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Feature #2748

Power9 build system support

Added by Szilárd Páll 12 days ago. Updated 4 days ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
build system
Target version:
Difficulty:
uncategorized
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Description

The current build system code assumes that if the CPU is not Power7 than it is Power8 and as a result generates compiler flags targeting Power8 also on Power9.


Related issues

Related to GROMACS - Task #2699: Test POWER9New

History

#1 Updated by Szilárd Páll 12 days ago

#2 Updated by Szilárd Páll 12 days ago

Also note that gcc8 deprecates the -mdirect-move flag that we explicitly use; I'm not sure how important is it and can't find on how the current set of flags was picked.

#3 Updated by Mark Abraham 11 days ago

I have WIP that addresses this

#4 Updated by Szilárd Páll 11 days ago

Mark Abraham wrote:

I have WIP that addresses this

Ack. If you're already at it and you have some docs or info on what's recommended/best, can you please look into why are the current Power8 flags used and whether we should use them?

#5 Updated by Gerrit Code Review Bot 4 days ago

Gerrit received a related patchset '2' for Issue #2748.
Uploader: Mark Abraham ()
Change-Id: gromacs~release-2019~I0dc68c12701f041b702063692703cc2e15e96d8e
Gerrit URL: https://gerrit.gromacs.org/8717

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