[FEA]: Support sample_from_edges in PyG cuGraph Sampler

[alexbarghi-nv]

Is this a new feature, an improvement, or a change to existing functionality?

New Feature

How would you describe the priority of this feature request

High

Please provide a clear description of problem this feature solves

In order to support LinkLoader in PyG, the CuGraphSampler class needs to implement sample_from_edges. This is critical for supporting many GNN workflows. As of today, sample_from_nodes is implemented but not sample_from_edges.

Describe your ideal solution

Writing the sample_from_edges() method in CuGraphSampler.

Describe any alternatives you have considered

No response

Additional context

No response

Code of Conduct

• [X] I agree to follow cuGraph's Code of Conduct
• [X] I have searched the open feature requests and have found no duplicates for this feature request

Due: 1/24/2023 6:00 PM EST

[kingmesal]

Status update? @alexbarghi-nv

[alexbarghi-nv]

This is planned for 23.06