Umt Beta V2 〈LEGIT × PLAYBOOK〉
When allocating 80 GB (exceeding the GPU’s 48 GB VRAM), UMT Beta V2’s stress test ran for 6 hours without crashes. The driver’s migration algorithm prioritized frequently accessed pages. The tool correctly flagged 3 minor coherence delays but no data corruption.
| Tool | Unified Memory Support | Real-Time Dashboard | Oversubscription Test | Plugin API | Price | |--------------------|------------------------|---------------------|-----------------------|------------|---------------| | UMT Beta V2 | ✅ Full (CPU+GPU) | ✅ Web-based | ✅ | ✅ Rust/Lua | Free (OSS) | | MemTest86 | ❌ No | ❌ | ❌ | ❌ | $99+ | | CUDA-MEMCHECK | ⚠️ NVIDIA only | ❌ CLI only | ❌ | ❌ | Free | | Intel VTune | ⚠️ partial (Xe only) | ✅ (complex) | ✅ (limited) | ⚠️ C++ | $899/year | | AMD uProf | ⚠️ ROCm only | ✅ | ❌ | ⚠️ Python | Free | umt beta v2
Verdict: UMT Beta V2 is unmatched for multi-vendor heterogeneous systems, though VTune wins for deep microarchitecture analysis on Intel hardware. When allocating 80 GB (exceeding the GPU’s 48
Create a script my_stress.yaml:
name: "AI training simulation"
duration: 30m
allocation:
size: 60GB
pattern: cyclic_2d
access:
- kernel: matmul
device: gpu0
intensity: high
- kernel: reduce
device: cpu
intensity: medium
injection:
fault_rate: 0.001 # 0.1% artificial page faults
Run with:
umt run --config my_stress.yaml --output json