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What does this PR do?

This PR introduces two changes:

  1. Removal of redundant default parameters: Default optimizer values are already set in the .yaml configuration file. Defining them again in other files is redundant and can cause confusion for users.

  2. Alignment of warm-up step logic: Changed the condition from num_warmup_steps < 0 to num_warmup_steps <= 0. This aligns the code with the documentation in the YAML file and matches the implementation in Megatron.
    https://github.com/volcengine/verl/blob/main/verl/trainer/config/actor/actor.yaml#L132

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Code Review

This pull request aims to remove redundant default parameters and align warm-up step logic. The changes generally improve code clarity and consistency by relying on configuration files and dataclasses for default values. However, I've identified a critical bug in verl/utils/megatron/optimizer.py where an incorrect attribute is accessed, which would lead to a runtime error. The rest of the changes look good and correctly align with the intended logic.

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
@vermouth1992
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Could you rebase main and run CI again?

vermouth1992 and others added 2 commits September 23, 2025 16:53
### What does this PR do?

- As title

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### What does this PR do?

move log rollout logic to one standalone function that can be re-used in
other trainers such as `DAPORayTrainer` etc and avoid duplicated code.

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@vermouth1992 vermouth1992 merged commit 5150686 into main Sep 23, 2025
72 of 74 checks passed
@vermouth1992 vermouth1992 deleted the optim_args branch September 23, 2025 10:49
masoudhashemi pushed a commit to masoudhashemi/verl that referenced this pull request Oct 19, 2025
### What does this PR do?
This PR introduces two changes:

1. Removal of redundant default parameters: Default optimizer values are
already set in the .yaml configuration file. Defining them again in
other files is redundant and can cause confusion for users.

2. Alignment of warm-up step logic: Changed the condition from
`num_warmup_steps < 0` to `num_warmup_steps <= 0`. This aligns the code
with the documentation in the YAML file and matches the implementation
in Megatron.

https://github.com/volcengine/verl/blob/main/verl/trainer/config/actor/actor.yaml#L132

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Chi Zhang <[email protected]>
Co-authored-by: Changlong Yu <[email protected]>
techkang added a commit to techkang/verl that referenced this pull request Oct 31, 2025
### What does this PR do?
This PR introduces two changes:

1. Removal of redundant default parameters: Default optimizer values are
already set in the .yaml configuration file. Defining them again in
other files is redundant and can cause confusion for users.

2. Alignment of warm-up step logic: Changed the condition from
`num_warmup_steps < 0` to `num_warmup_steps <= 0`. This aligns the code
with the documentation in the YAML file and matches the implementation
in Megatron.

https://github.com/volcengine/verl/blob/main/verl/trainer/config/actor/actor.yaml#L132

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Chi Zhang <[email protected]>
Co-authored-by: Changlong Yu <[email protected]>
mtian8 pushed a commit to mtian8/verl that referenced this pull request Nov 1, 2025
### What does this PR do?
This PR introduces two changes:

1. Removal of redundant default parameters: Default optimizer values are
already set in the .yaml configuration file. Defining them again in
other files is redundant and can cause confusion for users.

2. Alignment of warm-up step logic: Changed the condition from
`num_warmup_steps < 0` to `num_warmup_steps <= 0`. This aligns the code
with the documentation in the YAML file and matches the implementation
in Megatron.

https://github.com/volcengine/verl/blob/main/verl/trainer/config/actor/actor.yaml#L132

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Chi Zhang <[email protected]>
Co-authored-by: Changlong Yu <[email protected]>
wangboxiong320 pushed a commit to wangboxiong320/verl that referenced this pull request Nov 1, 2025
### What does this PR do?
This PR introduces two changes:

1. Removal of redundant default parameters: Default optimizer values are
already set in the .yaml configuration file. Defining them again in
other files is redundant and can cause confusion for users.

2. Alignment of warm-up step logic: Changed the condition from
`num_warmup_steps < 0` to `num_warmup_steps <= 0`. This aligns the code
with the documentation in the YAML file and matches the implementation
in Megatron.

https://github.com/volcengine/verl/blob/main/verl/trainer/config/actor/actor.yaml#L132

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Chi Zhang <[email protected]>
Co-authored-by: Changlong Yu <[email protected]>
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4 participants