GPU clusters that perform on the first training run.

Both can deliver lossless, low latency fabrics for training. InfiniBand remains common in the largest training clusters; Ethernet with RoCE has closed much of the gap and suits estates that want one networking technology. We choose from the job sizes, the scale and your operations team.

It depends on the power available per rack, cooling capacity and floor loading. Current accelerator racks can need several times the power of a standard rack, and the densest need liquid cooling. We assess the facility before hardware is ordered.

Yes. The most advanced accelerators are subject to United States export controls, with licensing requirements that depend on the destination and the end user. Supply and licensing are confirmed before a design is committed, and we do not move controlled hardware without the required authorization.

Renting suits uncertain or short-lived demand; owning pays back when utilization is high and sustained, or when data and models must stay on your own infrastructure. We model both against your workload before anything is bought.

A network design in which each GPU in a server connects to its own leaf switch, so matching GPUs across servers share a rail. It shortens the path for the collective operations training depends on and reduces congestion, which is why it is the usual design for large training clusters.

NCCL is the library GPUs use to exchange data during training. Its tests measure real bandwidth across the cluster, and a single misconfigured link or cable shows up as a slow result. Finding it before handover means slow training is never blamed on the model.

Fast shared storage for loading training data and writing checkpoints, usually a parallel file system, and object storage for datasets and models. Checkpoint writes are large and bursty, so storage is sized for them rather than for average throughput.

Sometimes, with changes. The questions are power per rack, cooling capacity and method, floor loading and cable pathways. We assess the facility against the cluster design, and the answer may be a few high density rows with liquid cooling rather than a new building.