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NVIDIA Blackwell B200 hardware

Spike 1 provides NVIDIA’s flagship DGX B200 systems for TU/e academic research. Engineered for demanding scientific machine learning, computer vision, and foundation model workloads, each DGX node combines eight interconnected NVIDIA Blackwell B200 GPUs, high-bandwidth NVLink switching, and high-performance 250 TiB DDN project storage.

The DGX B200 introduces significant generational speedups in tensor compute, memory capacity, and inter-GPU communication:

Capability Specification Workload benefit
GPU accelerator 8x NVIDIA Blackwell B200 GPUs Next-generation streaming multiprocessors with high-density Tensor Cores
GPU memory (vRAM) 192 GB HBM3e per GPU (1.5 TB total per node) Accommodates large models, extended context windows, and large batch sizes
Memory bandwidth 8.0 TB/s per GPU Dramatically reduces memory-bandwidth bottlenecks during attention operations
Interconnect 5th-Gen NVLink (1.8 TB/s bi-directional per GPU) NVSwitch mesh connecting all 8 GPUs for ultra-fast all-reduce and tensor parallelism
Precision support FP4 (NVFP4), FP8, BF16, FP16, TF32, FP64 Second-generation Transformer Engine with native micro-scaling acceleration
Project storage 250 TiB high-performing DDN space High-throughput parallel storage mounted at /data with S3 connection options
Software suite NVIDIA AI Enterprise Optimized containers, validated runtimes, and profiling tools

Second-generation Transformer Engine & precision

Section titled “Second-generation Transformer Engine & precision”

The Blackwell B200 features hardware-accelerated precision formats tailored for modern deep learning:

  • NVFP4 (4-bit floating point): Hardware micro-scaling format providing up to 2× the inference throughput of FP8 while preserving accuracy for supported model architectures.
  • FP8 (8-bit floating point): Accelerated training and fine-tuning with automatic scaling via PyTorch torch.ao or NVIDIA Transformer Engine.
  • BF16 / FP16: Native 16-bit mixed precision widely supported across standard PyTorch, JAX, and Hugging Face pipelines.

Workloads request Blackwell B200 GPUs through the Run:AI scheduler. Match your request to your workload requirements:

  • 1x B200 (192 GB vRAM): Prototyping, exploratory notebooks, single-GPU training, and medium-scale model fine-tuning.
  • 2x B200 / 4x B200: Distributed data parallel (DDP) or Fully Sharded Data Parallel (FSDP) training across multiple accelerators.
  • 8x B200 (Full DGX Node): Full-node distributed runs utilizing the full 1.8 TB/s NVLink fabric for maximum tensor parallel and pipeline parallel efficiency.

Because B200 Tensor Cores process matrix operations rapidly, keeping GPUs saturated requires an efficient data pipeline:

  • Mount your project’s persistent volume claim (PVC) at /data as outlined in Storage and data.
  • For large datasets, leverage the S3 connection option or package data into chunked sequential formats (e.g. WebDataset or Sharded Parquet) to avoid file-system metadata overhead.
  • Consult Monitoring and profiling to track GPU kernel utilization and verify I/O wait times remain minimal.