I've checked the code over and the only places this function is even
called are in mul.c and mul_n.c, and directly from toom8h_mul.c
itself.

In all cases, it is impossible, with those thresholds, to have bn < 86.

Something is definitely going wrong. Either it is picking up the wrong
tuning values somehow, the library needs rebuilding, there is a
compiler bug, something is wrong with the assert. I don't know.

But I'm pretty confident it is not a bug in the way the thresholds are handled.

Bill.

On 26 May 2010 13:35, Jason Moxham <[email protected]> wrote:
>
> gcc -std=gnu99 -m64 -mcpu=970 -O3 -o .libs/t-gcdext t-gcdext.o
> ../../tests/.libs/libtests.a
> /home/jasonmoxham/mpir/branches/test_stuff/varro/.libs/libmpir.dylib
> ../../.libs/libmpir.dylib
> creating t-gcdext
> make  check-TESTS
> PASS: t-asmtype
> PASS: t-aors_1
> PASS: t-divrem_1
> PASS: t-fat
> PASS: t-get_d
> PASS: t-instrument
> PASS: t-iord_u
> PASS: t-mulmid
> PASS: t-mp_bases
> PASS: t-perfsqr
> PASS: t-scan
> PASS: t-lorrshift1
> PASS: t-divebyff
> PASS: t-addadd_n
> PASS: t-addsub_n
> PASS: t-subadd_n
> PASS: t-redc_basecase
> PASS: t-divebyBm1of
> PASS: t-mullowhigh
> PASS: t-mullow_basecase
> PASS: t-neg
> PASS: t-mulmod_2expp1
> PASS: t-mulmod_2expm1
> PASS: t-tdiv_q
> PASS: t-sb_divappr_q
> PASS: t-dc_divappr_q_n
> PASS: t-inv_divappr_q_n
> PASS: t-invert
> PASS: t-sb_div_q
> PASS: t-sb_div_qr
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-dc_div_q
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-dc_div_qr
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-dc_divappr_q
> PASS: t-dc_div_qr_n
> PASS: t-inv_divappr_q
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-inv_div_q
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-inv_div_qr
> PASS: t-inv_div_qr_n
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-tdiv_qr
> PASS: t-sb_bdiv_q
> PASS: t-sb_bdiv_qr
> PASS: t-dc_bdiv_q_n
> PASS: t-dc_bdiv_qr_n
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-dc_bdiv_qr
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-dc_bdiv_q
> toom8h_mul.c:84: GNU MP assertion failed: bn >= 86
> FAIL: t-gcdext
> PASS: st_fat
> PASS: st_instrument
> =============================================================
> 9 of 48 tests failed
> Please report to http://groups.google.co.uk/group/mpir-devel/
> =============================================================
> make[4]: *** [check-TESTS] Error 1
> make[3]: *** [check-am] Error 2
> make[2]: *** [check-recursive] Error 1
> make[1]: *** [check-recursive] Error 1
> make: *** [check] Error 2
> varro
>
> PASSED CC=gcc CXX=g++ configure=
> PASSED CC=gcc CXX=g++ configure= --enable-cxx --enable-gmpcompat
> FAILED CC=gcc CXX=g++ configure= --enable-cxx --enable-gmpcompat --enable-
> assert --enable-alloca=debug
>
> This is on varro 64 bit     ie   mpn/powerpc64/gmp-mparam.h
> and this has been tuned
>
>
>
> On Wednesday 26 May 2010 13:23:25 Jason Moxham wrote:
>> This on Cato , note make tune fails on cato , so we cannot tune the
>> parameters
>>
>>
>> On Wednesday 26 May 2010 09:29:49 Cactus wrote:PASS: t-dc_bdiv_q_n
>> PASS: t-dc_bdiv_qr_n
>> PASS: t-dc_bdiv_qr
>> PASS: t-dc_bdiv_q
>> /bin/sh: line 4:   617 Segmentation fault      ${dir}$tst
>> FAIL: t-gcdext
>> PASS: st_fat
>> PASS: st_instrument
>> =============================================================
>> 1 of 48 tests failed
>> Please report to http://groups.google.co.uk/group/mpir-devel/
>> =============================================================
>> make[4]: *** [check-TESTS] Error 1
>> make[4]: Leaving directory
>> `/.root0/home/jasonmoxham/mpir/branches/test_stuff/sca-m0n8.scsystem/tests/
>>mpn' make[3]: *** [check-am] Error 2
>> make[3]: Leaving directory
>> `/.root0/home/jasonmoxham/mpir/branches/test_stuff/sca-m0n8.scsystem/tests/
>>mpn' make[2]: *** [check-recursive] Error 1
>> make[2]: Leaving directory
>> `/.root0/home/jasonmoxham/mpir/branches/test_stuff/sca-m0n8.scsystem/tests'
>> make[1]: *** [check-recursive] Error 1
>> make[1]: Leaving directory
>> `/.root0/home/jasonmoxham/mpir/branches/test_stuff/sca-m0n8.scsystem'
>> make: *** [check] Error 2
>> sca-m0n8.scsystem
>>
>> FAILED CC=gcc CXX=g++ configure=
>> jasonmox...@sca-m0n8 ~/mpir/branches/test_stuff $
>>
>> We need a better set of default params , we cant have gcdext crashing on
>> any system we havent tuned.
>>
>> Note varro gives some spurious errors sometimes , they go away when you
>> retry the operation , this must be something to do with NFS
>>
>> > On May 26, 8:00 am, Minh Nguyen <[email protected]> wrote:
>> > > Hi folks,
>> > >
>> > > MPIR 2.1.0-rc1 was released on 25th May 2010.
>> > >
>> > > Source:http://www.mpir.org/mpir-2.1.0-rc1.tar.gz
>> > >
>> > > Documentation:http://www.mpir.org/mpir-2.1.0.pdf
>> > >
>> > > The main features and changes in this release cycle are:
>> > >
>> > > * Fixed the xgcd normalisation issue and redid the tuning code for gcd
>> > > and xgcd * Fixes for compiling with GCC 4.5.0 on Itanium
>> > > * Set default flags for GCC to -O2 on Itanium as GCC 4.5.0 fails to
>> > > handle -O3 * Experimental build with Visual Studio 2010
>> > > * Removed all old gcdext_threshold that were set to zero
>> > > * Changed all mpn_sqr_n to mpn_sqr
>> > >
>> > > The changelog for the MPIR 2.1.0 release cycle is available at
>> > >
>> > > http://www.mpir.org/changes.html
>> > >
>> > > If it is missing something, please report to this list. Please test
>> > > and report all issues.
>> > >
>> > > As I'm progressing in managing this release cycle, I'm fleshing out
>> > > details on issuing an MPIR release. The current document [1] is a work
>> > > in progress and based on Bill's recent post [2] in which he outlines
>> > > necessary workflows. Comments, suggestions, or enhancements are
>> > > welcome.
>> > >
>> > > [1]http://www.mpir.org/release.html
>> > >
>> > > [2]http://groups.google.com/group/mpir-devel/browse_thread/thread/f939c
>> > >5. ..
>> > >
>> > > --
>> > > Regards
>> > > Minh Van Nguyen
>> >
>> > Hi Minh,
>> >
>> > Congratulations on your progress in taking on the release management
>> > role!
>> >
>> > There was a minor error in 'setversion' that meant that the Windows
>> > version string was not being set.
>> >
>> > I think (maybe 'hope' as I am not a frequent user of Unix text
>> > processing tools) I have corrected setversion and gmp-h.in in the SVN
>> > repository accordingly.
>>
>> looks fine to me
>>
>> >     Brian
>
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