Caviness account requests

All Caviness cluster accounts must be sponsored by a principle stakeholder, also known as a stakeholder, someone who is responsible for managing or purchased HPC resources on the Caviness cluster. All account requests must be submitted by a stakeholder. If you not a stakeholder, then you may try to seek sponsorship from an existing Caviness stakeholder for a particular investing-entity (workgroup).

A Caviness stakeholder may request a Caviness account to be added or removed by submitting a Research Computing High Performance Computing (HPC) Clusters Help Request and click on the green Request Service button and complete the form including Caviness Account Request in the title, select How to use it? for the type of information you are looking for, and include the workgroup name (i.e. workgroup -q workgroups) and all of the sponsored users' full name and email addresses for

• UD community members: UDelNet ID and full name
• Guests: Full name and email address (preferably a university, institution or organization; not personal)

in the description.

The cluster's compute nodes are organizationally identified by UD research group names. A stakeholder is a UD researcher who contributed financially to a node's purchase. An investing-entity (workgroup) consists of the stakeholders who combined funds to purchase a particular compute node or set of nodes. Each workgroup has a principal stakeholder who is the administrative point of contact for its compute nodes.

There are two types of cluster accounts: stakeholders and sponsored users. Sponsored users are researchers having at least one stakeholder willing to share his/her cluster resources (compute nodes, storage allocation).

For each workgroup, the principal stakeholder is responsible for establishing and enforcing group-use policies for his/her sponsored users.

If you are a UD community member, your UD allocation username and password are the same as your UDelNet ID and password. You may change your UDelNet ID or password on the My UD Settings page, but it is only synced at 12:15AM EST daily on Caviness, so basically the next day. In the meantime, you may continue to use the old password on Caviness until the update occurs.

If you are not a UD community member, IT will create a username having the form hpcguest«uid», and an initial password for you. It is based on the unique, 4-digit numerical identifier IT assigns to you. You can change your password via UD IT HPC page by clicking on the login button at the top of the page and enter your hpcguest«uid» and current password. The new password will immediately take effect on HPC systems.

Passwords for UD or guest accounts should always comply with UD's password recommendations.

For example,

[traine@caviness ~]$ hpc-user-info -a traine
full-name = Student Training
last-name = Student Training
home-directory = /home/1201
email-address = traine@udel.edu

The cluster groups of which you are a member determine which computing nodes, job queues, and storage resources you may use. Each group has a unique descriptive group name (gname). There are two categories of group names: class and investing-entity.

The class category: All users belong to the group named everyone. Members of the UD community also belong to the group named ud-user. Non-UD users are members of the group named hpc-guests. Other group names currently include facstaff, students, and stakeholders.

The investing-entity category: Each investing-entity has a unique group name (e.g., nanotech or the principal stakeholder's username) also referred to as workgroup. The investing-entity's stakeholders and its sponsored users are members of that cluster group. To see the usernames of all members of an investing-entity's group, type the getent group «investing_entity» command.

Use the command groups to see all of your groups. The example below is for user traine

$ groups
everyone ud-users students it_css

To get complete information regarding the cluster workgroup and members, you can use the command hpc-group-info. The output of this command will list the cluster workgroup's information (description = stakeholder), along with every member in the workgroup (workgroup) and their account information (Username, Full Name, Email Address).

hpc-group-info -a «investing-entity»

For example, using the following command

hpc-group-info -a it_css

will display all information about workgroup it_css and all members. To get help, use hpc-group-info –help to see all options.