User News

Ranch Maintenance 7 March 2017

Posted by Sergio Leal on Feb 24, 2017 2:12:56 PM

TACC’s Ranch will not be available from 8 a.m. to 5:00 p.m. (CST) on Tuesday, March 7th 2017. System maintenance will be performed during this time.

TACC’s Ranch will not be available from 8 a.m. to 5:00 p.m. (CST) on Tuesday, March 7th 2017. System maintenance will be performed during this time.

Lonestar5 Status 20 February 2017

Posted by Sergio Leal on Feb 20, 2017 10:32:27 AM

LS5 is currently unavailable due issues with the home1 filesystem. Login nodes are unavailable and job submissions are not possible. We will provide an update as soon as LS5 becomes available again.

Updated on Feb 21, 2017 1:28:35 PM

LS5 scratch filesystem maintenance is now complete and the queues and login nodes have been reopened. Thank you for your patience

Updated on Feb 20, 2017 1:56:35 PM

We will be having a maintenance window tomorrow, 21 February 2017, between 12:00pm and 2:00pm CST.  We require this window to improve some of the issues we experienced on /scratch created from our power event this morning.  We apologize for this short notice as any jobs that overlap during this timeframe tomorrow will be removed.

Updated on Feb 20, 2017 1:06:04 PM

We've returned LS5 to production. Please note that if you are a user that uses login nodes other than login1,login2 and login3 then you should hold off on submitting jobs, work is still being done on those other nodes. 

Original Posting

LS5 is currently unavailable due issues with the home1 filesystem. Login nodes are unavailable and job submissions are not possible. We will provide an update as soon as LS5 becomes available again.

Lonestar5 Status February 16, 2017

Posted by David Littrell on Feb 16, 2017 4:12:26 PM

We've been unable to recover from lustre issues on LS5 today and are about to start a system maintenance in order to restore access. We've been trying to avoid interfering with running jobs but this maintenance will remove currently running jobs.

Thanks for your patience

Updated on Feb 16, 2017 11:48:43 PM

LS5 has been returned to production and the queues are open. We apologize for the inconvenience.

Original Posting

We've been unable to recover from lustre issues on LS5 today and are about to start a system maintenance in order to restore access. We've been trying to avoid interfering with running jobs but this maintenance will remove currently running jobs.

Thanks for your patience

Lonestar 5 Status 2/16

Posted by Lucas Nopoulos on Feb 16, 2017 2:15:56 PM

LS5 was not able to access /work between 12:45 and 13:50 today when the issue was resolved. This  would have affected jobs reading and writing to that filesystem, users should check their output. Any jobs timing out will be cleared over the next few hours. Apologies for any inconvenience caused....

LS5 was not able to access /work between 12:45 and 13:50 today when the issue was resolved. This  would have affected jobs reading and writing to that filesystem, users should check their output. Any jobs timing out will be cleared over the next few hours. Apologies for any inconvenience caused.


Thanks

TACC Team

Designing and Administering Large-scale Systems

Posted by Jason Allison on Feb 9, 2017 2:21:27 PM

Designing and Administering Large-scale Systems April 17-21, 2017 Register: https://www.tacc.utexas.edu/education/institutes/designing-and-administering-large-scale-systems The TACC Designing and Administering Large-scale Systems institute provides attendees who already have some knowledge in...

Designing and Administering Large-scale Systems
April 17-21, 2017

Register: https://www.tacc.utexas.edu/education/institutes/designing-and-administering-large-scale-systems

The TACC Designing and Administering Large-scale Systems institute provides attendees who already have some knowledge in administering Linux servers with an introduction to the concepts, tools, and best practices to administer large-scale Linux-based clusters and data center installations. Attendees will build small-scale clusters using the same tools and practices used by TACC systems administrators. Certificates of attendance will be provided to all attendees.

Topics covered:
- System Design and the Top500
- Provisioning nodes using Cobbler
- Server synchronization using LoSF
- Resource management and job control using SLURM
- User environment management using LMod
- Software usage tracking using XALT
- Application packing using RPM
- Securing access to large-scale systems

Stampede status 21 February 2017

Posted by David Littrell on Feb 7, 2017 2:33:25 PM

Stampede will not be available from 8 a.m. to 7:30 p.m. (CT) on Tuesday, 
21 February 2017. System maintenance will be performed during this time.

Stampede will not be available from 8 a.m. to 7:30 p.m. (CT) on Tuesday, 
21 February 2017. System maintenance will be performed during this time.

Ranch Announcement 2.1.17

Posted by Lucas Nopoulos on Feb 1, 2017 10:58:08 AM

A Ranch server was rebooted around 10:50AM CST, and will be down for a short time, while administrators sort the problem out. We will update this announcement when the system is back in full production.

 

- TACC Team

Updated on Feb 1, 2017 11:28:28 AM

Ranch is now back in full production


- TACC Team

Original Posting

A Ranch server was rebooted around 10:50AM CST, and will be down for a short time, while administrators sort the problem out. We will update this announcement when the system is back in full production.

 

- TACC Team

MATLAB License Server Maintenance Jan 29

Posted by Chris Hempel on Jan 28, 2017 8:57:44 AM

Users will be unable to access MATLAB on Sunday, January 29 from noon to 2 PM (CST). License server maintenance will take place during this time.

Please submit any questions regarding this issue via the TACC User Portal:
https://portal.tacc.utexas.edu/tacc-consulting


Users will be unable to access MATLAB on Sunday, January 29 from noon to 2 PM (CST). License server maintenance will take place during this time.

Please submit any questions regarding this issue via the TACC User Portal:
https://portal.tacc.utexas.edu/tacc-consulting


Ranch status 1/25/2017

Posted by David Littrell on Jan 25, 2017 10:16:20 AM

Ranch servers experienced a problem around 10:00AM CST, and will be down for a short time, while administrators sort the problem out. We will update this announcement when the system is back in full production.

Updated on Jan 25, 2017 11:15:33 AM

Ranch is back in production.

Original Posting

Ranch servers experienced a problem around 10:00AM CST, and will be down for a short time, while administrators sort the problem out. We will update this announcement when the system is back in full production.

Lonestar 5 Maintenance 1/24

Posted by Lucas Nopoulos on Jan 18, 2017 1:52:57 PM

LoneStar5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 24 January 2017. System maintenance will be performed during this time.


-TACC Staff

Updated on Jan 24, 2017 4:09:54 PM

Maintenance is complete. Queues and login nodes are now available.


-TACC Team

Original Posting

LoneStar5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 24 January 2017. System maintenance will be performed during this time.


-TACC Staff

Wrangler/Corral Status 1/24/19

Posted by Jacob Getz on Jan 24, 2017 9:19:41 AM

Corral3 will be undergoing maintenance today and will not be available on Wrangler. Because some Wrangler users might not subscribe to the Corral3 mailing list, we are issuing a second announcement. Apologies for the late notice.


Thank you,


-TACC Staff

Corral3 will be undergoing maintenance today and will not be available on Wrangler. Because some Wrangler users might not subscribe to the Corral3 mailing list, we are issuing a second announcement. Apologies for the late notice.


Thank you,


-TACC Staff

Introduction To The PETSc Library

Posted by Jason Allison on Jan 23, 2017 3:46:01 PM

February 10th, 2017 9am-4pm CT Texas Advanced Computing Center ACB 1.104 J.J. Pickle Research Campus 10100 Burnet Rd. Austin, TX 78758 The Portable Extendible Toolkit for Scientific Computing (PETSc) provides a framework for the development of computational science codes. Its focus is on solving...

February 10th, 2017 9am-4pm CT
Texas Advanced Computing Center
ACB 1.104
J.J. Pickle Research Campus
10100 Burnet Rd. Austin, TX 78758

The Portable Extendible Toolkit for Scientific Computing (PETSc) provides a framework for the development of computational science codes. Its focus is on solving linear and nonlinear systems, but it is more than a collection of algorithms: it is a complete toolkit supporting parallel data structures, linear algebra, PDEs, meshes. PETSc is designed for scalable parallelism, and contains debugging and profiling support.

This course will discuss the basic PETSc objects and how they make up a PETSc code. Upon completion of this course, you should be able to independently develop scalable scientific simulation codes with the PETSc library.

For more information and for access to register for this course, please visit the following link:

https://portal.tacc.utexas.edu/training#/user?training=upcoming

Wrangler status January 19 2017

Posted by David Littrell on Jan 19, 2017 3:18:08 PM

Wrangler currently has another issue with the /data filesystem - we are attending to it and expect it to be resolved shortly.


Updated on Jan 19, 2017 3:46:34 PM

Wrangler's filesystem issue is resolved and /data is restored. Apologies for the inconvenience.

Original Posting

Wrangler currently has another issue with the /data filesystem - we are attending to it and expect it to be resolved shortly.


Corral Maintenance 1/24

Posted by Lucas Nopoulos on Jan 18, 2017 1:57:36 PM

We will be performing hardware maintenance from 10AM to 2PM on January 24, 2017. All Corral file access mechanisms including web and iRODS services will be unavailable during this time.


Thank you,


-TACC Staff

We will be performing hardware maintenance from 10AM to 2PM on January 24, 2017. All Corral file access mechanisms including web and iRODS services will be unavailable during this time.


Thank you,


-TACC Staff

Ranch Status 13 January 2017

Posted by Sergio Leal on Jan 13, 2017 3:36:10 PM

Ranch is currently experiencing tape library problems.  Administrators are working with our vendors for a resolution.  Further updates will posted as they become available.

Updated on Jan 14, 2017 8:08:44 PM

Ranch is back up as of 8pm 1/14/17, after the software problem was resolved.

Original Posting

Ranch is currently experiencing tape library problems.  Administrators are working with our vendors for a resolution.  Further updates will posted as they become available.

Courses on Manycore Programming (KNL)

Posted by Jason Allison on Jan 12, 2017 4:37:29 PM

On February 3rd, 2017; TACC will be offering a morning introductory course and an afternoon advanced course on Manycore concepts (KNL). You are welcome to register for either or both courses. Both of the courses are available to in-person and webcast participants. Local participants are strongly...

On February 3rd, 2017; TACC will be offering a morning introductory course and an afternoon advanced course on Manycore concepts (KNL).

You are welcome to register for either or both courses. Both of the courses are available to in-person and webcast participants. Local participants are strongly encouraged to attend in person. For details on course content and for access to register for these courses, please visit the following link:

https://portal.tacc.utexas.edu/training#/user?training=upcoming

Lonestar5 Status January 4, 2017

Posted by David Littrell on Jan 4, 2017 2:01:44 PM

LS5 has had a hardware failure in infrastructure supporting the Slurm scheduler. We are working to resolve the problem. The queues are currently unavailable, apologies for the inconvenience. 

Updated on Jan 5, 2017 11:25:26 PM

Lonestar5 has been returned to production and is available for job submissions. Unfortunately it was not possible to preserve the state of the queue so any jobs that were queuing will have to be resubmitted. Apologies for the inconvenience caused.

Original Posting

LS5 has had a hardware failure in infrastructure supporting the Slurm scheduler. We are working to resolve the problem. The queues are currently unavailable, apologies for the inconvenience. 

Ranch status 12/23/2016

Posted by David Littrell on Dec 23, 2016 10:29:25 PM

Due to a hardware issue on the tape library, Ranch will be under maintenance until Saturday, December 24. 

Updated on Jan 2, 2017 10:58:11 AM

Ranch is back in full production as of 5:50pm CST on Monday, Dec. 26.

Original Posting

Due to a hardware issue on the tape library, Ranch will be under maintenance until Saturday, December 24. 

TACC Holiday Schedule

Posted by Jesse Snead on Dec 21, 2016 8:36:36 AM

TACC personnel will observe the University of Texas at Austin winter break from 5 p.m. (CT) on Thursday, 22 December 2016, and will resume normal business hours on Monday, 2 January 2017. A staff member will be on site to monitor the status of all TACC resources in an effort to ensure continuous...

TACC personnel will observe the University of Texas at Austin winter break from 5 p.m. (CT) on Thursday, 22 December 2016, and will resume normal business hours on Monday, 2 January 2017. A staff member will be on site to monitor the status of all TACC resources in an effort to ensure continuous availability. TACC support staff will monitor the consulting system throughout the holiday period and answer critical user questions. Non-critical user questions will be addressed beginning Monday, 2 January 2017.


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

Ranch Status 16 December 2016

Posted by Sergio Leal on Dec 16, 2016 9:52:05 AM

Ranch is currently experiencing a hardware issue at the backend library

interface. TACC administrators are working to resolve the issue as soon

as possible.  An update to User News will be posted once Ranch is back

in production.

Updated on Dec 16, 2016 2:42:09 PM

Ranch is back in service as of 14:40 CST.

Original Posting

Ranch is currently experiencing a hardware issue at the backend library

interface. TACC administrators are working to resolve the issue as soon

as possible.  An update to User News will be posted once Ranch is back

in production.

Matlab License Server Maintenance Dec. 15th 6pm CT

Posted by Jason Allison on Dec 13, 2016 2:52:31 PM

Academic Technology Support (ATS) systems of University of Texas at Austin has scheduled a maintenance window for Matlab license servers on Thursday, 12/15/16 at 6PM in order to install Operating System/Security Patches. This maintenance is expected to take about 180 minutes to complete. Users, who...

Academic Technology Support (ATS) systems of University of Texas at Austin has scheduled a maintenance window for Matlab license servers on Thursday, 12/15/16 at 6PM in order to install Operating System/Security Patches. This maintenance is expected to take about 180 minutes to complete. Users, who work with UT Austin Matlab license, may be unable to access services dependent on these servers while the maintenance is being performed.

If you any questions regarding this notification please submit a ticket at:
https://portal.tacc.utexas.edu/tacc-consulting

Visualization Portal Status 8 December 2016

Posted by Sergio Leal on Dec 8, 2016 1:16:38 PM

The vis portal is currently offline and the administrators are working on a solution.  We do not have an ETA but command-line launch of job.vnc on systems still work as expected.

Updated on Dec 8, 2016 3:51:34 PM

The vis portal is back to normal operation

Original Posting

The vis portal is currently offline and the administrators are working on a solution.  We do not have an ETA but command-line launch of job.vnc on systems still work as expected.

Lonestar 5 Maintenance 29 November 2016

Posted by Sergio Leal on Nov 23, 2016 6:25:48 PM

Lonestar5 will not be available from 8 a.m. to 6:00 p.m. (CT) on Tuesday, 29 November 2016. Maintenance on filesystem hardware will be performed during this time.

Updated on Nov 29, 2016 6:32:21 PM

Our estimated extension only required 30minutes - Lonestar5 queues and login nodes have been reopened as of 6:30 p.m (CT).

-TACC Team

Updated on Nov 29, 2016 3:15:42 PM

LoneStar5 maintenance window will run an estimated 2 hours longer than originally planned. New times are: 8 a.m. to 8:00 p.m. (CT).


-TACC Team

Original Posting

Lonestar5 will not be available from 8 a.m. to 6:00 p.m. (CT) on Tuesday, 29 November 2016. Maintenance on filesystem hardware will be performed during this time.

Stampede Maintenance 6 December 2016

Posted by Sergio Leal on Nov 22, 2016 3:30:13 PM

Stampede will not be available from 8 a.m. to 7:30 p.m. (CT) on Tuesday,
6 December 2016. System maintenance will be performed during this time.

Stampede will not be available from 8 a.m. to 7:30 p.m. (CT) on Tuesday,
6 December 2016. System maintenance will be performed during this time.

Hikari Maintenance 6-9 December 2016

Posted by Sergio Leal on Nov 22, 2016 3:28:39 PM

Hikari will not be available from 8 a.m. (CT) on Tuesday December 6 thru 5 p.m. (CT)  thru Friday 9 December for HVDC maintenance.

Hikari will not be available from 8 a.m. (CT) on Tuesday December 6 thru 5 p.m. (CT)  thru Friday 9 December for HVDC maintenance.

Introducing the TACC Institute Series

Posted by Jason Allison on Nov 16, 2016 4:04:32 PM

The TACC Institute Series offers attendees five days of intense, immersive training in advanced computation, with topics ranging from developing parallel applications for modern high performance computers to visualizing and analyzing large data sets, administering leadership-class advanced...

The TACC Institute Series offers attendees five days of intense, immersive training in advanced computation, with topics ranging from developing parallel applications for modern high performance computers to visualizing and analyzing large data sets, administering leadership-class advanced computing systems, executing reproducible experiments in the cloud, and purchasing and operating considerations for organizations wanting to add advanced computing resources to their R&D portfolio. 


Here is a list of the institutes currently scheduled:

 

Designing and Administering Large-scale Systems - April 17-21, 2017

Computational Techniques for Life Sciences - June 5-10, 2017

Visualizing and Interacting with Data - June 19-24, 2017

Data and Information Analytics - June 19-24, 2017

Computational Science in the Cloud - July 24-29, 2017

Parallel Programming Foundations - July 31-August 4, 2017

Advanced Computing Concepts for Managers - September 11-15, 2017

 

Please visit the following link for details and to register.  We look forward to your attendance.

https://www.tacc.utexas.edu/education/institutes

Lonestar 5 Maintenance 11/22

Posted by Lucas Nopoulos on Nov 10, 2016 3:49:40 PM

LoneStar5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 22 November 2016. Maintenance on filesystem hardware will be performed during this time.


-TACC Team

LoneStar5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 22 November 2016. Maintenance on filesystem hardware will be performed during this time.


-TACC Team

Stampede Status 9 November 2016

Posted by Sergio Leal on Nov 9, 2016 10:32:10 AM

Stampede is currently experiencing a HOME filesystem issue. TACC

administrators are working to resolve the problem as quickly as possible.

Updated on Nov 9, 2016 10:44:09 AM

The $HOME filesystem was down from 10:08 to 10:40 am CST. It is now back online. 

Original Posting

Stampede is currently experiencing a HOME filesystem issue. TACC

administrators are working to resolve the problem as quickly as possible.

Lonestar Status 11/04/16

Posted by Jacob Getz on Nov 4, 2016 12:16:36 PM

There will be a brief file system outage today at 1:30.   


TACC networking team need to swap out a failing optical connecter.  Service may be interrupted for a few moments, but clients should recover mount points.   

 

Look to user news for updates.

-TACC Team

There will be a brief file system outage today at 1:30.   


TACC networking team need to swap out a failing optical connecter.  Service may be interrupted for a few moments, but clients should recover mount points.   

 

Look to user news for updates.

-TACC Team

Wrangler Status 11/08/16

Posted by Jacob Getz on Oct 31, 2016 9:11:02 AM

Wrangler's service nodes will not be available from 8:00 a.m. to 2:00 p.m. (CST) on Tuesday, November 8th 2016. System maintenance will be performed during this time. Login and compute will remain available and jobs that do not depend on databases running on the service nodes will not be affected....

Wrangler's service nodes will not be available from 8:00 a.m. to 2:00 p.m. (CST) on Tuesday, November 8th 2016. System maintenance will be performed during this time. Login and compute will remain available and jobs that do not depend on databases running on the service nodes will not be affected.

-TACC Team

TACC VIS Lab Closed 31 October 2016

Posted by Sergio Leal on Oct 27, 2016 9:11:02 AM

 The Vislab will be closed Monday October 31st, 2016. Our full time staff will be up north that day performing work for our other vislab. We will reopen our doors at 9 a.m. Tuesday morning.

 The Vislab will be closed Monday October 31st, 2016. Our full time staff will be up north that day performing work for our other vislab. We will reopen our doors at 9 a.m. Tuesday morning.

Stampede Status 10/26/2016

Posted by Lucas Nopoulos on Oct 26, 2016 10:11:58 AM

The TACC data center experienced a power loss on one phase of the primary electrical feed at approximately 9:35 this morning which caused about 2/3rd of the Stampede nodes to shut down.   The storage systems and login nodes are available but the queues are currently closed while we restore the...

Updated on Oct 26, 2016 2:12:20 PM

Stampede is back in production at 1:30 pm cst. 

Original Posting

The TACC data center experienced a power loss on one phase of the primary electrical feed at approximately 9:35 this morning which caused about 2/3rd of the Stampede nodes to shut down.   The storage systems and login nodes are available but the queues are currently closed while we restore the compute nodes to service.   An update to user news will be posted once queues are available again.


-TACC Team

Lonestar5 Status 10/26/2016

Posted by Lucas Nopoulos on Oct 26, 2016 10:21:15 AM

The TACC data center experienced a power loss on one phase of the primary electrical feed at approximately 9:35 this morning which caused Lonestar 5 to shut down.   Access to the storage systems and login nodes will be intermittent until all services are restored.   An update to user news will be...

Updated on Oct 26, 2016 2:07:40 PM

Lonestar is back in production at 1:30 pm cst. 

Original Posting

The TACC data center experienced a power loss on one phase of the primary electrical feed at approximately 9:35 this morning which caused Lonestar 5 to shut down.   Access to the storage systems and login nodes will be intermittent until all services are restored.   An update to user news will be posted once the system is available again.

-TACC Team

System Maintenance October 25, 2016

Posted by Lucas Nopoulos on Oct 20, 2016 12:53:31 PM

Wrangler's service nodes will not be available from 8 a.m. to 2:00 p.m. (CT) on Tuesday, 25 October 2016. System maintenance will be performed during this time. This maintenance will not affect either the login node or the compute nodes and therefore the queues will remain open. However if your job...

Updated on Oct 25, 2016 10:37:18 AM

Issues related to the login node and compute nodes are now resolved and access to login1 has been restored. Maintenance on the service nodes will continue

-TACC Team

Updated on Oct 25, 2016 9:44:33 AM

Due to unforeseen changes that are required on login1 we have restricted access to login1.wrangler.tacc.utexas.edu for, at most, the duration of today's maintenance. Currently running jobs will not be affected.

-TACC Team

Original Posting

Wrangler's service nodes will not be available from 8 a.m. to 2:00 p.m. (CT) on Tuesday, 25 October 2016. System maintenance will be performed during this time. This maintenance will not affect either the login node or the compute nodes and therefore the queues will remain open. However if your job depends on any of the databases or other services provided by the service nodes then please avoid running jobs during this time.

Lonestar 5 Maintenance 1 November 2016

Posted by Sergio Leal on Oct 24, 2016 3:48:00 PM

Lonestar 5 will not be available from 8 a.m. to 5:30 p.m. (CST) on Tuesday,  November 1st,  2016. System maintenance will be performed during this time.

Lonestar 5 will not be available from 8 a.m. to 5:30 p.m. (CST) on Tuesday,  November 1st,  2016. System maintenance will be performed during this time.

Lonestar Status 10/13/16

Posted by Jacob Getz on Oct 13, 2016 12:29:59 PM

There's a filesystem issue on Lonestar 5 login1 and it will need to be rebooted. This will occur at 1 PM CST. Users can connect to another login node if  necessary.  Please submit any questions you may have through the TACC Consulting System or feedback form. ...

There's a filesystem issue on Lonestar 5 login1 and it will need to be rebooted. This will occur at 1 PM CST. Users can connect to another login node if  necessary. 


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

Stampede KNL Nodes Now Available

Posted by Jesse Snead on Oct 6, 2016 3:57:13 PM

We are pleased to announce that Stampede's new Knights Landing (KNL) upgrade is now available for production use by all users with Stampede allocations. The KNL upgrade prepares the way for Stampede 2 by introducing second-generation MIC technology to Stampede. The upgrade adds to the existing...

We are pleased to announce that Stampede's new Knights Landing (KNL) upgrade is now available for production use by all users with Stampede allocations. The KNL upgrade prepares the way for Stampede 2 by introducing second-generation MIC technology to Stampede. The upgrade adds to the existing Stampede system a total of 508 Intel Xeon Phi 7250 KNL compute nodes that boost Stampede's performance by an additional 1.2 petaflops. The KNL represents a radical break with the first generation Knights Corner (KNC) MIC coprocessor. Unlike the older KNC coprocessor, each Stampede KNL is a stand-alone processor that is the sole processor in its node. Intel refers to the KNLs as self-hosted or self-boot processors.

The new KNL nodes and the older Sandy Bridge nodes in the main Stampede cluster share the same three Lustre file systems. In most other ways, however, the KNL nodes form a largely independent cluster distinct from the original Sandy Bridge cluster. The KNL cluster has a dedicated Haswell login node (login-knl1.stampede.tacc.utexas.edu), a separate OmniPath network, a KNL-compatible software stack, its own SLURM scheduler, and KNL-specific queues.

The updated Stampede User Guide https://portal.tacc.utexas.edu/user-guides/stampede now reflects the KNL upgrade. A self-contained KNL section near the end of the updated user guide amounts to a Quick Start for those already familiar with Stampede. We also recommend consulting the training materials, tutorials, and hands-on exercises linked to in the References section. Finally, be sure to consult Intel references, especially the rich collection accessible through the Intel Developer Zone.

A few administrative notes:
  • Note that the KNL upgrade adds new nodes (and new capabilities) to the system, but leaves the original Stampede hardware intact. The Sandy Bridge nodes and their legacy KNC coprocessors remain available to all users.
  • Note that all Stampede users have access to KNL - there are no special permissions or allocations required.
  • Access to login-knl1 requires Multi-Factor Authentication (MFA). Users can create an MFA pairing on the TACC User Portal. After logging in, go to your account profile (Home->Account Profile), then click the "Manage" button under "Multi-Factor Authentication" on the right side of the page. Please see Multi-Factor Authentication at TACC for more information and instructions.
  • Despite the fact that KNL has 68 cores per node, your allocation will be charged the lower rate of 16 SUs per KNL node-hour (the same charge as a Sandy-Bridge node-hour). It may take a few days for charges from this week's KNL jobs to show up in your allocation balance.
Thank you for your interest in TACC, and best wishes in your work on KNL.

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

Lonestar 5 Maintenance 11 Oct 2016

Posted by Sergio Leal on Oct 4, 2016 8:29:16 AM

Lonestar 5 will not be available from 8 a.m. to 5:30 p.m. (CST) on Tuesday, 11 October 2016. System maintenance will be performed during this time.

Lonestar 5 will not be available from 8 a.m. to 5:30 p.m. (CST) on Tuesday, 11 October 2016. System maintenance will be performed during this time.

TACC Vislab closed October 11, 2016

Posted by Jesse Snead on Oct 3, 2016 12:25:54 PM

The TACC Vislab will be closed Tuesday, October 11, 2016. 

Please submit any questions that you may have via the TACC Consulting System. http://portal.tacc.utexas.edu/consulting/

The TACC Vislab will be closed Tuesday, October 11, 2016. 

Please submit any questions that you may have via the TACC Consulting System. http://portal.tacc.utexas.edu/consulting/

Wrangler Maintenance Tuesday 4 Oct 2016

Posted by Sergio Leal on Oct 3, 2016 11:01:49 AM

Wrangler's queues will not be available Tuesday October 4, 2016 between 8:00am and 5:30pm CST.  Upgrades will be performed to parts of the software stack and the DSSD nodes.  User's will be able to login to the system, but will not be able to submit jobs to the queue.  



Wrangler's queues will not be available Tuesday October 4, 2016 between 8:00am and 5:30pm CST.  Upgrades will be performed to parts of the software stack and the DSSD nodes.  User's will be able to login to the system, but will not be able to submit jobs to the queue.  



Lonestar 5 Status September 27 2016

Posted by Sergio Leal on Sep 27, 2016 12:30:07 PM

The $SCRATCH filesystem is down on Lonestar 5.  The administrators are working with the vendor to resolve it.  We will provide further ETA on the resolution as it becomes available.

Updated on Sep 28, 2016 12:17:27 PM

Lonestar5 is back in full production as of 2:17pm 9/27/16

Original Posting

The $SCRATCH filesystem is down on Lonestar 5.  The administrators are working with the vendor to resolve it.  We will provide further ETA on the resolution as it becomes available.

Lonestar Status 9/21/16

Posted by Jacob Getz on Sep 21, 2016 5:51:04 PM

Lonestar 5 is back in production.    The slurm job state files were corrupted during the maintenance. All reservations, and queued jobs were lost. Job ids have reset, jobs names will start in the single digits and any reservation submitted job will need to be re-scheduled.  Please direct any...

Lonestar 5 is back in production.   

The slurm job state files were corrupted during the maintenance. All reservations, and queued jobs were lost. Job ids have reset, jobs names will start in the single digits and any reservation submitted job will need to be re-scheduled. 

Please direct any questions to the TACC portal ticketing system. https://portal.tacc.utexas.edu/consulting

Lonestar5 Status September 20 2016

Posted by David Littrell on Sep 14, 2016 8:49:09 AM

Lonestar 5 will be down for maintenance Tuesday, September 20 from 8 am to 5:30 pm, CST. 

Updated on Sep 21, 2016 1:25:18 PM

Login nodes will be open at 2:00 pm CST. Users will not be able to submit jobs, but they will be able to log in and compile code. Queues will be opened after further maintenance.

Updated on Sep 20, 2016 7:59:19 PM

Maintenance is running past our projected timeline and our ETA is the following day in the morning. 


Thank you

Original Posting

Lonestar 5 will be down for maintenance Tuesday, September 20 from 8 am to 5:30 pm, CST. 

TACC Training Events for the Month of October

Posted by Jason Allison on Sep 16, 2016 3:54:42 PM

The following courses are being offered by Texas Advanced Computing Center next month.  Please visit the following link for more information and to register. https://portal.tacc.utexas.edu/training/ Data Analysis With Hadoop And Spark - Oct. 14-15, 2016 Introduction to Scientific Visualization -...

The following courses are being offered by Texas Advanced Computing Center next month.  Please visit the following link for more information and to register.


Data Analysis With Hadoop And Spark - Oct. 14-15, 2016
Introduction to Scientific Visualization - Oct. 21-22, 2016
OpenMP Programming - Oct. 27-28, 2016

Lonestar 5 Large Memory Queues

Posted by Jesse Snead on Sep 14, 2016 9:52:34 AM

The Lonestar 5 large memory queues are now available. Eight 512GB Haswell nodes are available to all users through the largemem512GB queue. Two 1TB Ivy Bridge nodes are available to approved users through the largemem1TB queue. These large memory compute nodes are accessible from the standard LS5...

The Lonestar 5 large memory queues are now available. Eight 512GB Haswell nodes are available to all users through the largemem512GB queue. Two 1TB Ivy Bridge nodes are available to approved users through the largemem1TB queue. These large memory compute nodes are accessible from the standard LS5 login nodes, but in many ways they form a largely independent cluster with its own Infiniband connectivity, Slurm scheduler, queues, and software stack. The TACC-largemem module provides access to the large memory nodes. 


Please see the Using the Large Memory Nodes section of the Lonestar 5 User Guide for instructions on using these special queues.  Note that the new documentation associated with the large memory queues is significantly different than the original descriptions that appeared in earlier releases of the User Guide. 

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

Ranch Status Tuesday September 13 2016

Posted by Sergio Leal on Sep 13, 2016 11:35:34 AM

TACC’s Ranch system had a firmware update this morning (9/13/16), which required an unexpected reboot of the master node. Users may have noticed a brief file system hang, but everything is back in production now.

 

Please let us know if you have and problems or any questions.

TACC’s Ranch system had a firmware update this morning (9/13/16), which required an unexpected reboot of the master node. Users may have noticed a brief file system hang, but everything is back in production now.

 

Please let us know if you have and problems or any questions.

Stampede Status 9/20

Posted by Jacob Getz on Sep 12, 2016 9:57:53 AM

Stampede will not be available from 8 AM to 7:30 PM (CST) on Tuesday, September 20th, 2016. Administrators will perform system maintenance during this time.

 

Please direct any questions to the TACC portal ticketing system. https://portal.tacc.utexas.edu/consulting

Stampede will not be available from 8 AM to 7:30 PM (CST) on Tuesday, September 20th, 2016. Administrators will perform system maintenance during this time.

 

Please direct any questions to the TACC portal ticketing system. https://portal.tacc.utexas.edu/consulting

Corral Maintenance 9/20

Posted by Lucas Nopoulos on Sep 8, 2016 3:12:37 PM

There will be planned maintenance for Corral on September 20, 9AM to 5PM, to complete the upgrade to Corral 3. All Corral file system services will be unavailable on the login node and cluster systems during the outage. If there are questions or concerns, please contact us.


-TACC Team

There will be planned maintenance for Corral on September 20, 9AM to 5PM, to complete the upgrade to Corral 3. All Corral file system services will be unavailable on the login node and cluster systems during the outage. If there are questions or concerns, please contact us.


-TACC Team

R HPC Training

Posted by Jason Allison on Sep 7, 2016 4:13:34 PM

September 30th, 2016 9am-3pm CT Texas Advanced Computing Center  ACB 1.104  J.J. Pickle Research Campus  10100 Burnet Rd. Austin, TX 78758  This training is being offered to provide students information on R and its use here at TACC. Preliminary Agenda: Intro to R  Launch Rstudio using the TACC Vis...

September 30th, 2016 9am-3pm CT
Texas Advanced Computing Center 
ACB 1.104 
J.J. Pickle Research Campus 
10100 Burnet Rd. Austin, TX 78758 

This training is being offered to provide students information on R and its use here at TACC.

Preliminary Agenda:

Intro to R 
Launch Rstudio using the TACC Vis Portal and perform some introductory exercises
R @ TACC
Parallel R 
Wrap-up/Questions

This course is available to in-person and webcast participants. Local participants are strongly encouraged to attend in person. For more information and for access to register for this course, please visit the following link: 

https://portal.tacc.utexas.edu/training#/user?training=upcoming

Stampede Status 9/5/2016

Posted by Lucas Nopoulos on Sep 5, 2016 9:44:09 AM

The Stampede InfiniBand fabric experienced errors with one of the core switches from approximately 7:30 until just after 9:00 this morning.  These errors could have impacted running jobs and users may have encountered hangs trying to access the files from the logins or data transfer nodes.   The...

The Stampede InfiniBand fabric experienced errors with one of the core switches from approximately 7:30 until just after 9:00 this morning.  These errors could have impacted running jobs and users may have encountered hangs trying to access the files from the logins or data transfer nodes.   The problem has been resolved and the InfiniBand fabric is back in normal operation.


TACC Team

TACC Vislab closed September 5 2016

Posted by Sergio Leal on Sep 1, 2016 3:58:56 PM

TACC Vislab will be closed Monday, September 5, in observance of Labor Day.  We will reopen the following day, Tuesday.

TACC Vislab will be closed Monday, September 5, in observance of Labor Day.  We will reopen the following day, Tuesday.