feat(pipeline): Zero Bubble V Shape Memory Efficient Editon

[li126com]

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Motivation

重排ZBV以消除cool down阶段由于W延迟计算造成的显存累计开销。此版本与overlap grad , param以及isp overlap均兼容。

ZBV origin：

cooldown rearrange：
本版本在optimizer step不使用post validation

性能及显存

配置：internlm2-7B, micro_num=8, dp=2, pp=4, overlap sync grad.
显卡：8卡，A800

1f1b:
tgs = 2565

zbv:
tgs = 3081

精度测试

pp4:

dp2_tp2_pp4_msp:

dp2_tp2_pp4_wp2_isp_overlap

BC-breaking (Optional)

Does the modification introduce changes that break the backward compatibility of the downstream repositories?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here and update the documentation.

Checklist

Before PR:

• Pre-commit or other linting tools are used to fix the potential lint issues.
• Bug fixes are fully covered by unit tests, the case that causes the bug should be added in the unit tests.
• The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
• The documentation has been modified accordingly, like docstring or example tutorials.

After PR:

• If the modification has potential influence on downstream or other related projects, this PR should be tested with those projects.
• CLA has been signed and all committers have signed the CLA in this PR.