Longhorn User News

Longhorn Maintenance Tuesday 16 March 2021

Posted by Matthew Edeker on Feb 8, 2021 2:13:40 PM

Longhorn will be unavailable from 8:00 AM to 5:00 PM (CST) on Tuesday, 16 March 2021. System maintenance will be performed during this time.

Please submit any questions you may have via the TACC User Portal.

Updated on Feb 22, 2021 11:12:06 AM

System maintenance has been moved to Tuesday, March 16 2021.

Original Posting

Longhorn will be unavailable from 8:00 AM to 5:00 PM (CST) on Tuesday, 16 March 2021. System maintenance will be performed during this time.

Please submit any questions you may have via the TACC User Portal.

Queues down on all Large Scale Systems Monday 15 February 2021

Posted by Matthew Edeker on Feb 15, 2021 11:00:35 AM

Due to the recent state of emergency in the City of Austin due to extreme weather and the impact it is having on the power in Austin, TACC is closing all queues on all Large Scale Systems. This includes Frontera, Stampde2, Lonestar5, Longhorn, and all other TACC resources. Queues will re-open as...

Updated on Feb 19, 2021 3:32:48 PM

All TACC large scale production systems have resumed full operations after powering down and load shedding to help with the Texas power grid emergency.

Original Posting

Due to the recent state of emergency in the City of Austin due to extreme weather and the impact it is having on the power in Austin, TACC is closing all queues on all Large Scale Systems. This includes Frontera, Stampde2, Lonestar5, Longhorn, and all other TACC resources. Queues will re-open as soon as possible when the emergency subsides.

Please submit any questions you may have via the TACC User Portal. 

Texascale Days on Longhorn 2-8 February 2021

Posted by Tim Cockerill on Jan 29, 2021 2:01:18 PM

Longhorn will be participating in the Texascale Days event, with about two-thirds of the nodes reserved for a large-scale run, beginning Tuesday February 2 and will return all nodes to being fully available on Tuesday February 9. These events enable research that requires extreme scale of at least...

Longhorn will be participating in the Texascale Days event, with about two-thirds of the nodes reserved for a large-scale run, beginning Tuesday February 2 and will return all nodes to being fully available on Tuesday February 9. These events enable research that requires extreme scale of at least half of the system. We have not yet scheduled our next Texascale Days event. Watch for a forthcoming announcement if you have a research problem that will benefit from running at this scale.

Longhorn Status Tuesday 26 January 2021

Posted by Mark Brueschke on Jan 26, 2021 11:39:55 AM

Longhorn is currently unavailable. TACC staff are currently working to resolve the issue.
 
Please submit any questions you may have via the TACC User Portal.
 
https://portal.tacc.utexas.edu/tacc-consulting
 

Updated on Jan 26, 2021 12:33:58 PM

Longhorn is back in service as of 12:30 PM on Tuesday, 26 January.

Please submit any questions you may have via the TACC User Portal.

https://portal.tacc.utexas.edu/tacc-consulting

Original Posting

Longhorn is currently unavailable. TACC staff are currently working to resolve the issue.
 
Please submit any questions you may have via the TACC User Portal.
 
https://portal.tacc.utexas.edu/tacc-consulting
 

Longhorn Status Sunday 24 January 2021

Posted by Mark Brueschke on Jan 24, 2021 1:47:23 PM

Longhorn is currently unavailable. TACC staff are currently working to resolve the issue. 

Please submit any questions you may have via the TACC User Portal.

https://portal.tacc.utexas.edu/tacc-consulting

Updated on Jan 24, 2021 3:31:10 PM

Longhorn is back in service as of 3:30 PM on Sunday, 24 January.

Please submit any questions you may have via the TACC User Portal.

https://portal.tacc.utexas.edu/tacc-consulting

Original Posting

Longhorn is currently unavailable. TACC staff are currently working to resolve the issue. 

Please submit any questions you may have via the TACC User Portal.

https://portal.tacc.utexas.edu/tacc-consulting

Emergency Network Maintenance Friday, 22 January 2021

Posted by Mark Brueschke on Jan 22, 2021 1:43:58 PM

Emergency firewall maintenance is being carried out, the process should be brief with all services restored quickly.


Please submit any questions you may have via the TACC User Portal.
https://portal.tacc.utexas.edu/tacc-consulting

Updated on Jan 22, 2021 2:53:54 PM

Firewall maintenance is complete as of 2:50 PM.

Original Posting

Emergency firewall maintenance is being carried out, the process should be brief with all services restored quickly.


Please submit any questions you may have via the TACC User Portal.
https://portal.tacc.utexas.edu/tacc-consulting

Upcoming TACC Training Short Courses - February and March 2021

Posted by Jason Allison on Jan 21, 2021 9:21:44 AM

We are pleased to announce the following training courses being held via webcast during the months of February and March 2021:  - Introduction to Linux - February 10th, 2021, 1pm - 4pm CT  - C++ for C Programmers - February 18th, 2021, 9am - 3pm CT  - MPL Object-Oriented Interface to MPI - February...

We are pleased to announce the following training courses being held via webcast during the months of February and March 2021:

 - Introduction to Linux - February 10th, 2021, 1pm - 4pm CT
 - C++ for C Programmers - February 18th, 2021, 9am - 3pm CT
 - MPL Object-Oriented Interface to MPI - February 25th, 2021, 9am - 12pm CT
 - Introduction to Machine Learning at TACC - March 5th, 2021, 9am - 3pm CT
 - Introduction to Deep Learning at TACC - March 12th, 2021, 9am - 3pm CT

Registration for these events closes at 12pm CT the day prior. To register and for more information please visit:

Please email jasona@tacc.utexas.edu if you have any questions.

Longhorn Maintenance Tuesday 19 January 2021

Posted by Matthew Edeker on Jan 8, 2021 2:05:31 PM

Longhorn will be not be available from 8:00 AM to 5:00 PM (CST) on Tuesday, January 19, 2021. System maintenance will be performed during this time.

Please submit any questions you may have via the TACC User Portal. 

Updated on Jan 20, 2021 8:02:11 AM

Longhorn is now back in production.

Original Posting

Longhorn will be not be available from 8:00 AM to 5:00 PM (CST) on Tuesday, January 19, 2021. System maintenance will be performed during this time.

Please submit any questions you may have via the TACC User Portal. 

Network Performance Issue

Posted by Garland Whiteside on Dec 22, 2020 1:55:41 AM

TACC staff are investigating a network performance issue which is affecting login process to TACC systems. Staff are working to resolve the problem.

Updated on Dec 22, 2020 2:22:41 AM

TACC Staff has concluded the work on the network performance issue.  The issue has been resolved. 


Thanks, 
TACC Staff.

Original Posting

TACC staff are investigating a network performance issue which is affecting login process to TACC systems. Staff are working to resolve the problem.

Code Performance and Scaling for Frontera Proposals - December 9th, 2020 1:00 PM - 2:30 PM CT

Posted by Jason Allison on Nov 27, 2020 4:43:14 PM

We are pleased to announce the Code Performance and Scaling for Frontera Proposals webinar being held on December 9th, 2020 from 1:00 PM to 2:30 PM CT. During this event we will describe the opportunities for requesting access to both Frontera and Longhorn, provide guidance on how to determine...

We are pleased to announce the Code Performance and Scaling for Frontera Proposals webinar being held on December 9th, 2020 from 1:00 PM to 2:30 PM CT.

During this event we will describe the opportunities for requesting access to both Frontera and Longhorn, provide guidance on how to determine which opportunity is most appropriate for your project, and describe effective scaling techniques found among successful proposal requests.

Registration for this event closes at 12 PM CT on December 9th, 2020. To register please visit:

Please email jasona@tacc.utexas.edu if you have any questions.

Frontera Pathways and LSCP Allocations now open for proposals through November 20

Posted by Jesse Snead on Nov 13, 2020 10:34:49 AM

We are pleased to announce the fourth Frontera Pathways and Frontera Large Scale Community Partnership (LSCP) allocation tracks will remain open through November 20. Resources available for request include Frontera and its GPU subsystem, as well as the Longhorn GPU resource.  Pathways These are...

We are pleased to announce the fourth Frontera Pathways and Frontera Large Scale Community Partnership (LSCP) allocation tracks will remain open through November 20. Resources available for request include Frontera and its GPU subsystem, as well as the Longhorn GPU resource


Pathways

These are small allocations (between 10,000-250,000 SUs per year) to science teams with a strong scientific justification for access to a leadership-class computing resource, but who have not yet demonstrated code readiness to effectively utilize such a resource.


LSCP

These are allocations (between 25,000-1,000,000 SUs per year, up to 3 years) where we can’t strictly characterize the set of experiments to run within a 12-month allocation period, but that line up with a large team or community, a large instrument, or other large NSF investment.


Detailed descriptions of all four Frontera allocation tracks can be found on the Frontera Allocations web page.


How to Submit an Allocation Request

Please begin by reading the Allocations Policy & Submission Guidelines that provides information regarding who is eligible to apply, minimum and maximum allocation sizes, and an outline of the information that is required to be included in your proposal.


After reading the allocations policy and guidelines, you may determine that a startup allocation would be beneficial to do code performance and benchmarking to be incorporated into your Pathways or LSCP proposal. Instructions for obtaining a Startup allocation are included on the policy & guidelines web page.


Please submit any questions you may have through the TACC Consulting System or feedback form.


https://portal.tacc.utexas.edu/tacc-consulting 

https://portal.tacc.utexas.edu/feedback


Thanks,

Tim Cockerill

Director of User Services

Texas Advanced Computing Center

The University of Texas at Austin