3.7 Containers from NGC

Key points

1. NGC (NVIDIA GPU Cloud) is NVIDIA's catalog of GPU-optimized software. nvcr.io is its container registry.

   What NVIDIA says (1)

   “nvcr.io : The name of the container registry, which for the NGC container registry is nvcr.io .”

   — NGC Catalog User Guide

2. --gpus all exposes the GPUs. -it is interactive. --rm deletes the container on exit. -v mounts a directory.

   What NVIDIA says (1)

   “A run command looks similar to: docker run --gpus all -it --rm -v local_dir:container_dir nvcr.io/nvidia/caffe2:<xx.xx>”

   — NGC Catalog User Guide

3. A tag names a specific image version. Always state the tag you want from the catalog.

   What NVIDIA says (1)

   “If you choose not to add a tag to an image, by default the word “latest” is added as the tag, however all NGC containers have an explicit version tag.”

   — NGC Catalog User Guide

Key terms

• NGC: NVIDIA's catalog of GPU-optimized software; its container registry is nvcr.io.

Try it

• NGC Container Flow: simulator lab

Sample question

In the image name nvcr.io/nvidia/caffe2:17.10, what is nvcr.io?