Move to LLVM 7

[seibert]

LLVM 7.0.0 has been tagged and should be posted any day now.

[iosonofabio]

Hi guys,
sorry I'm a bit confused by the relationship between this repo and the cmsdist reference. Is there any plan to get numba/llvmlite to support LLVM7?
Thank you

[fwyzard]

Hi Fabio,
we currently do not have plans to work on llvmlite itself, at least as far as I know.

cmssw uses both llvm/clang and llvmlite/numba; I am pushing to adopt llvm 7, but before we can can switch the production branch we need llvmlite to support it as well; I added a reference to this issue so our release managers could track the developments here :-)

Sorry for the confusion,
.Andrea

[seibert]

As an update: This should be coming sooner now that the LLVM patches we rely on have been ported to LLVM 7 successfully.

[seibert]

(also, as a former particle physicist, I'd love to know what CMS does with Numba...)

[amit112amit]

Arch Linux ( and Antergos ) have moved to llvm 7.0. Kindly update the 'python-llvmlite' AUR package when this is done.

[stuartarchibald]

Reminder to add support for perf event listeners following #394.

[stuartarchibald]

PRs so far:

• Move to LLVM 7 Move to LLVM 7 #404 [Merged]
• Throttle parallel make thread count on armv7l [WIP] Throttle thread count for llvm build on armv7l. #407 [Merged]
• Native cmake for armv7l Use native cmake on armv7l #409 [Merged]
• Re-enable SVML (bug prevented it being detected on initial move to llvm 7) Update LLVM 7 config for SVML. #408 [Merged]
• Disable SVML again in Temporarily disable SVML. #410 due to Broken SVML autovectorization for some of math functions conda-forge/llvmdev-feedstock#52

Numba PR for update to LLVM 7: numba/numba#3437

[handicraftsman]

Yeah, moving to llvm 7 would be nice - llvm 7 is available under llvm name in archlinux repositories, and it conflicts with llvm6 package

[seibert]

note that due to some test failures with the new LLVM (upgrading LLVM always seems to break something) we've backed out our LLVM 7 patches while we continue to work on the issue. We're still hoping for the release at the end of November to be based on LLVM 7.

[seibert]

Closing as this was completed a while ago.