hipdnn-superbuild

name	hipdnn-superbuild
description	Build hipDNN with providers via the repository superbuild. Faster than standalone since providers build alongside hipDNN in a single CMake invocation. On Windows, auto-runs the wheel-based ROCm setup if not already prepared.
argument-hint	[preset] [clean] [ROCM_PATH=<path>] [CLANG_PATH=<path>] [GPU_TARGETS=<arch>] [SHA=<commit>]
allowed-tools	Bash, Read, Grep, Glob

hipDNN Superbuild

Use this skill when the user asks to configure or build hipDNN through the rocm-libraries repository superbuild. It builds only; use hipdnn-superbuild-test for tests after a successful build.

Inputs

Infer options from the user request:

• Preset: default hipdnn-providers
• Clean rebuild: remove the build directory before configuring only when the user asks for a clean build and the active host policy permits deletion
• ROCm path: optional ROCM_PATH=<path> override; Linux defaults to /opt/rocm. On Windows, when omitted it is derived from the wheel venv (<venv>/Lib/site-packages/_rocm_sdk_devel, venv default D:/develop/latest_wheels)
• Clang path: optional Windows CLANG_PATH=<path> override; default D:/develop/dist/clang/bin. Clang is a prerequisite and is not provisioned; install it via scripts/windows/windows_build_setup.ps1 if missing
• GPU targets: optional GPU_TARGETS=<arch> override; Windows wheel setup defaults to gfx1151
• Wheel SHA: optional Windows SHA=<commit> to install pinned S3 staging wheels instead of nightlies
• Provision mode: Windows --provision auto|always|never; default auto provisions (creates the venv and pip-installs the ROCm SDK wheels) only when the SDK is missing, always forces a fresh wheel pull, never validates existing paths only
• Jobs: optional explicit parallelism only when the user requests it and active workspace instructions permit it; otherwise let Ninja auto-detect

Presets

Read CMakePresets.json from the repository root if exact preset contents matter. Common hipDNN presets:

Preset	Components
hipdnn	hipDNN only
hipdnn-integration-tests	hipDNN plus integration tests
hipdnn-providers	hipDNN, miopen-provider, hipblaslt-provider, integration tests
hipdnn-providers-all	All providers, including unsupported providers
miopen-provider	hipDNN, miopen-provider, integration tests
hipblaslt-provider	hipDNN, hipblaslt-provider, integration tests
hip-kernel-provider	hipDNN, hip-kernel-provider, integration tests
hipdnn-samples	hipDNN, supported providers, integration tests, samples

Workflow

1. Determine the repository root:

   git rev-parse --show-toplevel
   

2. Choose the build and log locations:

   • First honor any active workspace or repository instructions for artifact directories and build output safety.
   • If no such instructions exist, use BUILD_DIR=<repo-root>/build.
   • Keep full configure/build output in a log file and show only a short tail on failure.

3. Locate this skill's helper directory. Skills are host-level, not tied to a repo checkout — default to the scripts bundled with the skill you were invoked from (<skill-directory>/scripts), even when you are working inside a repo or worktree. Do NOT run the <repo-root>/projects/hipdnn/tools/ai/skills/hipdnn-superbuild/scripts copy just because a checkout is present: that copy can be a stale stub (on develop) or an unmerged in-progress version (on a feature branch). Use the source-checkout copy only when you are actively developing this skill itself and intend to exercise your in-progress edits, or when the invoked skill has no bundled scripts/ directory.

4. Resolve ROCm and Clang paths (Windows also provisions the ROCm SDK wheels when missing):

   python3 <scripts>/windows_rocm_setup.py --repo-root <repo-root> [--venv-path <path>] [--rocm-path <path>] [--clang-path <path>] [--gpu-targets <arch>] [--sha <commit>] [--provision auto|always|never]
   

   On Linux this echoes only provided overrides. On Windows it validates the wheel-based ROCm install and, when the SDK is absent (or --provision always), creates the venv and pip-installs the ROCm SDK wheels before printing KEY=VALUE lines on stdout. Progress goes to stderr, so stdout carries only the ROCM_PATH=/CLANG_PATH=/GPU_TARGETS= lines. Clang is a prerequisite and is not provisioned; a missing clang is reported as an error.

5. If a clean rebuild was requested, remove the selected build directory using the active host's normal approval/safety flow.

6. Configure from the repository root. Always bind the preset configure to the selected build directory so configure and build operate on the same tree:

   cmake --preset <preset> -B <build-dir> [extra -D options]
   

   Add -DROCM_PATH=<path> when a ROCm path is resolved or provided. On Windows also add -DCMAKE_PROGRAM_PATH=<clang-path> and -DGPU_TARGETS=<arch>.

7. Build with output redirected to a log:

   cmake --build <build-dir> > <log> 2>&1
   

   If explicit jobs are allowed and requested, pass them through to CMake/Ninja. On failure, report the log path and tail the last relevant lines.

8. If the build fails with a stale CMake cache error such as does not match the source, clean the selected build directory once, reconfigure with the same -B <build-dir> command, and retry once. Do not loop.

9. On Windows, always stage the wheel's amd_comgr.dll app-local into <build-dir>/bin after a successful build:

   python3 <scripts>/comgr_stage.py --rocm-bin <rocm-bin> --build-dir <build-dir> --verbose
   

   The AMD driver leaves an old amd_comgr.dll in C:\Windows\System32 that outranks the wheel's copy on PATH, so MIOpen otherwise loads stale comgr and can fail to JIT-build kernels at runtime (GCN-assembly Winograd solvers are the common example, but the mismatch is not limited to them). Do this on every Windows build rather than only when a specific kernel path is expected. The Win32 loader checks the executable's own directory before System32, so an app-local copy in <build-dir>/bin wins; PATH manipulation alone cannot. The helper compares the wheel comgr's PE version against any already-staged copy and skips the copy when the versions match (content-hash fallback when version metadata is absent), so it is cheap to re-run. This step is a no-op on Linux. The test runner (cmake_run.py) stages comgr on its own as well, so this build step is belt-and-suspenders that makes the app-local copy present immediately after build.

Report

Summarize:

• Preset used and components expected from that preset
• Build result
• Build directory and log path
• Windows ROCm, Clang, and GPU target values when applicable
• Next step: run hipdnn-superbuild-test if tests are needed

Notes

• scripts/windows_rocm_setup.py and scripts/comgr_stage.py are bundled in this skill so linked and copied installs work independently. windows_rocm_setup.py's Windows wheel-provisioning logic is a Python port of projects/hipdnn/scripts/windows/wheel_build_setup.ps1; that PowerShell script is left in place for interactive users and tools/dnn-benchmarking/setup.ps1. Keep the two in sync.
• comgr_stage.py only does work on Windows; it stages the wheel's amd_comgr.dll app-local and emits a diagnostic when C:\Windows\System32\amd_comgr.dll is present (it shadows PATH and is why the app-local copy is needed).
• Missing provider dependencies such as MIOpen or hipBLASLt still need to be installed or available through the selected ROCm environment.
• Product test execution is intentionally out of scope for this skill.