LLview¶

Getting started¶

To access the LLview web portal, use the following URL for the corresponding system:

The full document of LLview can be found in Job reporting full documentation

LLview Job Reporting web portal¶

LLview is a set of software components to monitor clusters that are controlled by a resource manager and a scheduler system. Within its Job Reporting module, it provides detailed information of all the individual jobs running on the system. To achieve this, LLview connects to different sources in the system and collects data to present to the user via a web portal. For example, the resource manager provides information about the jobs, while additional daemons may be used to acquire extra information from the compute nodes, keeping the overhead at a minimum, as the metrics are obtained in the range of minutes apart. The LLview portal establishes a link between performance metrics and individual jobs to provide a comprehensive job reporting interface.

The LLview Job Reporting web portal provides:

job list tables, containing their aggregated performance information (for jobs that are running or have already finished within three weeks);
timeline graphs per job for the key performance metrics;
access to detailed job reports, including an interactive report or a static PDF version;
role-based access to different levels of information;
live view of the system;

LLview Job Reporting for each Job¶

The job reporting interface of LLview web portal comprises, for each job:

basic information (as job ID, username, project, start and estimated end time, etc.); aggregated metrics for different quantities (some of them color-coded to indicate good or bad values);
job error indicators;
links to the detailed job report.