Commits March 2017

commits@lists.einsteintoolkit.org

3 participants
2 discussions

commit/EinsteinInitialData: rhaas80: Exact: fix integer dvision for Goedel spacetime
by Bitbucket 30 Mar '17

30 Mar '17

1 new commit in EinsteinInitialData: https://bitbucket.org/einsteintoolkit/einsteininitialdata/commits/eec2b89a3… Changeset: eec2b89a3b8e Branch: master User: rhaas80 Date: 2017-03-30 08:48:22+00:00 Summary: Exact: fix integer dvision for Goedel spacetime this produced incorrct values for gdxx setting it to 0 due to 1/2 = 0 Affected #: 1 file Repository URL: https://bitbucket.org/einsteintoolkit/einsteininitialdata/ -- This is a commit notification from bitbucket.org. You are receiving this because you have the service enabled, addressing the recipient of this email.

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Re: [Commits] meeting minutes for 2017-03-06
by Roland Haas 06 Mar '17

06 Mar '17

Hello all, > We quickly discussed the failing tests, and given that the option list > used > (https://bitbucket.org/ianhinder/cactusjenkins/raw/d7021a52bd83448db589b2346…) > is not using -ffast-math or -mmarch=native the working assumption is > that the occurrence of the failures is due to to an updated OS and > newer compiler. Erik asked if we had a docker container for the > Jenkins test slave, which we were not sure (there is a docker image at > https://bitbucket.org/ianhinder/et-jenkins-slave though it is not > clear if this is the one used). after the call of course I realized what may cause differences even without -march=native or -ffast-math: the explicit vectorization in thorn Vectors depends on the machine architecture so different hardware (eg AVX2) will produce different vector code and thus different answers. Though given the thorns affected (GRHydro and SphericalHarmonicRecon) I doubt that it is the thorn's code itself but rather eg McLachlan or the fftw library (for the PITTNull code). This *may* cause differences though a different compiler *will* cause differences (in particular a different Fortran compiler). Yours, Roland -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://keys.gnupg.net.

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Commits March 2017