---
id: pr-cccl-cub-7093
repo: NVIDIA/cccl
pr: 7093
title: Implement new tuning API arch dispatching
author: bernhardmgruber
date: '2026-01-09'
url: https://github.com/NVIDIA/cccl/pull/7093
source_category: upstream-code
architectures:
- sm100
tags:
- benchmark_test
- memory_primitives
- policy tuning
- scheduler_autotune
techniques:
- autotuning
- tile-scheduling
hardware_features: []
kernel_types:
- memory
- scheduler
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: 5177d2a4dcc0347083f0e931dce6c368746ca5d2
inclusion_reason: Treat scheduler/autotune configs as shape-specific evidence; replay benchmark shapes before generalizing.
changed_paths:
- cub/cub/detail/arch_dispatch.cuh
- cub/test/catch2_test_arch_dispatch.cu
artifact_dir: evidence/pull-bundles/cccl-cub/gh-7093
head_ref_oid: 3b769e0bd0f594077862cc70535b496e9f5a831b
---
# Implement new tuning API arch dispatching

- Repository: `NVIDIA/cccl`
- PR: [7093](https://github.com/NVIDIA/cccl/pull/7093)
- Decision: `Treat scheduler/autotune configs as shape-specific evidence; replay benchmark shapes before generalizing.`
- Reason: Treat scheduler/autotune configs as shape-specific evidence; replay benchmark shapes before generalizing.

## Changed Paths

- `cub/cub/detail/arch_dispatch.cuh`
- `cub/test/catch2_test_arch_dispatch.cu`

## Evidence Bundle

`evidence/pull-bundles/cccl-cub/gh-7093`
