Use cuda::proclaim_return_type on device lambda.#2048
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divyegala
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| return thrust::reduce( | ||
| thrust_policy, | ||
| buffer_.data(), | ||
| buffer_.data() + buffer_.size(), | ||
| value_type{0}, | ||
| cuda::proclaim_return_type<value_type>([] __device__(auto left, auto right) { | ||
| auto abs_left = left > 0 ? left : -left; | ||
| auto abs_right = right > 0 ? right : -right; | ||
| return abs_left + abs_right; | ||
| })); |
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Is this the only place in RAFT that uses a device lambda along with thrust?
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As far as I can tell, yes. RAFT builds with only this change.
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I built cuGraph successfully with only this change, too.
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|
/merge |
divyegala
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Dec 8, 2023
This was referenced Dec 8, 2023
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This PR updates RAFT to CCCL 2.2.0. Do not merge until all of RAPIDS is ready to update. Depends on #2048. Replaces #1464. Authors: - Bradley Dice (https://github.com/bdice) Approvers: - Vyas Ramasubramani (https://github.com/vyasr) - Robert Maynard (https://github.com/robertmaynard) URL: #2049
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This PR updates RAFT to CCCL 2.2.0. Do not merge until all of RAPIDS is ready to update. Depends on NVIDIA#2048. Replaces NVIDIA#1464. Authors: - Bradley Dice (https://github.com/bdice) Approvers: - Vyas Ramasubramani (https://github.com/vyasr) - Robert Maynard (https://github.com/robertmaynard) URL: NVIDIA#2049
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This PR is needed to change the one piece of RAFT that requires `cuda::proclaim_return_type` for compatibility with CCCL (Thrust) 2.2.0. This pulls out part of the diff of NVIDIA#1464, which we will be able to close in favor of a new PR after this is merged. Authors: - Bradley Dice (https://github.com/bdice) Approvers: - Divye Gala (https://github.com/divyegala) URL: NVIDIA#2048
loulankxh
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Oct 14, 2025
This PR updates RAFT to CCCL 2.2.0. Do not merge until all of RAPIDS is ready to update. Depends on NVIDIA#2048. Replaces NVIDIA#1464. Authors: - Bradley Dice (https://github.com/bdice) Approvers: - Vyas Ramasubramani (https://github.com/vyasr) - Robert Maynard (https://github.com/robertmaynard) URL: NVIDIA#2049
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This PR is needed to change the one piece of RAFT that requires
cuda::proclaim_return_typefor compatibility with CCCL (Thrust) 2.2.0. This pulls out part of the diff of #1464, which we will be able to close in favor of a new PR after this is merged.