Merge branch 'refactorone' of chef.heaplab.deib.polimi.it:nnicolosi/Raptor into refactorone

This commit is contained in:
ilgeco
2026-05-27 14:32:51 +02:00
3 changed files with 95 additions and 11 deletions
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.claude
.codex
AGENTS.md
CMakeUserPresets.json
build
build_release
cmake-build-debug
cmake-build-release
build_*
compile.sh
pimcomp_utils/*
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- Always read the full README.md before doing anything.
- Build commands:
- `cmake --build ./build_release --target onnx-mlir -j 30`
- `cmake --build ./build_debug --target onnx-mlir -j 30`
- Never use `ninja` directly: it bypasses cmake's configuration and invalidates the build cache.
# Code changes
- Keep changes minimal and localized to the relevant parts of the code.
- Preserve the existing naming conventions and coding style used in the surrounding code.
- Keep code easy to read, well organized, and suitable for future extensibility. A function must not be longer than
200/250 lines for readability and cognitive complexity.
- Prefer clear naming and structure over comments. Add comments only when they materially improve clarity.
- Do not rename symbols, move files, or restructure modules unless that is necessary for the requested change.
# Working style
- Infer style and conventions from the existing code before introducing new patterns.
- When several implementation options are possible, prefer the simplest one that fits the current architecture and
minimizes churn.
- Avoid broad refactors unless I explicitly ask for them.
# Responses
- When showing code in chat, make it easy to copy-paste into the codebase.
- Keep outputs focused on the changed parts.
- At the end of the response, briefly list any bad practices, mistakes, or cleaner alternatives you noticed, separate
from the main solution.
# Guidelines
## 1. Think Before Coding
**Don't assume. Don't hide confusion. Surface tradeoffs.**
Before implementing:
- State your assumptions explicitly. If uncertain, ask.
- If multiple interpretations exist, present them - don't pick silently.
- If a simpler approach exists, say so. Push back when warranted.
- If something is unclear, stop. Name what's confusing. Ask.
## 2. Simplicity First
**Minimum code that solves the problem. Nothing speculative.**
- No features beyond what was asked.
- No error handling for impossible scenarios.
- If you write 200 lines and it could be 50, rewrite it.
Ask yourself: "Would a senior engineer say this is overcomplicated?" If yes, simplify.
## 3. Surgical Changes
**Touch only what you must. Clean up only your own mess.**
When editing existing code:
- Don't "improve" adjacent code, comments, or formatting.
- Don't refactor things that aren't broken.
- Match existing style, even if you'd do it differently.
- If you notice unrelated dead code, mention it - don't delete it.
When your changes create orphans:
- Remove imports/variables/functions that YOUR changes made unused.
- Don't remove pre-existing dead code unless asked, but mention it.
The test: Every changed line should trace directly to the user's request.
## 4. Goal-Driven Execution
**Define success criteria. Loop until verified.**
Transform tasks into verifiable goals:
- "Add validation" → "Write tests for invalid inputs, then make them pass"
- "Fix the bug" → "Write a test that reproduces it, then make it pass"
- "Refactor X" → "Ensure tests pass before and after"
For multi-step tasks, state a brief plan:
```
1. [Step] → verify: [check]
2. [Step] → verify: [check]
3. [Step] → verify: [check]
```
Strong success criteria let you loop independently. Weak criteria ("make it work") require constant clarification.
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@@ -43,7 +43,7 @@ framework-level details).
High-level lowering flow:
```
ONNX-MLIR ──► Spatial ──► Pim (tensor) ──► Pim (bufferized) ──► PIM JSON
ONNX-MLIR ──► Spatial ──► Pim (tensor) ──► Pim (bufferized) ──► PIM code
```
1. **ONNX → Spatial** (`src/PIM/Conversion/ONNXToSpatial`).
@@ -55,7 +55,7 @@ ONNX-MLIR ──► Spatial ──► Pim (tensor) ──► Pim (bufferized)
Conversion patterns are split by op family under
`Conversion/ONNXToSpatial/Patterns/{Math,NN,Tensor}` (Conv, Gemm, MatMul,
Elementwise, ReduceMean, Pool, Relu, Sigmoid, Softmax, Concat, Gather,
Reshape, Resize, Split).
Reshape, Resize, Split, etc...).
2. **Spatial → Pim** (`src/PIM/Conversion/SpatialToPim`).
Lowers Spatial to the `pim` dialect (`src/PIM/Dialect/Pim`), which
@@ -63,10 +63,7 @@ ONNX-MLIR ──► Spatial ──► Pim (tensor) ──► Pim (bufferized)
(`pim.send` / `pim.receive`), halts, and crossbar-level operations.
3. **Merge compute nodes** (`src/PIM/Dialect/Spatial/Transforms/MergeComputeNodes`).
A DCP-inspired heuristic (Dynamic Critical Path — see the original
scheduling paper by Kwok & Ahmad,
[DCP-eScience2007](https://clouds.cis.unimelb.edu.au/papers/DCP-eScience2007.pdf))
that coarsens the virtual node graph and decides how to group compute
A PEFT heuristic that coarsens the virtual node graph and decides how to group compute
nodes onto cores. Our implementation is only DCP-*inspired*: it is a
heuristic with different assumptions from the paper (different cost
model, constraints from crossbar capacity / core resources, and a