Re: [Bug-gsl] ppc64le: linalg test failed

[James Ostrander]

To be clear, this occurred on ppc64le architecture (POWER8).

On Wed, Mar 1, 2017 at 2:04 PM, James Ostrander <address@hidden> wrote:

> Hi, I wanted to report a test failure in git master.
>
> make check:
>
> make[3]: Leaving directory '/home/u0017592/projects/gsl/cblas'
> make[2]: Leaving directory '/home/u0017592/projects/gsl/cblas'
> make[1]: Leaving directory '/home/u0017592/projects/gsl/cblas'
> Making check in blas
> make[1]: Entering directory '/home/u0017592/projects/gsl/blas'
> make[1]: Nothing to be done for 'check'.
> make[1]: Leaving directory '/home/u0017592/projects/gsl/blas'
> Making check in linalg
> make[1]: Entering directory '/home/u0017592/projects/gsl/linalg'
> make  test
> make[2]: Entering directory '/home/u0017592/projects/gsl/linalg'
> gcc -DHAVE_CONFIG_H -I. -I..  -I..   -g -O2 -MT test.o -MD -MP -MF
> .deps/test.Tpo -c -o test.o test.c
> mv -f .deps/test.Tpo .deps/test.Po
> /bin/bash ../libtool  --tag=CC   --mode=link gcc  -g -O2   -o test test.o
> libgsllinalg.la ../blas/libgslblas.la ../cblas/libgslcblas.la
> ../permutation/libgslpermutation.la ../matrix/libgslmatrix.la ../vector/
> libgslvector.la ../block/libgslblock.la ../complex/libgslcomplex.la
> ../ieee-utils/libgslieeeutils.la ../err/libgslerr.la ../test/libgsltest.la
> ../sys/libgslsys.la ../utils/libutils.la ../rng/libgslrng.la -lm
> libtool: link: gcc -g -O2 -o .libs/test test.o  ./.libs/libgsllinalg.a
> ../blas/.libs/libgslblas.a ../cblas/.libs/libgslcblas.so
> ../permutation/.libs/libgslpermutation.a ../matrix/.libs/libgslmatrix.a
> ../vector/.libs/libgslvector.a ../block/.libs/libgslblock.a
> ../complex/.libs/libgslcomplex.a ../ieee-utils/.libs/libgslieeeutils.a
> ../err/.libs/libgslerr.a ../test/.libs/libgsltest.a
> ../sys/.libs/libgslsys.a ../utils/.libs/libutils.a ../rng/.libs/libgslrng.a
> -lm
> make[2]: Leaving directory '/home/u0017592/projects/gsl/linalg'
> make  check-TESTS
> make[2]: Entering directory '/home/u0017592/projects/gsl/linalg'
> make[3]: Entering directory '/home/u0017592/projects/gsl/linalg'
> FAIL: test
> ============================================================
> ================
> Testsuite summary for gsl 2.3+
> ============================================================
> ================
> # TOTAL: 1
> # PASS:  0
> # SKIP:  0
> # XFAIL: 0
> # FAIL:  1
> # XPASS: 0
> # ERROR: 0
> ============================================================
> ================
> See linalg/test-suite.log
> ============================================================
> ================
> Makefile:762: recipe for target 'test-suite.log' failed
> make[3]: *** [test-suite.log] Error 1
> make[3]: Leaving directory '/home/u0017592/projects/gsl/linalg'
> Makefile:868: recipe for target 'check-TESTS' failed
> make[2]: *** [check-TESTS] Error 2
> make[2]: Leaving directory '/home/u0017592/projects/gsl/linalg'
> Makefile:941: recipe for target 'check-am' failed
> make[1]: *** [check-am] Error 2
> make[1]: Leaving directory '/home/u0017592/projects/gsl/linalg'
> Makefile:973: recipe for target 'check-recursive' failed
> make: *** [check-recursive] Error 1
>
>
> linalg/test-suite.log contents:
>
> =====================================
>    gsl 2.3+: linalg/test-suite.log
> =====================================
>
> # TOTAL: 1
> # PASS:  0
> # SKIP:  0
> # XFAIL: 0
> # FAIL:  1
> # XPASS: 0
> # ERROR: 0
>
> .. contents:: :depth: 2
>
> FAIL: test
> ==========
>
> FAIL: COD_lssolve lin2 res ( 20,  5)[0]: -7.02155399878759765e-16
> 1.11022302462515654e-16
>  (-7.02155399878759765e-16 observed vs 1.11022302462515654e-16 expected)
> [153964]
> FAIL: COD_lssolve lin2 res ( 20,  5)[1]: -1.70459744688110515e-19
> 2.22044604925031308e-16
>  (-1.70459744688110515e-19 observed vs 2.22044604925031308e-16 expected)
> [153965]
> FAIL: COD_lssolve lin2 res ( 20,  5)[2]: -1.8959167034375034e-16
> 4.44089209850062616e-16
>  (-1.8959167034375034e-16 observed vs 4.44089209850062616e-16 expected)
> [153966]
> FAIL: COD_lssolve lin2 res ( 20,  5)[3]: -3.40919489375832763e-19
> 4.44089209850062616e-16
>  (-3.40919489375832763e-19 observed vs 4.44089209850062616e-16 expected)
> [153967]
> FAIL: COD_lssolve lin2 res ( 20,  5)[4]: 1.88909831364999159e-16
> 8.88178419700125232e-16
>  (1.88909831364999159e-16 observed vs 8.88178419700125232e-16 expected)
> [153968]
> FAIL: pcholesky_invert unscaled hilbert (  4,  4)[0,2]:
> -2.55795384873636067e-13                        0
>  (-2.55795384873636067e-13 observed vs 0 expected) [650818]
> FAIL: mcholesky_invert unscaled hilbert (  4,  4)[0,2]:
> -2.55795384873636067e-13                        0
>  (-2.55795384873636067e-13 observed vs 0 expected) [789499]
> FAIL test (exit status: 1)
>
>
> gcc version:
>
> gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
>
>
> Any idea on the cause? Is it an error in the test, or would that component
> actually produce invalid results?
>
> --
> *James Ostrander*
> *ITS Administrative Info Srvcs*
>



-- 
*James Ostrander*
*ITS Administrative Info Srvcs*