On 11/20/2017 09:15 AM, Kenneth Hoste wrote: > Hi Åke, > > Can we somehow integrate these FFTW tests in the sanity check that > EasyBuild runs for FFTW?
Those tests are already part of the FFTW build sanity check. That's why it fails to build. > > regards, > > Kenneth > > On 20/11/2017 07:56, Åke Sandgren wrote: >> 2018.0.128 miscompiles FFTW on KNL (i.e. AVX512) and i suspect it will >> miscompile FFTW on skylake too. >> Since that is a fairly well tested code and all the previous versions >> (and 2018.1.163) has no problems with FFTW I would advise people to stay >> away from it. >> >> And more so since 2018.0 and older also have problems with the glibc >> from CentOS 7.4, which 2018.1 has fixed. >> >> >> (Damian wanted some more details so here goes) >> >> As for FFTW, Intel 2018.0.128, intermittently segfaults on the single >> precision non-threaded basic test, and always produces incorrect >> numerical results on the single precision 2-thread basic test. >> >> This is with the default -O2 -xHost flags that the easybuild recipe >> uses. Also verified with a manual build. >> >> Just -O2 alone doesn't show any problems, but then it would be fairly >> useless since FFTW is heavy on the AVX512 side. >> >> And since it causes the numerical errors (and the intermittent >> segfaults) I would classify it as a brown-paperbag-release. I.e. don't >> ever use it. >> >> I never bothered testing double precision. >> >> On 11/20/2017 07:23 AM, Alvarez, Damian wrote: >>> Hey Ake, >>> >>> Could you elaborate on that? I mean, I do expect the compiler to have >>> bugs, but we haven’t seen anything particularly bad so far, just >>> these 2 things: >>> >>> -The issue with glibc in CentOS 7.4 >>> -An internal compiler error when optimizing certain loops in PETSc >>> with complex numbers. >>> >>> Is there any particular bug we should be aware of? >>> >>> Damian >>> >>> On 19/11/17 00:23, "easybuild-requ...@lists.ugent.be on behalf of Åke >>> Sandgren" <easybuild-requ...@lists.ugent.be on behalf of >>> ake.sandg...@hpc2n.umu.se> wrote: >>> >>> I strongly advise against using the intel 2018.0.128 compiler. >>> It has bugs! >>> >>> 2018.1.163 works much better. >>> >>> On 11/18/2017 10:13 AM, Kenneth Hoste wrote: >>> > Hi all, >>> > >>> > On 17/11/2017 11:29, Holger Angenent wrote: >>> >> On 13.11.2017 13:28, Joachim Hein wrote: >>> >>> Hi Holger >>> >> Hi Joachim and Kenneth. >>> >>> >>> >>> Thanks for this. >>> >>> >>> >>> Kenneth, what are chances to get an emergency EB 3.4.1b or >>> EB 3.4.2 >>> >>> that contains perhaps intel 2018 only. We are running slurm >>> and >>> >>> currently rebuilding the software with intel 2018 or moving >>> to a >>> >>> newer libc as suggested by Alexandre from FZJ seem our best >>> bets to >>> >>> get out of the issues. >>> >>> >>> >>> If we go for a rebuilding marathon, it would be a lot >>> easier, if >>> >>> intel 2018 would sit in EB and not in a development branch >>> or PR. >>> >> By the way, we are speaking about this PR: >>> >> https://github.com/easybuilders/easybuild-easyconfigs/pull/5129 >>> > >>> > I opened a PR for the 2018 update 1 versions of Intel >>> compilers, Intel >>> > MPI & Intel MKL a couple of days ago, see >>> > >>> https://github.com/easybuilders/easybuild-easyconfigs/pull/5345; it's >>> > currently awaiting review/merging. >>> > >>> > I'm up for doing a new EasyBuild release in the coming days, >>> if I can >>> > find the time for it that is, things are quite crazy the last >>> couple of >>> > weeks... >>> > >>> > >>> > From the Intel article [1], there is a workaround that already >>> works >>> > with intel/2017b (which includes the 2017 update 4 compilers), >>> i.e. to >>> > build with -fPIC, or in EasyBuild terms, enable the 'pic' >>> toolchain >>> > option in the easyconfig file. >>> > This workaround is also required with the initial 2018 release >>> > (intel/2018.00), but no longer necessary with 2018 update 1 >>> > (intel/2018.01, see PR #5129). >>> > >>> > The -fPIC workaround has proven to circumvent this issue in a >>> recent >>> > pull request for ABINIT, see >>> > https://github.com/easybuilders/easybuild-easyconfigs/pull/5251. >>> > >>> > >>> > regards, >>> > >>> > Kenneth >>> >>> >>> >>> Best wishes >>> >>> Joachim >>> >> Best, >>> >> Holger >>> >>> >>> >>>> On 13 Nov 2017, at 01:17, Holger Angenent >>> >>>> <holger.angen...@uni-muenster.de >>> >>>> <mailto:holger.angen...@uni-muenster.de>> wrote: >>> >>>> >>> >>>> On 12.11.2017 20:59, Joachim Hein wrote: >>> >>>>> We got bitten by: >>> >>>>> >>> https://software.intel.com/en-us/articles/inconsistent-program-behavior-on-red-hat-enterprise-linux-74-if-compiled-with-intel >>> >>> >>>>> >>> >>>>> >>> >>>>> We are running CentOS 7.4. Many of our intel build apps >>> are not >>> >>>>> working any longer. >>> >>>>> >>> >>>>> Best wishes >>> >>>>> Joachim >>> >>>>> >>> >>>>> Sent from my nanoPad >>> >>>> >>> >>>> We are also aware of this issue. Since Intel 2018 should >>> solve this >>> >>>> bug, we are building as many modules as we can for the >>> intel-2018 >>> >>>> toolchain. (see for example >>> >>>> >>> https://github.com/easybuilders/easybuild-easyconfigs/pull/5291) As >>> >>>> far as I know, they will be part of the 3.5.0 EasyBuild >>> Release. >>> >>>> >>> >>>> The Travis builds are failing at the moment, but this >>> should only be >>> >>>> the case because intel-2018 is not in the official repo, >>> yet. We are >>> >>>> already using those modules in production. >>> >>>> >>> >>>> Best regards, >>> >>>> >>> >>>> Holger >>> >>>> >>> >>>> >>> >>> >>> >> >>> >> -- >>> >> Westfälische Wilhelms-Universität Münster (WWU) >>> >> Zentrum für Informationsverarbeitung (ZIV) >>> >> Röntgenstraße 7-13 >>> >> 48149 Münster >>> >> +49-(0)251-83 31569 >>> >> holger.angen...@uni-muenster.de >>> >> www.uni-muenster.de/ZIV >>> > >>> >>> -- >>> Ake Sandgren, HPC2N, Umea University, S-90187 Umea, Sweden >>> Internet: a...@hpc2n.umu.se Phone: +46 90 7866134 Fax: +46 >>> 90-580 14 >>> Mobile: +46 70 7716134 WWW: http://www.hpc2n.umu.se >>> >>> >>> >>> >>> ------------------------------------------------------------------------------------------------ >>> >>> ------------------------------------------------------------------------------------------------ >>> >>> Forschungszentrum Juelich GmbH >>> 52425 Juelich >>> Sitz der Gesellschaft: Juelich >>> Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 >>> Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher >>> Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender), >>> Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt, >>> Prof. Dr. Sebastian M. Schmidt >>> ------------------------------------------------------------------------------------------------ >>> >>> ------------------------------------------------------------------------------------------------ >>> >>> > -- Ake Sandgren, HPC2N, Umea University, S-90187 Umea, Sweden Internet: a...@hpc2n.umu.se Phone: +46 90 7866134 Fax: +46 90-580 14 Mobile: +46 70 7716134 WWW: http://www.hpc2n.umu.se
