Introduction

Welcome to GPU-SD, a daemon and library for the discovery and announcement of graphics processing units using ZeroConf. GPU-SD enables auto-configuration of ad-hoc GPU clusters and multi-GPU machines.

GPU-SD 1.0 is the initial release delivering local discovery for all major operating systems and remote announcements and discovery using the ZeroConf protocol. GPU-SD 1.0 can be retrieved by downloading the source code or one of the binary distributions.

Features

GPU-SD provides the following features to enable GPU discovery:

• Local Discovery: Automatic GPU discovery for Linux (X11/GLX), Mac OS X (CGL, GLX) and Windows (WGL, WGL_NV_gpu_affinity, WGL_AMD_gpu_association).
• Network announcement: A daemon for network announcement of available GPUs and their configuration using DNS service discovery and ZeroConf networking.
• Remote Discovery: Remote GPU discovery of resources announced using the GPU-SD daemon.

New in this release

GPU-SD 1.0 is the initial release and contains the following features:

New Features

• Base discovery library
  • Runtime-loadable discovery modules
  • Chainable, user-programmable filters during discovery
  • CGL discovery module (Mac OS X)
  • GLX discovery module (Linux, Mac OS X)
  • WGL discovery module supporting plain WGL, WGL_NV_gpu_affinity and WGL_AMD_gpu_association (Windows)
  • DNS_SD discovery module for remote discovery (all systems)
• DNS_SD announcement daemon using the CGL, GLX and WGL modules.
  • Session support

Enhancements

No enhancements.

Optimizations

No optimizations.

Examples

No example code.

Tools

• gpu_sd_list query tool printing all GPUs found using the DNS_SD module

Changes

The following changes breaking compatibility with GPU-SD 1.0 source code were made:

No API changes.

Documentation

The following documentation has been added or substantially improved since the last release:

• README outlining the protocol and basic usage
• API documentation

Bug Fixes

GPU-SD 1.0 includes various bugfixes over the last release, including the following:

No bug fixes.

Known Bugs

The following bugs were known at release time. Please file a Bug Report if you find any other issue with this release.

No known bugs.

About

GPU-SD is a cross-platform library, designed to run on any modern operating system, including all Unix variants and the Windows operating system. A ZeroConf implementation is required for the DNS_SD module and applications.

Operating System Support

GPU-SD uses CMake to create a platform-specific build environment. The following platforms and build environments are tested:

• Linux: Ubuntu 11.04, 11.10 (Makefile, i386, x64) using the dns_sd compatibility layer of avahi.
• Windows: 7 (Visual Studio 2008, i386, x64) using Apple's Bonjour SDK
• Mac OS X: 10.6, 10.7 (Makefile, XCode, i386, x64) using the native Bonjour SDK

Documentation

Support

Technical questions can be posted to the Developer Mailing List, or directly to info@equalizergraphics.com.

Commercial support, custom software development and porting services are available from Eyescale. Please contact info@eyescale.ch for further information.

Errata