Understanding latest change log eugr/spark-vllm-docker

Accelerated Computing DGX Spark / GB10 User Forum DGX Spark / GB10
1

Hi,
I daily check README.md in eugr/spark-vllm-docker to evaluate if update local cloned repository.

What does latest change log mean?
I’m too lazy to search Google or ask some LLM and trust only this forum when talking 'bout GB10 machines.

Do you invite me to run the following or better ignore it

git pull
./build-and-copy.sh –cleanup –tf5

-– Latest Change Log —

2026-05-18 NCCL Updated to NVIDIA v2.30u1

The Dockerfile now builds NCCL from NVIDIA’s v2.30u1 branch instead of the custom NCCL fork. This branch incorporates all features of the custom fork and is based on the latest NCCL release. The networking guide’s NCCL test commands have been updated to use the same branch for 3-node mesh clusters.

2

If I read that correctly you no longer need a custom NCCL build for three node clusters using a ring topology.

3

Uhm.. so it is something related to 3 nodes cluster. I should skip. Thanks.