Longhorn User News

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. 

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


Containers @ TACC - 6 November, 2020 9am-3pm

Posted by Jason Allison on Oct 21, 2020 4:00:39 PM

We are pleased to announce the Containers @ TACC Training being held on November 6th, 2020 from 9am to 3pm CT. Software containers are an important common currency for portable and reproducible computing. Learn best practices on building, using, and sharing Docker and Singularity containers in this...

We are pleased to announce the Containers @ TACC Training being held on November 6th, 2020 from 9am to 3pm CT.

Software containers are an important common currency for portable and reproducible computing. Learn best practices on building, using, and sharing Docker and Singularity containers in this hands-on workshop. Also learn how to run those containers on TACC HPC systems, including MPI and GPU aware containers.

Registration for this event closes at 5pm CT on November 4th, 2020. To register please visit:

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

Longhorn System Maintenance Tuesday October 20

Posted by Mark Brueschke on Oct 7, 2020 7:26:21 AM

Longhorn will not be available from 8:00 AM to 5:00 PM (CDT) on Tuesday, October 20 2020. System maintenance will be performed during this time.

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

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

Updated on Oct 20, 2020 3:55:33 PM

The Longhorn maintenance for today has been completed.

Original Posting

Longhorn will not be available from 8:00 AM to 5:00 PM (CDT) on Tuesday, October 20 2020. System maintenance will be performed during this time.

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

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

High Performance Computing on Frontera Training Series - October 2020

Posted by Jason Allison on Aug 20, 2020 9:33:47 AM

This October, TACC is offering training on High Performance Computing (HPC) and parallel programming for Frontera on three separate days. During the first day (10/15) we focus on parallel programming with OpenMP. We provide an introduction to OpenMP in the morning and delve into advanced topics in...

Updated on Sep 23, 2020 1:19:25 PM

Registration for these three training sessions is now open.  Space availability is limited and these courses are in high demand, so please make an attempt to register as soon as possible.


Original Posting

This October, TACC is offering training on High Performance Computing (HPC) and parallel programming for Frontera on three separate days. During the first day (10/15) we focus on parallel programming with OpenMP. We provide an introduction to OpenMP in the morning and delve into advanced topics in the afternoon. On the second day (10/22) the focus shifts to MPI, again covering an introduction and some advanced topics. We also discuss hybrid computing and the interplay between OpenMP and MPI within a single code. On the last day (10/29) we will discuss Parallel I/O, HPC tools, debugging, profiling, and best practices on TACC machines time permitting.  

Each day will have a hands-on component (lab) that will be conducted on Frontera.  

This training sessions will be available to remote attendees via webcast. Dates are tentative and registration for each of the sessions will be opened on learn.tacc.utexas.edu during the second week in September.  An additional announcement will be posted at that time.

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

TACC Network Maintenance Sunday 13 September 2020

Posted by Mark Brueschke on Aug 31, 2020 11:10:31 AM

Access to all TACC systems will be unavailable on Sunday, 13 September 2020 from 10:00 AM CDT until 4:00 PM CDT.  This is to allow for upgrades to the TACC core network hardware. Jobs will continue to run, but users will have no access to TACC services and systems until the upgrade is complete....

Updated on Sep 13, 2020 12:45:12 PM

As of Sunday, 13 Sept 2020 at 12:45 PM (CDT) the network maintenance is complete and services should be available

Original Posting

Access to all TACC systems will be unavailable on Sunday, 13 September 2020 from 10:00 AM CDT until 4:00 PM CDT.  This is to allow for upgrades to the TACC core network hardware. Jobs will continue to run, but users will have no access to TACC services and systems until the upgrade is complete.

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

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

TACC Symposium for Texas Researchers 17-18 September, 2020

Posted by Jason Allison on Aug 31, 2020 12:34:35 PM

Last chance to register (deadline Sep 4) for the TACC Symposium for Texas Researchers (TACCSTER) being held on September 17-18, 2020 virtually over Zoom and Slack. TACCSTER is a meeting of scientists, engineers, and scholars from across the state who use and would like to use the Texas Advanced...

Last chance to register (deadline Sep 4) for the TACC Symposium for Texas Researchers (TACCSTER) being held on September 17-18, 2020 virtually over Zoom and Slack.

TACCSTER is a meeting of scientists, engineers, and scholars from across the state who use and would like to use the Texas Advanced Computing Center (TACC) to advance their research goals. Researchers from across the country are welcome to attend. This meeting will be an opportunity for you to:

- Showcase your ongoing research involving TACC resources
- Learn new and useful computing skills from a variety of tutorials
- Network with other TACC users/researchers
- Hear information about the latest TACC systems and services

To register and for more information please visit: https://www.tacc.utexas.edu/taccster

Please contact taccster@tacc.utexas.edu if you have any questions.

Longhorn Status Friday 14 August 2020

Posted by Matthew Edeker on Aug 14, 2020 10:23:48 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.


Updated on Aug 14, 2020 1:49:22 PM

Longhorn is now back in production.

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

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.


TACC Authentication Issues Monday 20 July 2020

Posted by Mark Brueschke on Jul 20, 2020 11:39:12 AM

Users who attempt to authenticate with SMS are receiving an error authenticating. As of as of 11:25 AM (CDT) we are aware of the issue and currently investigating the issue and a solution.

Users who use the TACC token are not affected.

Updated on Jul 20, 2020 10:09:26 PM

SMS multi-factor authentication has been restored. 

Original Posting

Users who attempt to authenticate with SMS are receiving an error authenticating. As of as of 11:25 AM (CDT) we are aware of the issue and currently investigating the issue and a solution.

Users who use the TACC token are not affected.

TACC Authentication Issues Sunday 19 July 2020

Posted by Mark Brueschke on Jul 19, 2020 3:25:11 PM

We are currently experiencing an issue with authentication to TACC systems following the network maintenance, as of 3:15 PM (CDT) MFA and VPN are offline and work continues to restore those services.

Updated on Jul 19, 2020 10:15:25 PM

Login and MFA issues have been resolved. 

Original Posting

We are currently experiencing an issue with authentication to TACC systems following the network maintenance, as of 3:15 PM (CDT) MFA and VPN are offline and work continues to restore those services.