Portfolio Optimization

Symptom	Cause	Fix
Docker is not found.	Docker may have been uninstalled, as it is preinstalled on your DGX Spark	Please install Docker using their convenience script here: `curl -fsSL https://get.docker.com -o get-docker.sh && sudo sh get-docker.sh`. You will be prompted for your password.
Docker command unexpectedly exits with "permissions" error	Your user is not part of the `docker` group	Open Terminal and run these commands: `sudo groupadd docker $$ sudo usermod -aG docker $USER`. You will be prompted for your password. Then, close the Terminal, open a new one, and try again
Docker container download, environment build, or data download fails	There was either a connectivity issue or a resource may be temporariliy unavailable.	You may need to try again later. If this persist, please reach out to us!

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'

For latest known issues, please review the DGX Spark User Guide.

Portfolio Optimization

Resources