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Posted to commits@tvm.apache.org by GitBox <gi...@apache.org> on 2022/05/07 00:28:53 UTC
[GitHub] [tvm-rfcs] denise-k opened a new pull request, #69: [RFC] Relay Next Roadmap
denise-k opened a new pull request, #69:
URL: https://github.com/apache/tvm-rfcs/pull/69
cc @tqchen @areusch
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[GitHub] [tvm-rfcs] tqchen commented on pull request #69: [RFC] Relay Next Roadmap
Posted by GitBox <gi...@apache.org>.
tqchen commented on PR #69:
URL: https://github.com/apache/tvm-rfcs/pull/69#issuecomment-1122343054
Thanks folks for discussions. Just want to chime in here. I think we all agree that the development and upstreaming flow should closely follow the normal process, which is A2 as being listed by @denise-k .
For emerging components being contributed to the community, it is certainly helpful for the community to have a roadmap that tracks things to be upstreamed to the codebase (that relates to contents to be upstreamed, which co-relates, but not depend on relax repo dev itself). To put it in another way, that the roadmap is independent from what/how things are being developed in relax, but more about what TVM community to expect in general as the change get checked in. The development in tvm itself still follows the normal RFC process in general (as being listed in A2).
Having a separate roadmap is also important as initial integration usually starts with experimental and have a minimum impact to the current flow. From the high-level, as a community we need a way to track and maintain a global picture of things that to come while being agile enough to help us continue reinvent ourselves.
This being said, I observe that one topic is about sequencing. e.g. should roadmap RFC be opened or merged at:
- T0: After the first upstreaming RFC is being proposed/merged.
- T1: After the initial upstreaming code itself is being merged.
- T2: After k-steps of PRs themselves.
As a community that welcomes constructive improvements, it is totally fair for a roadmap RFC to be opened early before T0, and taken into action after T0.
This would be a net positive for the community as there will be more informations being tracked, as long as we hold the clear standard that the items are about wants and things to come to `apache/tvm` repo (just like other roadmap items). This would also help us welcome the folks working on `relax`(many of whom are also part of our community) to bringing their effort to the tvm community.
From sequencing pov, we can wait until the first relax upstreaming RFC, i would warmly thank @denise-k for opening the RFC early and getting the community involved! Thank you!
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[GitHub] [tvm-rfcs] Mousius commented on pull request #69: [RFC] Relay Next Roadmap
Posted by GitBox <gi...@apache.org>.
Mousius commented on PR #69:
URL: https://github.com/apache/tvm-rfcs/pull/69#issuecomment-1129970926
> Thanks folks for discussions. Just want to chime in here. I think we all agree that the development and upstreaming flow should closely follow the normal process, which is A2 as being listed by @denise-k .
> To put it in another way, that the roadmap is independent from what/how things are being developed in relax, but more about what TVM community to expect in general as the change get checked in.
👍 I think we're agreed on the boundary here, Relax development activities, principles and practices aren't relevant to the `apache/tvm` project, whereas the integration of Relax into TVM is.
> Having a separate roadmap is also important as initial integration usually starts with experimental and have a minimum impact to the current flow. From the high-level, as a community we need a way to track and maintain a global picture of things to come and provide everyone with visibility (which are aside from technical contents which are handled by the technical RFCs opened through out the upstreaming process when needed).
One note here, as a growing community with many closely related projects, we have to be careful of tracking a project closely until it becomes relevant to TVM itself and follows the TVM processes. To be clear, on the specific issue of Relax, there's a clear intent to contribute this back into the mainline in a near future, which indicates it is mature enough to have a roadmap and we should definitely be moving in this direction.
> As a community that welcomes constructive improvements, it is totally fair for a roadmap RFC to be opened early before T0, and taken into action after T0.
> From sequencing pov, we can wait until the first relax upstreaming RFC(T0) to merge this, but i would warmly thank @denise-k for opening the RFC and getting the community involved early.
Given we've established the boundaries of the roadmap, do we need to wait for the first technical RFC? My concerns were only as outlined above, I don't want to hold up creating a roadmap and publicising the integration plan here as I believe that'd greatly aid the TVM community who haven't been a part of activities outside the Apache project.
@denise-k I would propose we scope this roadmap to the relevant RFCs, Tracking Issues and PRs relevant to the integration of Relax into TVM, which we can immediately create and fill with placeholders to track that activity?
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[GitHub] [tvm-rfcs] Mousius merged pull request #69: [RFC] Relay Next Roadmap
Posted by GitBox <gi...@apache.org>.
Mousius merged PR #69:
URL: https://github.com/apache/tvm-rfcs/pull/69
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[GitHub] [tvm-rfcs] denise-k commented on pull request #69: [RFC] Relay Next Roadmap
Posted by GitBox <gi...@apache.org>.
denise-k commented on PR #69:
URL: https://github.com/apache/tvm-rfcs/pull/69#issuecomment-1121455411
Thanks @Mousius for the great and insightful feedback.
Let's split your feedback into two concerns which we can address separately:
* **C1: Using TVM roadmaps to track work outside of TVM mainline**
The [guidelines](https://github.com/apache/tvm-rfcs/blob/main/rfcs/0050-roadmaps.md) for Roadmap RFCs outline that valid roadmap items are TVM pre-RFCs, TVM RFCs, TVM Github Task-Tracking Issues, and TVM Bugfixes.
If I'm interpreting your message correctly, your concern is that Relax's current approach towards development does not *yet* utilize any of these task tracking mechanisms.
* **C2: Relax upstreaming efforts and timeline**
Currently, the Relax Roadmap RFC is vague about Relax's development practices, saying:
> This proposed roadmap is intended to track the Relax project as it evolves
The vague wording here makes it sound like the desire is to track Relax development in `tlcpack/relax` in a TVM roadmap, which is specifically why you mention *C1*.
Here are some actions which I believe address these concerns:
- [ ] **A1: In the Relax Roadmap RFC, clarify the scope of the roadmap (actionable in this PR)**
This roadmap will track (in approximate chronological order):
- RFCs that the Relax community has made for Relax
- The eventual (but yet-to-be-defined) upstreaming process of Relax functionalities to TVM mainline
- The ongoing efforts to improve Relax capabilities in TVM mainline, after initial upstreaming.
- [ ] **A2: Propose a set of RFCs for upstreaming Relax functionalities to TVM mainline (actionable by the Relax community)**
Yuchen and team are working on a set of RFCs to move Relax components to mainline TVM. These RFCs should eventually be tracked in the Relax Roadmap.
- [ ] **A3: Propose to move Relax development to TVM mainline (actionable by the Relax community)**
As the Relax project matures, and the capabilities of Relax are moved into TVM mainline, it will eventually make sense to move all of Relax's development to TVM mainline. Still, we expect that there will be a long road ahead of improvements to Relax even post-upstreaming. This work should eventually also be tracked in the Relax Roadmap.
Let me know if this sounds right.
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[GitHub] [tvm-rfcs] denise-k commented on pull request #69: [RFC] Relay Next Roadmap
Posted by GitBox <gi...@apache.org>.
denise-k commented on PR #69:
URL: https://github.com/apache/tvm-rfcs/pull/69#issuecomment-1130212165
Thanks @Mousius, I'm aligned with the above and I've made a couple of quick updates to try and address your comments. Please note that I'm out of the office this week, so my responses may be delayed. I have asked Yuchen to shepherd this PR while I'm out.
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[GitHub] [tvm-rfcs] Mousius commented on pull request #69: [RFC] Relay Next Roadmap
Posted by GitBox <gi...@apache.org>.
Mousius commented on PR #69:
URL: https://github.com/apache/tvm-rfcs/pull/69#issuecomment-1122263562
> If I'm interpreting your message correctly, your concern is that Relax's current approach towards development does not yet utilize any of these task tracking mechanisms.
Apologies, I'll clarify, there is no need for Relax to use any of TVMs development process, as it's an exploratory project in isolation and any pre-upstreaming part of the Relax roadmap is more useful to the Relax developers and should be maintained in the Relax repo.
Therefore, I would suggest that a Relax Roadmap within TVM would instead begin part way into:
> A1: In the Relax Roadmap RFC, clarify the scope of the roadmap
Out of scope would be `RFCs that the Relax community has made for Relax` as they are made purposefully for the development of Relax rather than TVM. TVM integration would begin with `The eventual (but yet-to-be-defined) upstreaming process of Relax functionalities to TVM mainline` which I believe is then:
> A2: Propose a set of RFCs for upstreaming Relax functionalities to TVM mainline
As that is when the integration work begins, this would then follow the normal TVM workflow for integrating a new feature into TVM with review within the TVM community for the RFCs and PRs. Once the initial integration work is concluded I think you're proposing for Relax work to continue within TVM, therefore the roadmapping required would be for `The ongoing efforts to improve Relax capabilities in TVM mainline, after initial upstreaming.` which is in line with:
> A3: Propose to move Relax development to TVM mainline
At which point we can figure out whether it still needs its own roadmap or whether it becomes a task on the Graph Computations and High-Level Optimizations roadmap. The Relax community would also be free to continue working in the fork and integrating into TVM as it makes sense to do so.
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