HPL results are far below peers on one node. What is the next step?
Why D is the answer
Run deeper single-node checks on it
Isolate the slow node before going on.
In detail
- Isolate the slow node before going further.
- Isolate it before going on.
Use case
An illustrative scenario, not a real incident.
One node falls far below its peers, so it gets deeper single-node checks.
See it in different ways
flowchart TD
A["Symptom"] --> B{"GPU, fan, NIC or power?"}
B --> C["Check logs and sensors"]
C --> D["Run diagnostics"]
D --> E["Replace the failed part"]
E --> F["Run the tests again"]stateDiagram-v2 [*] --> Symptom Symptom --> Logs: Xid and BMC events Logs --> Diagnostics Diagnostics --> Replace Replace --> Retest Retest --> [*]
flowchart TD
Q{"Is it far below peers?"}
Q -->|"Yes"| A0["Run deeper checks"]
Q -->|"No"| A1["Continue"]Key point: Isolate a slow node.
Why the other options are wrong
- A. Accept the result as a normal variation
- A large gap is not normal variation.
- B. Remove HPL from the test plan
- That hides the fault.
- C. Scale the test to more nodes
- Scaling up spreads the problem.