Frank
3a64c8f3dd
Correct stale and incorrect facts after exhaustive verification: - Dankclaw: NUMA node 0 = 31213 MB; disk 661G/1.1T/38%; vLLM 0.26.0 in /home/dank/vllm-rocm-venv (not vllm-env); clarify 96 GiB GPU-visible is a driver overcommit ceiling over 30 GiB physical (confirmed via sysfs mem_info_vram_total=103079215104) - Dankserver: disk 729G/140G free/84%; /mnt/entropy 910G free; active service is vLLM EngineCore (22 GB), not llama-server; CPU model Ryzen 7 7700X - index.md: Dankclaw 30GiB phys / 96GiB GPU-visible (was '61 GB unified'); add deployment topology mermaid diagram - vLLM defaults (from source): gpu_memory_utilization=0.92, max_num_seqs=128, swap_space removed (now --kv-offloading-size) across Overview/Index/RAM/Hybrid - Quantization: FP8 not native on Ampere (RTX 3090) or RDNA 3.5 (gfx1151); add per-model hardware quantization notes; AWQ/GPTQ limited on ROCm - Speculative decoding: add DFlash, DSpark, MTP, EAGLE3 to feature list - Confirm Qwen3.6-27B and Qwen3.6-35B-A3B specs are correct (HF-verified) - Production note: Dankclaw primary llama.cpp service runs ROCmFPX Ling-3.0-flash RocmFP4 MTP, not vLLM Qwen3.6-27B
84 lines
3.2 KiB
Markdown
84 lines
3.2 KiB
Markdown
# Dankclaw System Specs
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## Server Overview
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Dankclaw is an AMD APU server for vLLM inference. The host runs Ubuntu 26.04 with an AMD Ryzen AI MAX+ 395 Strix Halo APU. The APU uses unified memory — CPU and GPU share the same physical RAM pool.
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## Hardware Specifications
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### CPU
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| Property | Value |
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|----------|-------|
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| Model | AMD RYZEN AI MAX+ 395 w/ Radeon 8060S |
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| Architecture | x86_64 |
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| Cores | 16 (1 socket, 1 thread per core) |
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| Max MHz | 5187.50 |
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| Min MHz | 625.00 |
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| NUMA Nodes | 1 (node 0, 31213 MB) |
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### GPU (Integrated)
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| Property | Value |
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|----------|-------|
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| Model | AMD Radeon 8060S (Strix Halo) |
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| Device ID | 0x1586 |
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| Architecture | gfx1151 (Strix Halo) |
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| GPU-Visible Memory | 96 GiB (driver VRAM ceiling, overcommitted) |
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| Physical RAM | 30 GiB (shared CPU + GPU) |
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### ROCm
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| Property | Value |
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|----------|-------|
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| ROCk Module | Loaded |
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| Runtime Version | 1.18 |
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| ROCm Version | 7.2.4 (from AMD repos) |
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| Agent Name | AMD RYZEN AI MAX+ 395 w/ Radeon 8060S |
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| GPU Arch | gfx1151 (Strix Halo) |
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| GPU Global Memory | 96 GiB (driver-reported ceiling; physical is 30 GiB) |
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### Memory
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| Property | Value |
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|----------|-------|
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| System RAM | 30 GiB (shared CPU + GPU) |
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| GPU-Visible (ROCm) | 96 GiB (driver ceiling; ROCm pool 1 is 31962252 KB) |
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| Swap | 8.0 GiB |
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| /dev/shm | ~15 GiB (half of RAM) |
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### Storage
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| Filesystem | Size | Used | Avail | Use% |
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|------------|------|------|-------|------|
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| / (nvme0n1p2) | 1.9T | 661G | 1.1T | 38% |
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### OS and Software
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| Property | Value |
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|----------|-------|
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| OS | Ubuntu 26.04 LTS (Resolute Raccoon) |
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| Kernel | 7.0.0-29-generic |
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| Python | 3.14.4 (system), 3.12.13 (vLLM venv) |
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| vLLM | 0.26.0 (in `/home/dank/vllm-rocm-venv`, Python 3.12) |
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| uv | 0.12.2 |
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## VLLM Relevance
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- Unified memory eliminates separate VRAM limits. The GPU uses system RAM.
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- ROCm reports 96 GiB of GPU-visible memory (overcommitted). Physical RAM is 30 GiB. The driver reports a 96 GiB VRAM ceiling (`sysfs mem_info_vram_total`), but the machine has only 30.5 GB of physical RAM. vLLM sees the large number and will try to use it. Set `--gpu-memory-utilization` conservatively (0.80-0.85) to avoid OOM when the OS needs memory.
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- Without the ROCm VRAM patch, ROCm clamps APU memory to 50% (see `scripts/patches/rocm_patched.py` on the remote). The patch restores the real GTT ceiling minus an 8 GB safety margin.
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- Only 8 GiB swap. Modern vLLM uses `--kv-offloading-size` instead of the removed `--swap-space` flag.
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- The active llama.cpp service on Dankclaw runs on the ROCmFPX runtime (`/home/dank/GitPackages/ROCmFPX/build-strix-rocmfp4/bin/llama-server`) with the Ling-3.0-flash ROCmFP4 MTP model, not regular llama.cpp.
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- ROCm 7.2.4 from AMD repos. vLLM ROCm support requires ROCm 6.3+.
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- Python 3.14.4 is very new. vLLM ROCm wheels target Python 3.12. Use a Python 3.12 venv.
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- Radeon 8060S falls under Ryzen AI MAX series (gfx1151). vLLM lists this as supported.
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- 1.1 TB free disk space is ample for model storage.
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- `libmpi_cxx.so.40` is missing from the system. Install `openmpi-bin` or provide a workaround for torch MPI dependency.
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## See Also
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- [[VLLM Overview]]
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- [[Shared Memory Architecture Dankclaw]]
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- [[RAM CPU Offloading in VLLM]]
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- [[Running Qwen3.6 27B FP8 on Dankclaw]]
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