The Hardware Catalog on the Chameleon Portal

You may use the Hardware Discovery page at the Chameleon Portal to see the different hardware resource types available at each Chameleon site.

Availability Calendars

The CHI site buttons in the Availability Calendar section of the Resource Browser allow you to open the The Lease Calendars at the Chameleon sites. You must log in using your Chameleon account to view these lease calendars.

Resource availability links to the lease calendars

Chameleon Resource Browser

The Resource Browser allows you to filter Chameleon resources by node type and view details of each node.

You can filter for specific node features by selecting the checkboxes that match your filter criteria in the menu at the bottom or by clicking on a node type such as compute_gigaio or gpu_a100_pcie. The numbers printed next to the node types indicate the total number of nodes that we have in our capacity.

You can also click the Advanced Filters dropdown to view even more node parameters.

After you have selected filter criteria, you can click the View button at the bottom of the page to see details of individual nodes that match your filtering criteria.

Note

All the nodes in Chameleon is identified by their UUIDs. You will need the UUID of a node for making reservations and for power monitoring. In addition, each node also has a Version UUID, which is used for retrieving its maintenance history.

Attention

When we replace faulty hardware on a node, the replacement part typically has the same hardware characteristics. For example, a node with a faulty 250 GB hard drive would be replaced with the same 250 GB hard drive model. However, it may be important for your experimental reproducibility to know about those hardware replacement events, in case it affects your metrics.

Checking Availability for Node Types

From the node detail view, you can click the View Host Calendar button to open the site lease calendar for that node. The calendar shows when the node is reserved, letting you identify open windows before making a reservation. For instructions on creating a lease, see Creating a Lease to Reserve Resources.

If you have filtered the resource browser down to a single node type, clicking View Host Calendar will open the calendar with that node type pre-selected, saving you from having to filter manually after landing on the calendar page. If your current filters produce results spanning multiple node types, the calendar will open in its default view with a default node type loaded instead.

Node detail view with availability and reserve buttons

Note

You must be logged in to a Chameleon site to view its lease calendar. If you follow a direct link to a site calendar while logged out, you will be redirected to log in and then returned to the calendar automatically.

Generating a Reservation Script

From the filter page of the Hardware Resource Browser, you can also generate a reservation script by clicking the Reserve button at the bottom of the page. The generated command varies depending on your current filter state:

If you have filtered down to a single node type, the command will reserve one node of that type by node type name.
If your filters produce a list of nodes across multiple types, the command will reserve each of those exact nodes by their individual UUIDs.

When clicking the Reserve button, a dialog containing the auto-generated command will appear for you to copy and paste.