feat: add support for YX routing algorithm#193
Merged
Conversation
fischeti
reviewed
Jun 19, 2026
fischeti
approved these changes
Jun 19, 2026
fischeti
left a comment
Collaborator
There was a problem hiding this comment.
LGTM! Thanks for adding real support now. Just two minor things below
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
YX Routing Algorithm
Add YX routing algorithm support to FlooNoC. YX routing resolves the Y dimension first, then X—the inverse of XY routing. Both algorithms now support unicast, multicast, and reduction operations.
RTL
hw/floo_pkg.sv: AddedYXRoutingto enumhw/floo_route_select.sv: Unified XY/YX routing with separate unicast blocks; shared multicast instantiationhw/floo_route_xymask.sv: AddedRouteAlgoparameter; swapped dimension order for YX in masksFloogen:
floogen/model/network.py: Extended routing algorithm matching to accept YX; removed XY-only restriction for collective operationsCI:
.gitlab-ci.yml: Addedyxtocompile-meshesandrun-trafficmatrixfloogen/examples/axi_mesh_yx.ymlandnw_mesh_yx.ymlconfigs