Re: [Bug-gsl] gsl 2.1 test failures

[Patrick Alken]

Hello,

  It looks like the test tolerances are too tight for 32 bit - all of 
my testing has been on 64 bit systems and I unfortunately don't have 
access to a 32 bit system to debug this. Just to verify, did you see 
these same failures for version 2.0? That code didn't change at all 
between 2.0 and 2.1 but just wanted to make sure.

The first thing I would try is to locate lines 178-179 of 
multifit/test_nonlinear.c:

178   const double xtol = pow(GSL_DBL_EPSILON, 0.9);
179   const double gtol = pow(GSL_DBL_EPSILON, 0.9);

and increase these tolerances (set both them to 1.0e-3 as a starting 
point). Could you let me know if the test passes with this change? Then 
it would simply be a matter of finding a good value to get 32 bit tests 
to pass.

Patrick

On 11/12/2015 10:55 AM, Orion Poplawski wrote:
> Looking at updating the Fedora gsl package to 2.1, but we're seeing test
> failures on 32-bit builds:
>
> FAIL: test
> ==========
> FAIL: lmsder/scale=1/linear_rank1 did not converge, status=exceeded max number
> of iterations [190252]
> FAIL: lmsder/scale=1/weights/linear_rank1 did not converge, status=exceeded
> max number of iterations [190255]
> FAIL: ridge/lmsder/linear_rank1 did not converge, status=exceeded max number
> of iterations [190258]
> FAIL: lmsder/scale=10/linear_rank1 did not converge, status=exceeded max
> number of iterations [190284]
> FAIL: lmsder/scale=10/weights/linear_rank1 did not converge, status=exceeded
> max number of iterations [190287]
> FAIL: ridge/lmsder/linear_rank1 did not converge, status=exceeded max number
> of iterations [190290]
> FAIL: lmsder/scale=100/linear_rank1 did not converge, status=exceeded max
> number of iterations [190316]
> FAIL: lmsder/scale=100/weights/linear_rank1 did not converge, status=exceeded
> max number of iterations [190319]
> FAIL: ridge/lmsder/linear_rank1 did not converge, status=exceeded max number
> of iterations [190322]
> FAIL: lmsder/scale=1/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [190354]
> FAIL: lmsder/scale=1/weights/linear_rank1zeros did not converge,
> status=exceeded max number of iterations [190357]
> FAIL: ridge/lmsder/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [190360]
> FAIL: lmsder/scale=10/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [190396]
> FAIL: lmsder/scale=10/weights/linear_rank1zeros did not converge,
> status=exceeded max number of iterations [190399]
> FAIL: ridge/lmsder/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [190402]
> FAIL: lmsder/scale=100/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [190438]
> FAIL: lmsder/scale=100/weights/linear_rank1zeros did not converge,
> status=exceeded max number of iterations [190441]
> FAIL: ridge/lmsder/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [190444]
> FAIL: ridge/lmsder/lambda/helical did not converge, status=exceeded max number
> of iterations [190657]
> FAIL: ridge/lmsder/L/helical did not converge, status=exceeded max number of
> iterations [190658]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=1 (-4.83804396442769695e-317
> observed vs -4.83804396442769695e-317 expected) [test uses subnormal value]
> [190660]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=2 (2.33809353535940645e-317
> observed vs 2.33809353535940645e-317 expected) [test uses subnormal value]
> [190661]
> FAIL: ridge/lmsder/lambda/helical did not converge, status=exceeded max number
> of iterations [190697]
> FAIL: ridge/lmsder/L/helical did not converge, status=exceeded max number of
> iterations [190698]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=1 (-4.83804396442769695e-317
> observed vs -4.83804396442769695e-317 expected) [test uses subnormal value]
> [190700]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=2 (2.33809353535940645e-317
> observed vs 2.33809353535940645e-317 expected) [test uses subnormal value]
> [190701]
> FAIL: ridge/lmsder/lambda/helical did not converge, status=exceeded max number
> of iterations [190737]
> FAIL: ridge/lmsder/L/helical did not converge, status=exceeded max number of
> iterations [190738]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=1 (-4.83804396442769695e-317
> observed vs -4.83804396442769695e-317 expected) [test uses subnormal value]
> [190740]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=2 (2.33809353535940645e-317
> observed vs 2.33809353535940645e-317 expected) [test uses subnormal value]
> [190741]
> FAIL: ridge/lmsder/lambda/helical did not converge, status=exceeded max number
> of iterations [190777]
> FAIL: ridge/lmsder/L/helical did not converge, status=exceeded max number of
> iterations [190778]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=1 (-4.83804396442769695e-317
> observed vs -4.83804396442769695e-317 expected) [test uses subnormal value]
> [190780]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=2 (2.33809353535940645e-317
> observed vs 2.33809353535940645e-317 expected) [test uses subnormal value]
> [190781]
> FAIL: ridge/lmsder/lambda/helical did not converge, status=exceeded max number
> of iterations [193074]
> FAIL: ridge/lmsder/L/helical did not converge, status=exceeded max number of
> iterations [193075]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=1 (-4.83804396442769695e-317
> observed vs -4.83804396442769695e-317 expected) [test uses subnormal value]
> [193077]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=2 (2.33809353535940645e-317
> observed vs 2.33809353535940645e-317 expected) [test uses subnormal value]
> [193078]
> FAIL: ridge/lmsder/lambda/helical did not converge, status=exceeded max number
> of iterations [193114]
> FAIL: ridge/lmsder/L/helical did not converge, status=exceeded max number of
> iterations [193115]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=1 (-4.83804396442769695e-317
> observed vs -4.83804396442769695e-317 expected) [test uses subnormal value]
> [193117]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=2 (2.33809353535940645e-317
> observed vs 2.33809353535940645e-317 expected) [test uses subnormal value]
> [193118]
> FAIL: ridge/lmsder/lambda/helical did not converge, status=exceeded max number
> of iterations [193154]
> FAIL: ridge/lmsder/L/helical did not converge, status=exceeded max number of
> iterations [193155]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=1 (-4.83804396442769695e-317
> observed vs -4.83804396442769695e-317 expected) [test uses subnormal value]
> [193157]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=2 (2.33809353535940645e-317
> observed vs 2.33809353535940645e-317 expected) [test uses subnormal value]
> [193158]
> FAIL: ridge/lmsder/lambda/helical did not converge, status=exceeded max number
> of iterations [193194]
> FAIL: ridge/lmsder/L/helical did not converge, status=exceeded max number of
> iterations [193195]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=1 (-4.83804396442769695e-317
> observed vs -4.83804396442769695e-317 expected) [test uses subnormal value]
> [193197]
> FAIL: ridge/lmsder/helical ridge lambda=5 i=2 (2.33809353535940645e-317
> observed vs 2.33809353535940645e-317 expected) [test uses subnormal value]
> [193198]
> FAIL: lmsder/scale=1/linear_rank1 did not converge, status=exceeded max number
> of iterations [195842]
> FAIL: lmsder/scale=1/weights/linear_rank1 did not converge, status=exceeded
> max number of iterations [195845]
> FAIL: ridge/lmsder/linear_rank1 did not converge, status=exceeded max number
> of iterations [195848]
> FAIL: lmsder/scale=10/linear_rank1 did not converge, status=exceeded max
> number of iterations [195874]
> FAIL: lmsder/scale=10/weights/linear_rank1 did not converge, status=exceeded
> max number of iterations [195877]
> FAIL: ridge/lmsder/linear_rank1 did not converge, status=exceeded max number
> of iterations [195880]
> FAIL: lmsder/scale=100/linear_rank1 did not converge, status=exceeded max
> number of iterations [195906]
> FAIL: lmsder/scale=100/weights/linear_rank1 did not converge, status=exceeded
> max number of iterations [195909]
> FAIL: ridge/lmsder/linear_rank1 did not converge, status=exceeded max number
> of iterations [195912]
> FAIL: lmsder/scale=1/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [195944]
> FAIL: lmsder/scale=1/weights/linear_rank1zeros did not converge,
> status=exceeded max number of iterations [195947]
> FAIL: ridge/lmsder/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [195950]
> FAIL: lmsder/scale=10/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [195986]
> FAIL: lmsder/scale=10/weights/linear_rank1zeros did not converge,
> status=exceeded max number of iterations [195989]
> FAIL: ridge/lmsder/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [195992]
> FAIL: lmsder/scale=100/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [196028]
> FAIL: lmsder/scale=100/weights/linear_rank1zeros did not converge,
> status=exceeded max number of iterations [196031]
> FAIL: ridge/lmsder/linear_rank1zeros did not converge, status=exceeded max
> number of iterations [196034]
> FAIL: lmsder/scale=1/fdiff/nist-hahn1 did not converge, status=exceeded max
> number of iterations [196260]
> FAIL: lmsder/scale=1/fdiff/weights/nist-hahn1 did not converge,
> status=exceeded max number of iterations [196276]
> FAIL: lmder/scale=1/fdiff/nist-hahn1 did not converge, status=exceeded max
> number of iterations [196292]
> FAIL: lmder/scale=1/fdiff/weights/nist-hahn1 did not converge, status=exceeded
> max number of iterations [196308]
>
> Full build logs here:
> https://copr-be.cloud.fedoraproject.org/results/orion/gsl2/fedora-23-i386/00139079-gsl/build.log.gz
>
> Any ideas?