.. meta::
   :description: How to perform network validation testing on optimized hardware
   :keywords: network validation, DCGPU, PCIe, Infiniband, RoCE, ROCm, RCCL, machine learning, LLM, usage, tutorial

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Cluster network performance validation for AMD Instinct accelerators
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When running HPC and AI applications in a cluster network environment, performance is only as fast as the slowest
individual node in the network. To achieve optimal performance, each server must be configured for maximum data transfer
rates and bandwidth utilization based on the available hardware. It is crucial to validate both host and device
performance in single-node and multi-node environments using the appropriate benchmarking tools.

Refer to the relevant networking guides for step-by-step instructions on validating network configurations in
single-node and multi-node environments. These guides cover system settings, device configurations, networking tools,
and performance tests to ensure AMD Instinct™-powered GPU clusters achieve optimal speed and bandwidth during operation.

.. grid:: 2
   :gutter: 3

   .. grid-item-card:: How to

      * :doc:`Enabling MPI <how-to/gpu-enabled-mpi>`
      * :doc:`Single-node network configuration <how-to/single-node-config>`
      * :doc:`Multi-node network configuration <how-to/multi-node-config>`
      * :doc:`RoCE network configuration <how-to/roce-network-config>`
      * `Multi-node inference load balancing <./how-to/multi-node-inference-lb.html>`_

   .. grid-item-card:: Reference

      * :doc:`Hardware support <reference/hardware-support>` 


.. note::

   AMD Instinct systems vary in form and configuration, and cluster design adds additional layers of complexity. The
   guidelines in this documentation are written at a high level for broad applicability across diverse environments.
   While certain scenarios may include specific hardware examples, your setup will likely differ in terms of GPUs and
   CPUs per server, firmware versions, and network interconnects. Adjustments might be necessary to align with your
   particular configuration.