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Get access to and manage resources on Colossus

  

Get access to Colossus

The usage of Colossus cluster is a service on demand. The project administrator can request access to the Colossus resources when applying for a  new project in TSD (i.e. in the project application form). Alternatively the administrator of an existing TSD project can request access to the resources by sending a mail to tsd-drift@usit.uio.no.

The application will be processed within five working days after submission and the project administrator will be informed by e-mail when the Colossus cluster is accessible from the linux submit VM.

Get more CPU hours and disk on Colossus

When a project gets access to Colossus resources, it has a 200k CPU hours quota in the TSD queue.  Use of the TSD queue is free of costs for UIO projects, but we recommend UIO-users to apply for Sigma2 quota to get access the to the larger Sigma2 queue (tick the "Services for Sensitive Data" in the application on https://www.metacenter.no/mas/application/project/).

Non-UiO projects will pay for the CPU hours actually used over a year (the invoice covers the usage between 1st October and 30th September the year after).

The initial storage allocation on the Colossus's disk (namely /cluster/project/pX) is 1 TiB storage space. If needed the project administrator can request more storage space on the Colossus disk by sending a mail to tsd-drift@usit.uio.no.

The application will be processed within two working days after submission.

Order backup of the disk on Colossus

By default, there is no backup of the data stored on Colossus's disk (namely /cluster/projects/pXX). 

If you need to work on several TiB of data and moving the data between the central (HNAS) disk and the Colossus disk is not convenient, we strongly recommend backing up /cluster/projects/pXX.

The backup of the Colossus disk is a service on demand. The project administrator can order it by sending a mail til tsd-drift@usit.uio.no.

The application will be processed within five working days after submission.

List of projects currently having backup of the Colossus's disk.

Prices for CPU hours, storage and backup on Colossus

The prices depend on the affiliation of the TSD project that in turn depends (in most cases) on the affiliation of the Data Controller.

See list of prices. 

We will invoice annually in October each year for the usage of the CPU hours in the period between October 1st the previous year and September 30th, the current year. Colossus disk usage is invoiced for the same period. We recommend UIO-users to apply for Sigma2 quota for CPU + GPU (check "Services for Sensitive Data" in the application on https://www.metacenter.no/mas/application/project/).

Check the usage of CPU hours on Colossus

The CPUh usage can be checked at any time by running the cost command:

$ cost
Report for account p11 on Colossus
Allocation period 2020.1 (2020-04-01 -- 2020-10-01)
Last updated on Fri Aug 28 10:36:02 2020
===========================================================
Account  Description              Billing hours  % of limit
===========================================================
p11      Used (finished)                 722.56       0.7 %
p11      Reserved (running)                0.00       0.0 %
p11      Pending (waiting)                 0.00       0.0 %
p11      Available                     99277.44      99.3 %
p11      Limit                        100000.00     100.0 %
===========================================================

The usage refers to a 6 month period starting October 1st  or April 1st. The yearly invoice will cover two consecutive periods.

Add the --details argument to view the per user CPUh usage:

$ cost --details
Report for account p11 on Colossus
Allocation period 2020.1 (2020-04-01 -- 2020-10-01)
Last updated on Fri Aug 28 10:24:40 2020
===========================================================
Account  Description              Billing hours  % of limit
===========================================================
p11      Used (finished)                 722.56       0.7 %
p11      Reserved (running)                0.00       0.0 %
p11      Pending (waiting)                 0.00       0.0 %
p11      Available                     99277.44      99.3 %
p11      Limit                        100000.00     100.0 %
===========================================================
Account  User                Used billing hours  % of limit
===========================================================
p11      p11-kjpe                        702.08       0.7 %
p11      p11-bartt                        20.46       0.0 %
p11      p11-bhm                           0.03       0.0 %
===========================================================

Check the usage of storage on Colossus

Use the df command to list the current project disk usage on Colossus:

$ df -h /cluster/projects/p11
Filesystem              Size  Used Avail Use% Mounted on
ess01.tsd.usit.no:/p11  5.0T  4.0T  1.1T  80% /cluster/p/p11

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Published June 21, 2021 10:35 AM - Last modified June 17, 2022 3:00 PM