| Symptom | Cause | Fix |
|---|---|---|
| Container fails to start with "pull access denied" | Missing or incorrect nvcr.io credentials | Re-run docker login nvcr.io with valid credentials |
| Web interfaces not accessible | Services still starting or port conflicts | Wait 2-3 minutes, check docker ps for container status |
NOTE
DGX Spark uses a Unified Memory Architecture (UMA), which enables dynamic memory sharing between the GPU and CPU. With many applications still updating to take advantage of UMA, you may encounter memory issues even when within the memory capacity of DGX Spark. If that happens, manually flush the buffer cache with:
sudo sh -c 'sync; echo 3 > /proc/sys/vm/drop_caches'