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ClusterVisionOS™ is a Linux-based cluster operating system and management environment which greatly simplifies the management and use of HPC clusters. With ClusterVisionOS™, a cluster administrator can install, manage and use multiple clusters simultaneously without the need for expert knowledge of Linux or HPC.
ClusterVisionOS™ provides the system administrator with a single system view while offering the user an excellent environment for High Performance Computing.
Based on open standards, ClusterVisionOS™ combines the best of open source and commercial software for HPC. It has been designed to scale to thousands of nodes and to interoperate with common grid technologies and application APIs. Furthermore, it has been Intel® Cluster Ready certified, which ensures compatibility with a wide range of certified applications.
ClusterVisionOS™ can be used to manage multiple clusters simultaneously. This screen provides a "dashboard"-style overview of the state of the cluster.
 Based on Linux
ClusterVisionOS™ is based on Linux and comes with a choice of pre-integrated, pre-configured and optimised Linux distributions. Contrary to competitors' solutions, it is tightly integrated with the Linux distribution which means that in order to install it, a prior Linux installation is not required. This approach guarantees a seamless and trouble-free installation of ClusterVisionOS™ without any software version conflicts.
Easy to Install and Use
ClusterVisionOS™ is easy to install and use. It provides a single system view for managing all hardware and software aspects of the cluster through a single point of control. The graphical user interface (GUI) streamlines the administrative workflow by allowing all common tasks to be performed through one carefully designed interface. In addition, all tasks and configuration settings are also accessible through a scriptable command line interface (CLI).
Image Management & Provisioning
ClusterVisionOS™ includes a sophisticated image mangement and provisioning system that allows the cluster administrator to automatically install a fully functional cluster from "bare metal" within minutes. An unlimited number of images can be created and assigned to as many different groups of nodes as required. Incremental changes to images can be deployed to live nodes without the need for a reboot or reinstallation. For large clusters, multiple load-balancing provisioning nodes can be used.
When selecting a cluster node in the tree on the left and the Tasks tab on the right, the system administrator can execute a number of powerful tasks with a single mouse click.
Monitoring
A comprehensive set of hardware and software metrics can be monitored, visualised and analysed. Practically all software metrics available to the Linux kernel and all hardware metrics available to hardware management interfaces, such as IPMI, are available. Examples include CPU temperatures, fan speeds, SMART information, system load, memory usage, network statistics, available disk space and workload management statistics.
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All metrics can be visualised by simply dragging them from the list on the left and dropping them into an available graphing window. Metrics of the same type can be combined in one graph.
System Management
Automated system management takes preemptive actions when set system thresholds are exceeded. System thresholds can be configured on any of the available metrics. Standard actions include logging health state messages, logging to files, sending emails, powering up or down nodes, or running custom scripts.
The system is highly configurable and easily adaptable using the cluster management GUI with built-in configuration wizard.
The system management wizard guides the cluster administrator through the steps of selecting metrics and defining thresholds and actions.
User Management
ClusterVisionOS™ offers a role-based access control mechanism which supports an unlimited number of users and groups, whereby user privileges can be defined on a per-role basis. All user management operations can be performed through the GUI or the CLI. An LDAP service is included for user authentication within the cluster. Integration with external LDAP servers is also possible.
In the Authorisation window, profiles or roles can be created for different types of cluster users. Users can then be assigned a profile.
Parallel Shell
The parallel shell tool allows execution of commands and scripts across the cluster as a whole or on easily definable groups of nodes. Output from the executed commands is displayed in a convenient way with variable levels of verbosity.
The Parallel Shell tab allows convenient viewing of the output of many nodes simultaneously. This type of powerful visualisation is only possible using a graphical user interface.
Workload Management
ClusterVisionOS™ provides a user-friendly interface for the monitoring and configuration of common workload managers such as Grid Engine and Torque/Maui. Various common tasks for manipulating jobs and queues are available to users and administrators.
The Workload Management window shows the current queue status and allows the administrator or users to see jobs details and provide job tasks such as remove, hold, release, suspend and resume.
HPC Development Environment
ClusterVisionOS™ is not just a cluster management environment, it also provides a comprehensive HPC development environment for parallel applications. The environment includes HPC middleware such as MPI libraries, OpenMP, Global Arrays, mathematical libraries and multi-core threading libraries. Development tools such as compilers, debuggers and profilers are also included.
A modular environment provides convenient tools for users to use different versions of applications, compilers and libraries simultaneously without encountering software conflicts.
The modules list command shows all available modules available to the users of the cluster.
Architecture for the Future
A cluster running ClusterVisionOS™ exposes a SOAP-based API over encrypted SSL connections to the outside world, which potentially lets any application interface securely with the cluster. Certificate-based authentication in the SSL layer guarantees that only authorised clients may gain access to the cluster.
Initially, the cluster management GUI and CLI included with ClusterVisionOS™ will be the only applications employing the cluster management API. However, since the API will be fully published and documented, sites that have a need for it may integrate access to the cluster into scripts or remote applications.
Comprehensive Documentation
A comprehensive system administrator manual and site customisable and extendable user wiki are available.
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ClusterVisionOS™