DeepSeek V4.1 Flash 1017 for 4x DGX Sparks got a lot of updates, with support for
@NVIDIAAI's NVFP4, and a lot PRs/issues merged/fixed.
NVIDIA's NVFP4
- Can be enabled by setting NVFP4=1.
- 4-6% increase on prefill speeds.
- A bit faster decode on multi-concurrency.
✨Faster loading
- Each worker can load the model from its own disk instead of over the network (opt-in); reported load time from 315s to 96s.
- The weight file is read ahead of the loader; reported node load time from 83s to 27s.
✨More reliable replies
- A reply format rule that can't start now fails only its own request.
- A failed first GPU launch leaves the cached graph safely in its cache.
- JSON answers stay JSON instead of being mistaken for tool calls.
- A reply containing only stray tool-call closing tags now gets a warning, not a guessed repair.
✨Safer scripts
- Long-running background processes no longer hold on to the launcher's locks.
- On switched networks, nodes prefer their shared fast network when connecting at startup.
- ./stop.sh can now warn about requests still in progress, and the ./start.sh test needs a real model reply.
- IPv6 addresses now work in the URLs ./start.sh checks and prints.
- Preparation tools now run on the same image as the server.
- ./prepare.sh now stops if indexing fails, instead of deleting the weight file.
Updates also coming for 2x DGX Spark version!
Thanks to shalk3,
@SvangenStudios,
@tfolkman, Christopher A. Williamson (cawilliamson), and Toshiaki Maki.
Link below.