1.14 testsuite failure on IRIX 6.5

1.14 testsuite failure on IRIX 6.5

[Albert Chin]

I've built 1.14 on IRIX 6.5 with the SGI C compiler. Running the
testsuite reveals the following failure:
  $ gtar zxf gsl-1.14.tar.gz
  $ cd gsl-1.14
  $ ./configure --enable-static --enable-shared
  $ gmake
  $ gmake check
  ...
  gmake[1]: Entering directory `/opt/build/china/gsl-1.14/linalg'
  gmake  test
  gmake[2]: Entering directory `/opt/build/china/gsl-1.14/linalg'
  ...
  gmake[2]: Leaving directory `/opt/build/china/gsl-1.14/linalg'
  gmake  check-TESTS
  gmake[2]: Entering directory `/opt/build/china/gsl-1.14/linalg'
  (caught [svd.c:149: SVD decomposition failed to converge (11)])
  returned error code 11 = exceeded max number of iterations
  singular value 3 =     3.5519343332483073 vs previous 3.4759016716534283
  singular value 4 =     -3.669879655406993 < 0
  singular value 5 =     2.4714076889543208 vs previous -3.669879655406993
  singular value 6 =      3.048264023427365 vs previous 2.4714076889543208
  singular value 7 =     3.5225295888345443 vs previous 3.048264023427365
  singular value 9 =    -2.7455176495938662 < 0
  singular value 10 =    -3.4997502807978464 < 0
  ...
  (100,100)[14,0]:     1.0496055751381306                        1
  (100,100)[14,5]:    0.93085854884043839                        1
  (100,100)[14,6]:  -0.048290572092724235                        0
  (100,100)[14,8]:    0.10920386685160544                        0
  (100,100)[14,10]:     1.0822962190589709                        1
  (100,100)[14,11]:    0.94357089759801505                        1
  (100,100)[14,13]:     1.0782339923500506                        1
  (100,100)[14,14]:  -0.077259780454206201                        0
  (100,100)[14,16]:   -0.11379004793284717                        0
  ...
  FAIL:   SV_decomp bigsparse [212]
  FAIL: Singular Value Decomposition [66886]
  FAIL: test
  ==================
  1 of 1 test failed
  ==================

1.13 passed all tests successfully.

-- 
albert chin (china@thewrittenword.com)

Re: 1.14 testsuite failure on IRIX 6.5

[Brian Gough]

At Sun, 2 Jan 2011 13:11:59 -0600,
> 
>   gmake[2]: Entering directory `/opt/build/china/gsl-1.14/linalg'
>   (caught [svd.c:149: SVD decomposition failed to converge (11)])
>   returned error code 11 = exceeded max number of iterations
> 
> 1.13 passed all tests successfully.

Thanks for the bug report. I don't have any solution to that.  If you
can see the cause and send a patch I will apply it. The bigsparse test
was added in 1.14 so it may not be due to any change in the code.

-- 
Brian Gough