ywkang
62fb01ae18
Add reverse path response latency for PE DMA and PE_CPU→M_CPU
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Model fabric response hop latency for PE-internal operations:
- HBM_CTRL sends PeDmaMsg response on reverse path instead of direct done signal
- PE_CPU sends ResponseMsg via NOC→M_CPU on kernel completion
- Add NOC→PE_DMA and PE_CPU→NOC edges in topology builder
- Make HBM BW test assertions dynamic based on topology efficiency
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com >
2026-03-20 15:40:56 -07:00
ywkang
8b5afef5eb
remove temp files
2026-03-20 00:10:11 -07:00
ywkang
0d89c5c074
Updated tasks.json to set the working directory and fixed '[dev]' ( escape character issue )
2026-03-20 00:03:58 -07:00
d40d0cceea
updated venv:create to use python3 instead of python
2026-03-19 23:55:41 -07:00
ywkang
dcbc41571f
Add web topology viewer with hot path visualization
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- FastAPI backend (server.py) with REST API + WebSocket for event streaming
- SVG-based topology viewer (index.html) with SIP/CUBE/PE drill-down views
- Event logging infrastructure (event_log.py) generating events from real
probe cases (H2D/D2H/PE-DMA) and bench workloads (QKV GEMM single/multi-PE)
- Timeline replay engine with play/pause, speed control, and scrubbing
- Workload selector dropdown grouped by category (Probe/Bench)
- CLI entry points: kernbench web, ./kernbench wrapper scripts
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-03-19 03:19:19 -07:00
ywkang
fc6abbc8ee
Add CHANGES.md, README, update SPEC/ADRs for release 2
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- CHANGES.md: detailed changelog for release 1 and 2
- README.md: full project docs with install, probe, run, test usage
- SPEC.md: add ADR-0014~0017 references, update R7 for pcie_ep endpoint
- ADR-0003: update NOC description to reference ADR-0017
- ADR-0004: add HBM efficiency factor (0.8) to BW guarantee contract
- ADR-0014: status Proposed -> Accepted
- ADR-0015: update D4 to M_CPU bypass for Memory R/W, add ADR-0016/0017 links
- ADR-0016 (new): IOChiplet NOC and memory data path
- ADR-0017 (new): Cube NOC 2D mesh architecture
- Fix MD lint warnings (unfenced code blocks) across all docs
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-03-19 01:43:15 -07:00
ywkang
d75da439c6
Add probe CLI improvements, D2H read, UCIe/HBM tuning, BW sweep
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- Probe CLI: restructured output (tables first, routes below), per-hop
timestamps, split cross-cube into best/worst cases, D2H read section
- UCIe overhead: 1ns -> 8ns per port (16ns per crossing) to fix
cross-cube-best < cross-half latency inversion
- HBM efficiency: added efficiency=0.8 factor to hbm_ctrl, reducing
effective BW from 256 to 204.8 GB/s
- Multi-size BW sweep: saturation tables (4KB-1MB) for all probe cases
- Probe default data size: 4KB -> 32KB for more realistic measurements
- IOChiplet NOC + D2H topology and tests
- NOC mesh, xbar, BW occupancy components and tests
- Cube mesh visualization diagram
278 tests pass.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-03-19 01:16:18 -07:00
ywkang
6f43807900
commit - release 1
2026-03-18 11:47:48 -07:00
ywkang
Yangwook Kang