On Friday, 17 July 2020 at 10:25, Dave Love wrote: > [I found I hadn't sent this earlier, as I should have.] > > > https://fedoraproject.org/wiki/Changes/FlexiBLAS_as_BLAS/LAPACK_manager > > > > == Summary == > > BLAS/LAPACK packages will be compiled against the FlexiBLAS wrapper > > library, which will set OpenBLAS as system-wide default backend, and > > at the same time will provide a proper switching mechanism that > > currently Fedora lacks. > > > I oppose this (in favour of a different approach) from experience in > research computing system management, general support, and > implementation. It doesn't solve any problem I (have) had, as far as I > can tell, and looks as if it produces more. The licence seems to me to > rule it out a priori. Licence issues seem to have been cleared according to a message further down the thread. > The proposal doesn't justify things, including its dismissal of the > simple, clean alternative in similar to Debian's, with which I have some > experience. What exact alternative are you proposing, then? Carrying downstream patches to all BLAS/LAPACK implementations like Debian? I don't think that's sustainable. > (I don't know what the environment modules alternative is, since > that's one way of specifying the late binding.) Environment modules are user-selectable sets of environment variable values and require affected packages to be built in a specific way. https://docs.fedoraproject.org/en-US/packaging-guidelines/EnvironmentModules/ > BLAS isn't alone in presenting a substitute interface like that. It > works well with a heterogeneous HPC cluster where you want different > BLAS implementations on different nodes (think KNL, A64FX). I'm not sure what you mean here. What "substitute interface" are you talking about? > There will be hoops to jump through to get packages to configure when > they don't know about the library. >From what I understand from the proposal, FlexiBLAS looks like vanilla BLAS and LAPACK to the consumers. No hoop jumping required. > If I want to use a library that's > not included, I'm in the same position. It's not clear to me a priori > what happens if you try to use just BLIS even, given that OpenBLAS' >From what I understand, if you select BLIS, then it'll be used for all symbols it implements and netlib reference will be used for the rest. Regards, Dominik -- Fedora https://getfedora.org | RPM Fusion http://rpmfusion.org There should be a science of discontent. People need hard times and oppression to develop psychic muscles. -- from "Collected Sayings of Muad'Dib" by the Princess Irulan _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
