The Graphics Agent for Linux provides support for PCoIP Ultra, the latest protocol enhancements from Teradici. PCoIP Ultra is optimized for truly lossless support with bit-exact color accuracy and preservation of content detail at the highest frame rates.
PCoIP Ultra protocol enhancements propels our industry-recognized performance into the future of remote computing, with faster, more interactive experience for users of remote workstations working with high-resolution content.
PCoIP Ultra enhancements are disabled by default. You must enable them manually.
PCoIP Ultra is appropriate for specific use cases
For most users, the default PCoIP protocol will provide the best possible experience. Carefully review the recommended use cases in the next section to determine whether you should enable it.
For additional detail on PCoIP Ultra technical requirements for various use cases and troubleshooting steps, refer to KB 2109: PCoIP Ultra Troubleshooting.
When to Enable PCoIP Ultra¶
PCoIP Ultra is apporpriate for users with the following requirements:
Auto Offload: Achieves the best balance between color accuracy and network efficiency. This setting is appropriate for work-from-home or WAN content creators who require optimized delivery of high resolution content, including video playback, while still achieving build-to-lossless color accuracy.
CPU Offload: Provides efficient scaling across multicore CPUs, leveraging AVX2 instruction sets. Appropriate for users that require CPU-optimized delivery of 4K UHD, high-framerate video playback and build-to-lossless color accuracy. It is also useful when GPU encoding resources must be reserved for video encoding applications, typically in LAN environments.
GPU Offload: PCoIP encoding is always offloaded to a GPU. Appropriate for users who demand the highest possible CPU efficiency.
For all other scenarios, Teradici recommends that you leave PCoIP Ultra disabled.
To take advantage of PCoIP Ultra, you need:
A PCoIP agent (any type), 21.03 or later
A PCoIP Software Client (any type), 21.03 or later
PCoIP Tera2 Zero Clients do not support PCoIP Ultra
PCoIP Ultra is only available through PCoIP Software Clients.
CPU offload requires CPU support for the AVX2 instruction set on both the agent and client machines.
GPU offload requires an NVIDIA graphics card that supports NVENC on the agent machine.
Enabling PCoIP Ultra¶
To enable PCoIP Ultra features, edit the pcoip-agent.conf file and set the
pcoip.ultra configuration setting as required:
1 To turn on PCoIP Ultra CPU Offload. CPU offload requires CPU support for the AVX2 instruction set on both the remote host and client. The PCoIP Zero client is not supported. CPU offload is recommended for 4K UHD resolutions with video playback requirements of 30 fps (or more), and the highest possible image quality and color accuracy.
2 To turn on PCoIP Ultra GPU Offload - GPU offload requires an NVIDIA graphics card on the remote host capable of NVENC. GPU Offload is recommended when the CPU impact of pixel encoding should be minimized.
3 To use PCoIP Ultra Auto Offload This setting allows PCoIP to automatically switch between CPU and GPU Offload modes; CPU offload is used by default to provide the best image fidelity, and GPU offload is used during periods of high display activity to provide improved frame rates and bandwidth optimization.
This setting is only effective if the remote host and client endpoints are capable of both CPU and GPU Offload.
All PCoIP Ultra settings take effect on the next PCoIP session. No configuration is required on the PCoIP Software Client.
Turning PCoIP Ultra off
To disable PCoIP Ultra and use the default PCoIP experience instead, set
pcoip.ultra to 0.
Setting configuration values
If you don't know how to set PCoIP agent configuration values, refer to Configuring the Graphics Agent for Linux.