Hi, did anyone found a working patch or workaround for the matrix issue when using OpenBLAS-0.3.1 ?
After a lot of try&error I couldn't pass the tests in https://github.com/eylenth/Openblas_matrix_issue when using https://github.com/easybuilders/easybuild-easyconfigs/blob/master/easybuild/easyconfigs/o/OpenBLAS/OpenBLAS-0.3.1-GCC-7.3.0-2.30.eb . No matter what patches, toolchainopts or buildopts I use (and I have tried few different combinations) . Is anyone able to pass the tests using openblas-0.3.1 ? I could pass the tests using openblas-0.3.5 but upgrading my foss/2018b toolchain would be quite messy because I use RPATH. The less intrusive solution for my users would be to be able to patch openblas-0.3.1 somehow but I couldn't find a working solution. Any suggestions? regards, Pablo. p.s. in a related topic, IMHO unless there is a proper workaround I would suggest to stop providing openblas-0.3.1 with easybuild. Right now we are distributing a broken library On Tue, May 7, 2019 at 6:34 PM Mikael Öhman <[email protected]> wrote: > Hi Thomas, > > I can also confirm these issues. I tried rebuilding OpenBLAS+R after the > fix in #7180, but I still saw the same problems. > Very large matrix-matrix multiplications randomly gave the wrong result. > Very large errors. The larger the matrix, the more frequent the errors. > > In the end, I compiled an intel-version (but I had to remove a few > extensions that didn't build) and removed my Foss version from our > installations. > > Perhaps it's related to hardware; I saw this on happen skylake servers. I > haven't had time to check if this > https://github.com/easybuilders/easybuild-easyconfigs/issues/8197 > also affects 0.3.1 > > Best regards, Mikael > > > On Tue, May 7, 2019 at 6:12 PM Thomas Eylenbosch < > [email protected]> wrote: > >> Hello >> >> >> >> Some of our end users reported a calculation issue with matrices when >> they are working with a foss/2018b module >> >> >> >> I reproduced this error with Python and R that are compiled with the >> foss/2018b toolchain, the output returns unexcepted results. >> >> Then I reproduced this error with Python and R that are compiled with the >> foss/2016b toolchain , then it gives me the expected behavior. >> >> >> >> You can reproduce this error with the following github repository: >> >> https://github.com/eylenth/Openblas_matrix_issue >> >> >> >> I have also tried to recompile the OpenBLAS-0.3.1-GCC-7.3.0-2.30.eb >> easyconfig file with “toolchainopts = {'vectorize': False}” ( cfr. >> https://github.com/easybuilders/easybuild-easyconfigs/issues/7180) >> >> But is still giving me unexpected behavior >> >> >> >> Can someone try to reproduce the error with the R/Python(foss/2018b) >> modules. Or can someone give me feedback on this? >> >> >> >> Thank you in advance. >> >> >> >> Met vriendelijke groet / Kind regards / Beste Grüße >> >> *Thomas Eylenbosch* >> >> *Ext: Gluo N.V.* >> >> >> >> BASF Agricultural Solutions Belgium NV >> >> Technologiepark 101 >> >> B-9052 Ghent (Zwijnaarde) >> >> BELGIUM >> >> E-mail: *[email protected] >> <[email protected]>* >> >> [image: cid:[email protected]] >> >> BASF Agricultural Solutions Belgium NV, Registered Office: 9052 Gent, >> Belgium >> >> Registration: RPR Gent: 0685.756.742 >> >> >> > -- Pablo Escobar López Linux/HPC systems engineer sciCORE, University of Basel SIB Swiss Institute of Bioinformatics
