Thanks, Dima. Installing openblas-devel did the trick. Confusingly, the system default installation is libopenblas_pthreads0 and its companion header file,, while the headers and libraries Sage wants are found in openblas-devel. Also, the system default is older (0.3.7) even than the version included in SageMath-9.2 (0.3.9). But now I get no errors from ptestlong.
I'll probably have to revisit this in a few months. openSUSE 15.3 will drop soon, and doubtless will include a much newer openblas. On Monday, May 17, 2021 at 12:34:46 PM UTC-7 dim...@gmail.com wrote: > please check the last part of the output of ./configure > > among other things it lists system libraries to install (rather than build > from source). > > it particular it would print the contents of > > > https://github.com/sagemath/sage/blob/develop/build/pkgs/openblas/distros/opensuse.txt > which is > > openblas-devel > > Most probably the pc file for openblas will be there, and we would not > have to try solving this puzzle for you > > first do > > make openblas-clean > > to remove (broken?) Sage installation of > openblas. > > > > On Mon, 17 May 2021, 19:04 Richard_L, <rich...@lozestech.com> wrote: > >> To your first point, the development headers are not installed. That can >> be remedied easily. >> To your second point, yes, pkg-config is installed. There is no >> openblas.pc, apart from that in the sage-9.3 directory tree. >> >> BTW, I had no problem with Sage-9.2, which also built openblas (0.3.9) >> from source. >> >> On Monday, May 17, 2021 at 9:08:07 AM UTC-7 dim...@gmail.com wrote: >> >>> >>> >>> On Mon, 17 May 2021, 16:42 Richard_L, <rich...@lozestech.com> wrote: >>> >>>> What I find in common for the 7 failures is: >>>> "/home/rllozes/sage-9.3/local/lib/libopenblas.so.0(zgemm_kernel_n+0x9d)[0x7f2b0f8c549d]", >>>> >>>> and further >>>> "0x00007f2b0f8c549d in zgemm_kernel_n () at >>>> ../kernel/x86_64/zgemm_kernel_1x4_nehalem.S:214" >>>> indicating an openblas error. >>>> The install.log shows that we built openblas with correct detection of >>>> AVX (yes), AVX2 (no), and AVX-512 (no), which was once a common root cause >>>> for openblas failures (ca. 2012). OTOH, the system already supplies an >>>> openblas in /usr/lib64, which configure did not find. >>>> >>> >>> you might need the development headers etc for system openblas installed. >>> Or, perhaps, they are installed, but pkg-config does not know about it. >>> >>> Do you have system wide pkg-config installed? >>> >>> >>> >>> >>> >>>> >>>> On Monday, May 17, 2021 at 2:32:59 AM UTC-7 dim...@gmail.com wrote: >>>> >>>>> On Sun, May 16, 2021 at 4:26 PM Richard_L <rich...@lozestech.com> >>>>> wrote: >>>>> > >>>>> > 'make ptestlong' gave the following error summary on a new build >>>>> from source: >>>>> > >>>>> > >>>>> ---------------------------------------------------------------------- >>>>> > sage -t --long --warn-long 103.3 --random-seed=0 >>>>> src/sage/calculus/riemann.pyx # Killed due to illegal instruction >>>>> >>>>> >>>>> this kind of error indicates that a component is using CPU >>>>> instructions not understood by your CPU. >>>>> It could be either something you installed from the system, or >>>>> something that you built from source as a part of Sage. >>>>> You can look in logs/ptestlong.log to locate more precise errors/stack >>>>> dumps. >>>>> >>>>> >>>>> >>>>> >>>>> > sage -t --long --warn-long 103.3 --random-seed=0 >>>>> src/sage/schemes/riemann_surfaces/riemann_surface.py # Killed due to >>>>> illegal instruction >>>>> > sage -t --long --warn-long 103.3 --random-seed=0 >>>>> src/sage/matrix/matrix2.pyx # Killed due to illegal instruction >>>>> > sage -t --long --warn-long 103.3 --random-seed=0 >>>>> src/sage/misc/functional.py # Killed due to illegal instruction >>>>> > sage -t --long --warn-long 103.3 --random-seed=0 >>>>> src/sage/calculus/interpolators.pyx # Killed due to illegal instruction >>>>> > sage -t --long --warn-long 103.3 --random-seed=0 >>>>> src/sage/matrix/matrix_double_dense.pyx # Killed due to illegal >>>>> instruction >>>>> > sage -t --long --warn-long 103.3 --random-seed=0 >>>>> src/sage/schemes/affine/affine_homset.py # Killed due to illegal >>>>> instruction >>>>> > sage -t --long --warn-long 103.3 --random-seed=0 >>>>> src/sage/modular/modform/numerical.py # Killed due to illegal instruction >>>>> > >>>>> ---------------------------------------------------------------------- >>>>> > Total time for all tests: 3514.1 seconds >>>>> > cpu time: 22425.1 seconds >>>>> > cumulative wall time: 27133.4 seconds >>>>> > make: *** [Makefile:201: ptestlong] Error 16 >>>>> > >>>>> > I allowed the package to build Python 3.9.2. The OS is openSUSE Leap >>>>> 15.2. 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