US Patent 10180924 Peer-to-peer communication for graphics processing units

Disaggregated computing architectures, platforms, and systems are provided herein. In one example, a method of operating a data processing system is provided. The method includes communicatively coupling graphics processing units (GPUs) over a Peripheral Component Interconnect Express (PCIe) fabric. The method also includes establishing a peer-to-peer arrangement between the GPUs over the PCIe fabric by at least providing an isolation function in the PCIe fabric configured to isolate a device PCIe address domain associated with the GPUs from at least a local PCIe address domain associated with a host processor that initiates the peer-to-peer arrangement between the GPUs.