sta..TIME=100
* Testing elliptic      for gp-sta..TIME=200
* Testing sumiter       for gp-sta..TIME=370
* Testing graph         for gp-sta..TIME=100
* Testing program       for gp-sta..BUG [170]
* Testing trans         for gp-sta..TIME=600
* Testing nfields       for gp-sta..TIME=1810
+++ [BUG] Total bench for gp-sta is 2512

Here is the 'make bench' result from an earlier build with this banner:
 GP/PARI CALCULATOR Version 2.2.6 (development CHANGES-1.666)
      unknown (C portable/GMP-4.1 kernel) 32-bit version

* Testing objets        for gp-sta..TIME=30
* Testing analyz        for gp-sta..TIME=360
* Testing number        for gp-sta..TIME=250
* Testing polyser       for gp-sta..TIME=100
* Testing linear        for gp-sta..TIME=130
* Testing elliptic      for gp-sta..TIME=240
* Testing sumiter       for gp-sta..TIME=540
* Testing graph         for gp-sta..TIME=150
* Testing program       for gp-sta..BUG [180]
* Testing trans         for gp-sta..TIME=1020
* Testing nfields       for gp-sta..TIME=2270
+++ [BUG] Total bench for gp-sta is 3454

Looks like close to 30% improvement over the "portable GMP" kernel.  
Great work!

Thanks.

Regards,

Justin

--
Justin C. Walker, Curmudgeon-At-Large  *
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