[build] nightly build is down due to gcc 8.5.0 does not fully support c++17

[Rhett-Ying]

🔨Work Item

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Project tracker: https://github.com/orgs/dmlc/projects/2

Description

For now, we're using nvidia/cuda:12.1.0-cudnn8-devel-ubi8 docker base image for building. And the default gcc version is 8.5.0. When building with it, below error is thrown:

/opt/dgl/graphbolt/src/cuda/extension/unique_and_compact_map.cu(151): error: namespace "std" has no member "exclusive_scan" 

This API is introduced by #7239

Depending work items or issues

[Rhett-Ying]

@mfbalin FYI

[Rhett-Ying]

@mfbalin could we replace it with std::partial_sum? how much is the performance downgrade?

[Rhett-Ying]

or any counterpart from torch? https://github.com/pytorch/pytorch/blob/bb04f3f66a5b92f0bed3712689f57774f00db349/aten/src/ATen/cuda/cub.cuh#L303

[mfbalin]

Let's replace it with partial_sum, opening a quick PR.

[mfbalin]

I was eagerly waiting for today's regression results. When do you think the next report is going to go out?

[Rhett-Ying]

regression build is not affected by this issue. But regression build is down last night due to other issue. I've fixed it and report is supposed to be ready tmr, around 1 o'clock AM, UTC.