function missing

[ywb2018]

i cannot find the defination of the function get_blend_from_list , anyone help?

[Advait251206]

get_blend_from_list does exist in Megatron-LM, but its location depends on the version/commit you're using. The function has been moved during refactoring, so searching in older documentation or different branches may not find it where you expect.

A good way to locate it is to search the repository:

git grep "def get_blend_from_list"

or

git grep "get_blend_from_list"

If the search returns nothing, then you're likely looking at a version where the function has either:

• Been renamed.
• Been moved to another utility module.
• Been removed and its logic inlined into the dataset-building code.

In recent versions of Megatron-LM, dataset blending utilities are typically found under modules such as:

megatron/core/datasets/

or

megatron/training/

If your code imports it like:

from xxx import get_blend_from_list

but the definition is missing, it's also possible that:

• You're using a different branch than the one the documentation refers to.
• Your local repository is incomplete or out of sync.
• The documentation is referring to an older commit where the function still existed.

If you can share:

• the commit hash (git rev-parse HEAD),
• the branch you're using,
• or the file that references get_blend_from_list,

it would be much easier to determine where the function went or what replaced it.

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