Blitz Support :

tveldhui_at_[hidden]

-- 
Todd Veldhuizen  /  tveldhui_at_[hidden]  /  Indiana University Computer Science
On Tue, 2 Sep 2003, Julian Cummings wrote:
> Hello Fernando,
>
> Fernando Perez wrote:
>
> > Hi all,
> >
> > I've been using blitz in the past, from a version included by Eric
> > Jones in Sicpy's weave package (python support).  He used a snapshot
> > from 2000/12/13 for that.  I decided to update to current CVS because
> > I'm having some strange problems with that, and would rather not
> > report a bug which has been fixed for 2 years :)
> >
> > Here come a few initial comments:
> >
> > 1. First, it might be a good idea to update the webpage
> > http://www.oonumerics.org/blitz/download/ at the end, where it
> > describes using cvs.  Instead of
> >
> > *********
> > NOTE: The CVS repository is mainly intended for developers. It does
> > not contain the configure script referred to in the Installation
> > section in the User's Guide. You will need additional tools to
> > generate it: be sure to have autoconf and automake installed and issue
> > aclocal; autoheader; automake -a; autoconf
> >
> > in your favourite shell.
> > *********
> >
> > It should say:
> >
> > *********
> > NOTE:...
> >
> > be sure to have at least version 2.57 of autoconf and 1.7.6 of
> > automake installed and issue
> >
> > autoreconf -vif
> >
> > in your favourite shell.  You can then proceed with the usual
> > ./configure;make;make install steps.
> > *********
> >
> >
> > This would save those willing to use CVS a good deal of frustration
> > and mailing list hunting (though truth be told, all the info _was_ in
> > the archives, which is good).
>
> OK.  Todd V. is still in charge of the oonumerics.org/blitz website, so
> perhaps he could make these changes at some point, just so the
> information is consistent.
>
> >
> > 2.  The problem reported in
> > http://www.oonumerics.org/MailArchives/blitz-support/msg00768.php
> >
> > is still present.  It can, as was pointed in followups, be handled by
> > adding the --disable-shared flag to ./configure.  But it would be
> > worth at least adding a note about it to the CVS instructions, if it
> > is not reasonable to expect a fix soon.
>
> Using --disable-shared is just a hack to avoid worrying about run-time
> ld library paths.  This problem goes away if you set your
> LD_LIBRARY_PATH to include the directory where libblitz.so can be found.
>  Alternately, we could add a --rpath option to indicate the proper path
> at link time when building the little stencil programs for the
> documentation.  I'm not a big fan of using the --rpath option, since it
> removes flexibility in locating shared libraries.
>
> >
> > 3.  After a successful build with the above caveats, I tried running
> > the test suite, and it fails with:
> >
> > planck[blitz_cvs]> make check-testsuite
> >
> > [snip]
> >
> > Running test suite...
> > Adnene-Ben-Abdallah-1
> > Adnene-Ben-Abdallah-2
> > arrayresize
> > chris-jeffery-1
> > chris-jeffery-2
> > chris-jeffery-3
> > complex-test
> > constarray
> > contiguous
> > copy
> > ctors
> > derrick-bass-1
> > derrick-bass-3
> > exprctor
> > make[1]: *** [check-testsuite] Error 1
> > make[1]: Leaving directory `/home/fperez/usr/local/blitz_cvs/testsuite'
> > make: *** [check-testsuite] Error 1
> >
> > This is running on a stock RedHat 9.0 box, Pentium 4, 1 GB of RAM:
> >
> > planck[blitz_cvs]> gcc --version
> > gcc (GCC) 3.2.2 20030222 (Red Hat Linux 3.2.2-5)
> >
> > planck[blitz_cvs]> uname -a
> > Linux planck 2.4.20-8 #1 Thu Mar 13 17:54:28 EST 2003 i686 i686 i386
> > GNU/Linux
> >
> > With a make -n I got what it wanted to do and ran the same commands as
> > a separate script.  The problem is:
> >
> > ...
> > exprctor
> > ./test: line 6:  7823 Segmentation fault      ( ./$prog >/dev/null 2>&1 )
> >
> > exprctor is indeed segfaulting.  If I remove it from the list of tests
> > to run, the suite passes.  Someone who knows the code might want to
> > look into why exprctor is crashing.
> >
> I have done just that and I believe I spotted the problem.  I have
> checked into the cvs repository a patch for the file
> blitz/array/methods.cc that makes exprctor work properly
> again, at least on my Linux box.  Thanks for the bug reports.
>
> Regards, Julian C.
>
> --
> Dr. Julian C. Cummings                       E-mail: cummings_at_[hidden]
> California Institute of Technology           Phone:  626-395-2543
> 1200 E. California Blvd., Mail Code 158-79   Fax:    626-584-5917
> Pasadena, CA 91125
>
>
>
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