https://conselara.dev/tags/ray/ Recent content in Ray on Conselara Labs Hugo en Thu, 14 May 2026 00:00:00 +0000 https://conselara.dev/notes/two-node-ray-cluster-dgx-spark/ Thu, 14 May 2026 00:00:00 +0000 https://conselara.dev/notes/two-node-ray-cluster-dgx-spark/ Step-by-step setup for a two-node Ray cluster running Qwen3-235B across two DGX Sparks, including RoCE verification, model sync, NCCL configuration, and the specific gotchas that cause silent failures.