abstract:darwin:account:account

UD allocations

A UD allocation¹⁾ provides access to DARWIN resources for UD faculty or staff acting as the Principle Investigator (PI) and users sponsored by that PI. If you do not have an active allocation, the following forms can be used to request an allocation:

Startup for first-time users (to become familiar with the DARWIN system); can be transformed into a Research allocation
Education for work associated with a UD class; the allocation period is strongly-tied to the beginning and end of an academic term
Research for all other cases

Please allow a minimum of two weeks processing of an allocation request. After being granted a UD allocation, a workgroup is created on the cluster. The PI is the administrative point of contact for that workgroup and is responsible for establishing and enforcing group-use policies for workgroup users.

Modifications to an active allocation prior to expiration, such as

extending the expiration date to allow more time for completing work
for a Research allocation:
- renewal (new CPU/GPU/storage resources in a subsequent time period following expiration)
- additional resources (credit of CPU/GPU/storage resources to current time period)

should use the Allocation Extension form.

UD allocation accounts

The PI associated with an active allocation should request the addition and removal of workgroup users by submitting a Research Computing High Performance Computing (HPC) Clusters Help Request. Click the green Request Service button and complete the form including DARWIN Account Request in the short description, selecting How to use it? for the type of information you are looking for, and in the description indicate the workgroup name and users to add or remove. There are two types of user that can be added:

UD community members: provide the UD email address and full name
HPC guests: provide the full name and email address (preferably a university, institution or organization; not personal)

A UD community member's account will reuse the same UDelNet ID and password used on other UD systems. When the UD community member's UDelNet ID or password is changed via the My UD Settings page, the change will be reflected on DARWIN by the next day (after 12:15 a.m.). In the meantime, the old UDelNet ID or password should continue to be used on DARWIN.

HPC guest accounts are distinguished by a username having the form hpcguest«uid-number» and an initial password sent in a PDF when the account is created. The «uid-number» is a unique 4-digit numerical identifier associated with the account. HPC guests can change their password: click the login button at the top of the page and enter the hpcguest«uid-number» and current password to login. Upon successful completion of the password page, the new password will take effect immediately on DARWIN. Passwords should always comply with UD's password recommendations.

UD allocation workgroups

The workgroups of which a user is a member determine which computing nodes, job queues, and storage resources that user may use. Each workgroup has a unique descriptive group name (gname) chosen by the PI. A user can generate a list of the workgroups of which they are a member using the workgroup command:

$ workgroup -q workgroups
1002 it_css

Subsequently, a list of all members of a workgroup can be generated using the hpc-group-info command:

$ hpc-group-info -a it_css
name = it_css
gid-number = 1002
description = John Huffman
member = traine; Student Training; traine@UDel.Edu
member = trainf; Faculty Training; trainf@UDel.Edu

There are additional user-class groups of which the user may also be a member:

everyone: this is the default group for all DARWIN users
ud-user: every UD community member user is a member of this group
hpc-guests: every HPC guest user is a member of this group
facstaff: every non-student user is a member of this group
students: every student user is a member of this group

The user-class groups are used to restrict access to software, for example.

ACCESS allocations

An ACCESS allocation provides DARWIN resources to a PI who has been granted an overarching allocation within the NSF ACCESS computational federation. See the ACCESS Allocations portal for more information.

After being granted an ACCESS allocation on DARWIN, a workgroup is created on the cluster. The PI is the administrative point of contact for that workgroup and is responsible for establishing and enforcing group-use policies for workgroup users.

ACCESS allocation accounts

Once an ACCESS PI has been granted a DARWIN workgroup the ACCESS Allocations portal should be used to add or remove user accounts:

If the individual has an ACCESS portal user account, the existing account ID should be used
If the individual does not have an ACCESS portal user account, the individual should visit the ACCESS User Registration page to create one and provide the chosen account ID with the PI

It may take up to 10 business days to process an ACCESS allocation account request on DARWIN.

ACCESS users will be assigned a username having the form xsedeu«uid-number». The «uid-number» is a unique 4-digit numerical identifier assigned to the user. An email with the subject "[darwin-users] New DARWIN ACCESS (XSEDE) account information" will be sent to the ACCESS user once the account is established on DARWIN. Directions in the email MUST be followed to set a password on the account prior to accessing any cluster resources; see Logging on to DARWIN for ACCESS (XSEDE) Allocation Users for details.

ACCESS allocation workgroups

$ workgroup -q workgroups
1120  xg-tra180011