User News

Lonestar5 Status September 20, 2017

Posted by David Littrell on Sep 20, 2017 1:04:16 PM

LoneStar5 has been returned to production and the queues and login nodes are available for use. We apologize for the inconvenience of having extended the maintenance window. We experienced hardware problems with Cray cabinet controllers as well as hardware issues with the /scratch shared...

LoneStar5 has been returned to production and the queues and login nodes are available for use. We apologize for the inconvenience of having extended the maintenance window. We experienced hardware problems with Cray cabinet controllers as well as hardware issues with the /scratch shared filesystem. So please note that there will be performance degradation on /scratch until raid arrays are rebuilt over the next few hours. If possible please limit your IO on /scratch.

Lonestar5 Maintenance 19 September 2017

Posted by Jacob Getz on Sep 5, 2017 3:04:46 PM

LoneStar5 will not be available from 8 a.m. to 12:00 p.m. (CT) on Tuesday, 19 September 2017. Cray patches and field notices will be installed during this maintenance.


-TACC Team

Updated on Sep 19, 2017 4:14:34 PM

Today's Lonestar5 maintenance has been extended beyond the original timeframe. There is currently not an estimated completion time. User News will be updated when more information is available.


-TACC Team

Original Posting

LoneStar5 will not be available from 8 a.m. to 12:00 p.m. (CT) on Tuesday, 19 September 2017. Cray patches and field notices will be installed during this maintenance.


-TACC Team

October 2017 TACC Training Events

Posted by Jason Allison on Sep 15, 2017 4:14:45 PM

I am pleased to announce the following training events are being offered to both in-person and webcast participants for October 2017. Local participants are strongly encouraged to attend in person. 10/4/17 - Introduction To Hadoop And Spark On Wrangler 10/6/17 - MPI Foundations I and MPI...

I am pleased to announce the following training events are being offered to both in-person and webcast participants for October 2017. Local participants are strongly encouraged to attend in person.

10/4/17 - Introduction To Hadoop And Spark On Wrangler
10/6/17 - MPI Foundations I and MPI Foundations II
10/11/17 - Introduction to Scala/Spark
10/18/17 - Data Analysis Using Hadoop/Spark

To register and for more information please visit: https://portal.tacc.utexas.edu/training

Lonestar5 Maintenance 26 September 2017

Posted by Sergio Leal on Sep 14, 2017 9:05:39 AM

LoneStar5 will not be available from 7:00 a.m. to 5:00 p.m. (CT) on Tuesday, 26 September 2017. We will be doing maintenance on the DDN hardware supporting the /scratch filesystem.

LoneStar5 will not be available from 7:00 a.m. to 5:00 p.m. (CT) on Tuesday, 26 September 2017. We will be doing maintenance on the DDN hardware supporting the /scratch filesystem.

Training: Introduction to OpenMP using the Interactive Parallelization Tool (IPT)

Posted by Jason Allison on Aug 24, 2017 4:40:22 PM

September 14th, 2017 1pm-5pm CT Texas Advanced Computing Center ACB 1.104 J.J. Pickle Research Campus 10100 Burnet Rd. Austin, TX 78758 OpenMP is one of the most popular paradigms to exploit the now ubiquitous manycore and multi-core processors. In this beginner-level training session, we will...

Updated on Sep 12, 2017 2:29:55 PM

We still have spaces available for the Introduction to OpenMP using the Interactive Parallelization Tool (IPT) September 14th, 2017. Please register ASAP to avoid missing out on this opportunity.

Original Posting

September 14th, 2017 1pm-5pm CT
Texas Advanced Computing Center
ACB 1.104
J.J. Pickle Research Campus
10100 Burnet Rd. Austin, TX 78758

OpenMP is one of the most popular paradigms to exploit the now ubiquitous manycore and multi-core processors. In this beginner-level training session, we will provide an overview of the basic concepts of OpenMP. We will introduce the trainees to the Interactive Parallelization Tool (IPT) that is designed for parallelizing serial C/C++ programs semi-automatically. The participants in the training session will be introduced to OpenMP and will learn to use IPT for parallelizing their C/C++ applications.

Prerequisites: Experience working in a Linux environment, and familiarity with C/C++/Fortran or any other programming language.

We are offering the training to both in-person and webcast participants. Local participants are strongly encouraged to attend in person.

For more information and to register for either the in-person or webcast session, please visit:
https://portal.tacc.utexas.edu/training#/user?training=upcoming

Corral Maintenance 19 September 2017

Posted by Jacob Getz on Sep 5, 2017 3:06:27 PM

Corral will not be available from 9 a.m. to 2:00 p.m. (CT) on Tuesday, 19 September 2017 while system updates are performed. All Corral file systems, web and iRODS services will be unavailable. Database services will not be affected. 


-TACC Team

Updated on Sep 7, 2017 11:11:25 AM

The Corral login node login1.corral.tacc.utexas.edu will be retired during this maintenance. Users accessing Corral through the SSH/SCP hostname login1.corral.tacc.utexas.edu should update their configurations to use data.tacc.utexas.edu as the target host for SSH sessions and SCP transfers.

Original Posting

Corral will not be available from 9 a.m. to 2:00 p.m. (CT) on Tuesday, 19 September 2017 while system updates are performed. All Corral file systems, web and iRODS services will be unavailable. Database services will not be affected. 


-TACC Team

Wrangler status August 29 2017

Posted by David Littrell on Aug 23, 2017 11:59:50 AM

Wrangler will be unavailable from 8:00am to 5:00pm CST on Tuesday 29 August 2017 for system maintenance.

Updated on Aug 29, 2017 6:03:06 PM

Wrangler is back up in production as of 6:00pm CST, Tuesday 29, August 2017

Updated on Aug 29, 2017 4:31:08 PM

Maintenance on Wrangler has been extended. Currently, there is no ETA for when it will be back up in production. 

Original Posting

Wrangler will be unavailable from 8:00am to 5:00pm CST on Tuesday 29 August 2017 for system maintenance.

Ranch Status 29 August 2017

Posted by Sergio Leal on Aug 29, 2017 10:36:09 AM

Ranch had a hard reboot at 00:35 CST this morning and was partially unavailable from 00:35 until 07:00 CST.  This was due to a system error requiring a full restart of Ranch functionality.

Ranch had a hard reboot at 00:35 CST this morning and was partially unavailable from 00:35 until 07:00 CST.  This was due to a system error requiring a full restart of Ranch functionality.

POB Vislab Closed Monday September 4th, 2017

Posted by Jacob Getz on Aug 28, 2017 1:47:15 PM

The POB Vislab will not be available from 8 Monday, 4th September 2017 in observance of Labor Day. We will reopen our doors Tuesday, September 5th at 9 a.m.


-TACC Team

The POB Vislab will not be available from 8 Monday, 4th September 2017 in observance of Labor Day. We will reopen our doors Tuesday, September 5th at 9 a.m.


-TACC Team

Lonestar5 Status August 29, 2017

Posted by David Littrell on Aug 10, 2017 10:09:32 AM

LoneStar5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 29 August 2017 due to maintenance. 

Updated on Aug 28, 2017 8:32:43 AM

The LoneStar5 maintenance scheduled for 29th Aug is being postponed and a future date is not finalized yet. Please see user news for announcements of future reservations.


-TACC Team

Original Posting

LoneStar5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 29 August 2017 due to maintenance. 

Wrangler Maintenance 22 August 2017

Posted by Jacob Getz on Aug 22, 2017 8:25:28 AM

Wrangler will be unavailable from 8:00am to 5:00pm CST on Tuesday 22 August 2017 for system maintenance.

Updated on Aug 22, 2017 6:39:46 PM

Wrangler has been returned to production as of 6:30pm CST. 

Updated on Aug 22, 2017 4:56:06 PM

Maintenance on Wrangler has taken longer than expected and we hope to have it available by 8:00pm CST on Tuesday 22 August 2017. 

Original Posting

Wrangler will be unavailable from 8:00am to 5:00pm CST on Tuesday 22 August 2017 for system maintenance.

Wrangler Status August 15, 2017

Posted by David Littrell on Aug 9, 2017 11:34:54 AM

We will be having a Wrangler maintenance 8/15 @ 8am-5pm to complete some work on fixing a degraded OSS on the /data Lustre filesystem with Dell On-Site support.

Updated on Aug 15, 2017 3:35:45 PM

Today's Wrangler maintenance has concluded.


-TACC Team

Original Posting

We will be having a Wrangler maintenance 8/15 @ 8am-5pm to complete some work on fixing a degraded OSS on the /data Lustre filesystem with Dell On-Site support.

New Corral Login Node

Posted by Jason Allison on Aug 9, 2017 11:10:15 AM

The Corral login node, accessed as corral.tacc.utexas.edu or login1.corral.tacc.utexas.edu, will soon be retired and replaced with general-purpose “data transfer nodes”, all accessed through the alias data.tacc.utexas.edu. Alongside this transition, the new nodes will require the use of TACC’s...

The Corral login node, accessed as corral.tacc.utexas.edu or login1.corral.tacc.utexas.edu, will soon be retired and replaced with general-purpose “data transfer nodes”, all accessed through the alias data.tacc.utexas.edu. Alongside this transition, the new nodes will require the use of TACC’s multi-factor authentication tokens ( https://portal.tacc.utexas.edu/tutorials/multifactor-authentication).

This transition will allow us to better serve our user community with improved performance, reliability, scaling and security.

The new data transfer nodes are available now for testing, and provide direct access to both the Corral 3 file systems as well as the Stockyard/work file system. These nodes have all the most common file transfer facilities installed, including the iRODS client “i-Commands" and the Globus GridFTP client tools.

If you have automated transfers or otherwise perform large-scale data transfer through the current Corral login node you should test your workflows using the new data transfer nodes as soon as possible.

Note that no data migration from the /home areas of the Corral login node will be performed since those areas are not intended for any significant data storage. If you have configuration or other files stored in $HOME on corral.tacc.utexas.edu then please migrate these files to the data transfer node or another resource in a timely manner to ensure you do not lose any data.

A follow-up notification will be sent in the coming weeks announcing the retirement date for the current Corral login node. Please ensure that you have tested any workflows relying on the current Corral login node with the new infrastructure prior to the final shutdown date.

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

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

Maverick Status 10-12 August 2017

Posted by Sergio Leal on Aug 8, 2017 2:40:20 PM

Maverick is reserved for 48 hours beginning Thursday, 8/10/2017 at 8 AM CDT to support a large-scale, real-time simulation project. During that time, no new jobs will start, but login nodes and filesystems will remain available. Also, jobs that cannot run during this 48-hour window will be held in...

Maverick is reserved for 48 hours beginning Thursday, 8/10/2017 at 8 AM CDT to support a large-scale, real-time simulation project. During that time, no new jobs will start, but login nodes and filesystems will remain available. Also, jobs that cannot run during this 48-hour window will be held in queue until the system resumes production, when they will become eligible to run. Maverick is scheduled to resume normal operations at 8 AM CDT on Saturday, 8/12/2017.


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

Ranch Maintenance 22 August 2017

Posted by Sergio Leal on Aug 7, 2017 9:44:59 AM

Ranch will be unavailable from 8:00am to 8:00pm CST on Tuesday 22 August 2017 for system maintenance.

Ranch will be unavailable from 8:00am to 8:00pm CST on Tuesday 22 August 2017 for system maintenance.

Corral Downtime

Posted by Garland Whiteside on Aug 4, 2017 7:59:30 AM

Corral is down due to hardware issues.  The administrators are working on it and, will have it back as soon as possible.


Thanks,

TACC Team

Updated on Aug 4, 2017 10:44:14 AM

Filesystem has been restored and Corral is back in production.  Please submit a ticket if you are experiencing any problems with any Corral mounts.

Original Posting

Corral is down due to hardware issues.  The administrators are working on it and, will have it back as soon as possible.


Thanks,

TACC Team

Stampede 2 status August 3, 2017

Posted by David Littrell on Aug 3, 2017 10:05:20 AM

The Stampede 2 /scratch filesystem currently has one storage target unavailable which could cause hangs or I/O errors if users try to access files on those targets.  Administrators are working to restore the target and an update to user news will be posted once the problem has been resolved.

Updated on Aug 3, 2017 10:35:56 AM

Stampede2's /scratch filesystem is back in full production.

Original Posting

The Stampede 2 /scratch filesystem currently has one storage target unavailable which could cause hangs or I/O errors if users try to access files on those targets.  Administrators are working to restore the target and an update to user news will be posted once the problem has been resolved.

Lonestar5 Maintenance 1 August 2017

Posted by Sergio Leal on Jul 23, 2017 9:27:18 PM

Lonestar 5 will not be available from 8:00 a.m. to 5:00 p.m. (CT) on Tuesday, 1 August 2017. System maintenance will be performed during this time

Updated on Aug 2, 2017 2:50:04 PM

We are presently testing a resolution to the problems occurring between the external network (e.g. internet, license servers), and LS5 compute nodes. Please let us know if any further issues transpire. Thank you very much for your patience during this extended maintenance period.  

Updated on Aug 1, 2017 8:07:50 PM

LS5 has been returned to production. We apologize for the delay. Unfortunately the rsip service error was not resolvable within a reasonable time-frame and so the rsip errors persist. This means that some compute nodes are still unable to access outside IP addresses. We are able to make some changes towards resolving this while the system is running so please watch user news for updates to this service

Updated on Aug 1, 2017 5:08:32 PM

LS5 is still experiencing issues relating to the rsip server setup. We estimate that this can be solved within a reasonable amount of time and so are extending the LS5 until 23:00.

Original Posting

Lonestar 5 will not be available from 8:00 a.m. to 5:00 p.m. (CT) on Tuesday, 1 August 2017. System maintenance will be performed during this time

Lonestar 5 Status July 25, 2017

Posted by Lucas Nopoulos on Jul 25, 2017 3:36:58 PM

Lonestar 5 has an issue with the scheduler at present - it will be resolved as soon as possible.

-TACC Team

Updated on Jul 25, 2017 3:43:14 PM

This issue has now been resolved and that running and queued jobs were unaffected.

-TACC Team

Original Posting

Lonestar 5 has an issue with the scheduler at present - it will be resolved as soon as possible.

-TACC Team

Lonestar5 status, 20 July 2017

Posted by David Littrell on Jul 20, 2017 10:50:54 AM

LoneStar5 maintenance is being extended due to technical difficulties with the upgrade process. Please see user news for updates on when they system will be returned to production.

Updated on Jul 20, 2017 3:08:32 PM

LoneStar5 has been returned to production. The queues are available; however, Singularity is not available due to kernel updates. This can and will be resolved while the system is operational and an announcement will be made when it has be restored. 

Thank you, 

TACC team

Original Posting

LoneStar5 maintenance is being extended due to technical difficulties with the upgrade process. Please see user news for updates on when they system will be returned to production.

TACC Maintenance 18 July, 2017

Posted by Jacob Getz on Jul 11, 2017 9:47:53 AM

Access to all TACC systems will be unavailable from 7:00 AM CDT on July 18 until 8:00 AM CDT on July 19 to allow for upgrades to the core network switch hardware and to perform system maintenance on the Stockyard global filesystem.   Users will have intermittent access to all TACC services and...

Updated on Jul 19, 2017 6:25:46 PM

The /work filesystem has been restored on all TACC production systems.   All held user jobs have been released from the hold and should be running or queued to run now.
 
Thank you, 

-TACC

Updated on Jul 19, 2017 9:55:21 AM

Maintenance has been extended for the Stockyard global filesystem.  An update will be posted to User News when resources are back in full production.

Original Posting

Access to all TACC systems will be unavailable from 7:00 AM CDT on July 18 until 8:00 AM CDT on July 19 to allow for upgrades to the core network switch hardware and to perform system maintenance on the Stockyard global filesystem.   Users will have intermittent access to all TACC services and systems until the core network switch upgrade is complete.  

During this maintenance window, the production systems Stampede2, Stampede, Lonestar5, Maverick, Wrangler, Ranch, and Hikari will also be down for system maintenance and unavailable to users until after the Stockyard global filesystem maintenance has been completed.   Updates to user news will be sent once network services have been restored and when the production systems are restored to normal operations.

-TACC Team

Stampede 2 status, July 19, 2017

Posted by David Littrell on Jul 19, 2017 10:37:17 AM

The Stampede2 system is back available to users, however, the /work filesystem remains offline for system maintenance.  To prevent queued jobs from failing, all current pending user jobs were held.  If your jobs do not require the /work filesystem, use the command "scontrol release " with...

Updated on Jul 19, 2017 6:23:35 PM

The /work filesystem has been restored on all TACC production systems.   All held user jobs have been released from the hold and should be running or queued to run now.
 
Thank you, 
 
-TACC

Original Posting

The Stampede2 system is back available to users, however, the /work filesystem remains offline for system maintenance.  To prevent queued jobs from failing, all current pending user jobs were held.  If your jobs do not require the /work filesystem, use the command "scontrol release <jobid>" with your specific job numbers in place of <jobid>

Stampede 1 status, July 19, 2017

Posted by David Littrell on Jul 19, 2017 12:08:08 PM

The Stampede1 system is back available to users, however, the /work filesystem remains offline for system maintenance.  To prevent queued jobs from failing, all current pending user jobs were held.  If your jobs do not require the /work filesystem, use the command "scontrol release " with...

Updated on Jul 19, 2017 6:22:39 PM

The /work filesystem has been restored on all TACC production systems.   All held user jobs have been released from the hold and should be running or queued to run now.
 
Thank you,

 - TACC

Original Posting

The Stampede1 system is back available to users, however, the /work filesystem remains offline for system maintenance.  To prevent queued jobs from failing, all current pending user jobs were held.  If your jobs do not require the /work filesystem, use the command "scontrol release <jobid>" with your specific job numbers in place of <jobid>

Ranch status 19 July 2017

Posted by David Littrell on Jul 19, 2017 12:51:33 PM

TACC’s Ranch system is back in production after yesterday’s maintenance as of 12:30PM CST on 7/19/17.

TACC’s Ranch system is back in production after yesterday’s maintenance as of 12:30PM CST on 7/19/17.

Lonestar5 Maintenance 11 July 2017

Posted by Jacob Getz on Jun 26, 2017 9:05:11 AM

LoneStar 5 will not be available from 8 a.m. to 1:00 p.m. (CT) on Tuesday, 11 July 2017. System maintenance will be performed during this time.

-TACC Team

Updated on Jul 11, 2017 12:53:20 PM

 LoneStar 5 is out of maintenance and the queues have been resumed.

Thanks,
TACC Team

Original Posting

LoneStar 5 will not be available from 8 a.m. to 1:00 p.m. (CT) on Tuesday, 11 July 2017. System maintenance will be performed during this time.

-TACC Team

Stampede 2 status, July 7, 2017

Posted by David Littrell on Jul 7, 2017 5:02:04 PM

The Stampede 2 /scratch filesystem currently has two storage targets unavailable which could cause hangs or I/O errors if users try to access files on those targets.  Administrators are working to restore the two targets and an update to user news will be posted once the problem has been resolved.

Updated on Jul 7, 2017 5:48:53 PM

The two storage targets on the /scratch filesystem for Stampede 2 have recovered and queues have been opened again for jobs.

Original Posting

The Stampede 2 /scratch filesystem currently has two storage targets unavailable which could cause hangs or I/O errors if users try to access files on those targets.  Administrators are working to restore the two targets and an update to user news will be posted once the problem has been resolved.

LoneStar5 Maintenance July 18, 2017

Posted by Jacob Getz on Jul 3, 2017 11:30:58 AM

LoneStar5 will not be available from 2017-07-18 7:00:00 until 2017-07-20 12:00:00 (CT). This is in line with the site-wide Stockyard maintenance that was announced, however, LoneStar5 will be receiving another sizable software update similar to the one done in April. We are updating the base OS...

LoneStar5 will not be available from 2017-07-18 7:00:00 until 2017-07-20 12:00:00 (CT). This is in line with the site-wide Stockyard maintenance that was announced, however, LoneStar5 will be receiving another sizable software update similar to the one done in April. We are updating the base OS structure across the system as well as the management infrastructure to bring us up to date with Cray's current software stack.

-TACC Team

Hikari Status June 28, 2017

Posted by David Littrell on Jun 28, 2017 11:18:26 AM

Hikari is currently down for maintenance. Administrators are working on this now.

Updated on Jun 28, 2017 2:10:18 PM

Hikari has been returned to full production. 

Original Posting

Hikari is currently down for maintenance. Administrators are working on this now.

Lonestar5 Status June 28, 2017

Posted by David Littrell on Jun 28, 2017 8:34:19 AM

Lonestar5 is currently down for maintenance. Administrators are working on this now. 

Updated on Jun 28, 2017 12:33:10 PM

LS5 queues have been resumed however some components including login2.ls5.tacc.utexas.edu are still unavailable. Please use login1.ls5.utexas.edu in the interim and we are working to restore all services.

Original Posting

Lonestar5 is currently down for maintenance. Administrators are working on this now. 

TACC Sitewide Power Event 6-23-17

Posted by Jacob Getz on Jun 23, 2017 9:30:03 AM

At 1:15 AM Central Time, TACC and our facilities experienced a power outage. Every TACC system was affected. Power has since been restored. An update will be posted to User News when resources are back in full production.


-TACC Team

Updated on Jun 23, 2017 10:37:04 PM

All TACC systems and services have been restored to normal operation after the power loss this morning.  Please submit a ticket if you encounter any problems with access to TACC systems or services.

Original Posting

At 1:15 AM Central Time, TACC and our facilities experienced a power outage. Every TACC system was affected. Power has since been restored. An update will be posted to User News when resources are back in full production.


-TACC Team

Corral Status 23 June 2017

Posted by Jacob Getz on Jun 23, 2017 3:47:11 PM

All Corral file systems and network services are back in operation, but the login node (corral.tacc.utexas.edu or login1.corral.tacc.utexas.edu) is down and will be replaced as soon as possible. Users can access Corral mount points through login nodes on all additional TACC resources, as they...

All Corral file systems and network services are back in operation, but the login node (corral.tacc.utexas.edu or login1.corral.tacc.utexas.edu) is down and will be replaced as soon as possible. Users can access Corral mount points through login nodes on all additional TACC resources, as they become available again after the power outage. A further announcement will be made when a new login node is available.

-TACC Team

Ranch Status 23 June 2017

Posted by Jacob Getz on Jun 23, 2017 3:42:18 PM

Ranch has recovered from our earlier power outage and is back in production as of 15:30 CST today.

Ranch has recovered from our earlier power outage and is back in production as of 15:30 CST today.

Maverick Satus 23 June 2017

Posted by Sergio Leal on Jun 23, 2017 2:23:17 PM

Maverick has recovered from our earlier power outage and is back in production as of 14:00 CST today.

Maverick has recovered from our earlier power outage and is back in production as of 14:00 CST today.

Lonestar5 Status 23 June 2017

Posted by Sergio Leal on Jun 23, 2017 1:46:58 PM

Following the TACC datacenter power outage this morning, we've restored LS5 to production and the queues are open again. We were dependent on the work filesystem which took some time to restore before we could run our acceptance tests. Thank you for your patience and please submit a ticket if any...

Following the TACC datacenter power outage this morning, we've restored LS5 to production and the queues are open again. We were dependent on the work filesystem which took some time to restore before we could run our acceptance tests. Thank you for your patience and please submit a ticket if any subsystems are unavailable.

TACC status 19 July, 2017

Posted by David Littrell on Jun 21, 2017 11:02:50 AM

Access to all TACC systems will be unavailable from 7:00 AM CDT on July 18 until 8:00 AM CDT on July 19 to allow for upgrades to the core network switch hardware and to perform system maintenance on the Stockyard global filesystem.   Users will have intermittent access to all TACC services and...

Updated on Jun 21, 2017 11:22:47 AM

Jetstream will also be affected. 

Original Posting

Access to all TACC systems will be unavailable from 7:00 AM CDT on July 18 until 8:00 AM CDT on July 19 to allow for upgrades to the core network switch hardware and to perform system maintenance on the Stockyard global filesystem.   Users will have intermittent access to all TACC services and systems until the core network switch upgrade is complete.  During this maintenance window, the production systems Stampede2, Stampede, Lonestar5, Maverick, Wrangler and Hikari will also be down for system maintenance and unavailable to users until after the Stockyard global filesystem maintenance has been completed.   Updates to user news will be sent once network services have been restored and when the production systems are restored to normal operations.

Ranch Status 6/15

Posted by Matthew Edeker on Jun 15, 2017 5:34:31 PM

TACC’s Ranch system experienced a hardware failure around 4:05PM, and the administrators are working to resolve the problem. We will update this announcement when the system is back in production. 


Thanks, TACC Team

Updated on Jun 16, 2017 8:05:37 AM

TACC's Ranch system has been restored to production as of 6:15AM this morning.  Please let us know if you run into any issues. – TACC Team

Original Posting

TACC’s Ranch system experienced a hardware failure around 4:05PM, and the administrators are working to resolve the problem. We will update this announcement when the system is back in production. 


Thanks, TACC Team

Ranch Maintenance 13 June 2017

Posted by Jacob Getz on May 31, 2017 5:08:02 PM

 Ranch will not be available from 8 a.m. to 5:00 p.m. local time on Tuesday, June 13th, 2017. System maintenance will be performed during this time. 

-TACC Team

Updated on Jun 13, 2017 4:24:42 PM

Maintenance is complete and Ranch is back in production.

Original Posting

 Ranch will not be available from 8 a.m. to 5:00 p.m. local time on Tuesday, June 13th, 2017. System maintenance will be performed during this time. 

-TACC Team

Computational Science in the Cloud Institute at TACC – 7/24-28/2017

Posted by Jason Allison on May 25, 2017 2:56:56 PM

This 5-day workshop will provide participants with an end-to-end introduction to performing scientific simulations and analyses in a cloud-based environment. Participants will build their own virtual machines, setup Jupyter notebooks, learn to use APIs for provisioning and bootstrapping VMs, attach...

Updated on Jun 13, 2017 11:14:57 AM

We still have spaces available for the Computational Science in the Cloud Institute - July 24th through July 28th, 2017.  Please register ASAP to avoid missing out on this opportunity.

Original Posting

This 5-day workshop will provide participants with an end-to-end introduction to performing scientific simulations and analyses in a cloud-based environment. Participants will build their own virtual machines, setup Jupyter notebooks, learn to use APIs for provisioning and bootstrapping VMs, attach VMs to cloud and object storage, use containers for simplifying and standardizing VM deployment, and automate deployment of VMs with different tools. Participants will also learn how to use the Agave API for managing and collaborating in cloud environments.

Price for students, faculty, and academic researchers is $400.

Registration details and full agenda can be found at:
https://www.tacc.utexas.edu/education/institutes/computational-science-in-the-cloud.

Parallel Programming Foundations Institute at TACC – July 31-August 4, 2017

Posted by Jason Allison on Jun 2, 2017 3:23:57 PM

This 5-day workshop will provide participants with an introduction to developing parallel applications for modern HPC systems. Participants will learn about profiling and optimizing applications, concepts for domain and data decomposition, developing shared-memory parallel applications using OpenMP...

Updated on Jun 13, 2017 11:08:33 AM

We still have spaces available for Parallel Programming Foundations Institute - July 31st through August 4th, 2017.  Please register ASAP to avoid missing out on this opportunity.

Updated on Jun 2, 2017 3:37:23 PM

The original dates that were posted for this event were incorrect. The correct dates for the Parallel Programming Foundations Institute at TACC Institute are July 31st through August 4th, 2017.

Original Posting

This 5-day workshop will provide participants with an introduction to developing parallel applications for modern HPC systems. Participants will learn about profiling and optimizing applications, concepts for domain and data decomposition, developing shared-memory parallel applications using OpenMP and distributed-memory parallel applications using MPI, creating hybrid OpenMP/MPI applications for modern manycore architectures, and debugging parallel applications. Hands-on exercises done on the new Stampede2 supercomputer at TACC will help participants to better understand lecture concepts using concrete examples on modern hardware.

Price for students, faculty, and academic researchers is $400.

Registration details and full agenda can be found at:
https://www.tacc.utexas.edu/education/institutes/parallel-programming-foundations

TACC Vislab closed 21 June 2017

Posted by Jesse Snead on Jun 8, 2017 9:24:01 AM

The TACC Vislab will be closed Wednesday, 21 June, 2017. 

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 Wednesday, 21 June, 2017. 

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

Wrangler Maintenance 6 June 2017

Posted by Sergio Leal on May 23, 2017 4:09:15 PM

Wrangler will not be available from 8 a.m. to 5:00 p.m on Tuesday, June 6, 2017. System maintenance and general updates  will be performed during this time.

Thank you.

- TACC Team

Updated on Jun 6, 2017 3:56:08 PM

The Wrangler maintenance for 6/6 has completed ahead of the 1700 end time and all systems are good to go/available.


-TACC Team

Original Posting

Wrangler will not be available from 8 a.m. to 5:00 p.m on Tuesday, June 6, 2017. System maintenance and general updates  will be performed during this time.

Thank you.

- TACC Team

Webinar: Introduction to TACC Resources for UT System Institutions

Posted by Jason Allison on Jun 6, 2017 1:51:32 PM

Wednesday, June 14, 2017 Time: 11:30am-12:15pm CT The Texas Advanced Computing Center (TACC) at The University of Texas at Austin is expanding to deliver even more computing resources to all 14 UT System Academic and Health Institutions. This initiative, funded by UT System, aims to increase...

Wednesday, June 14, 2017
Time: 11:30am-12:15pm CT

The Texas Advanced Computing Center (TACC) at The University of Texas at Austin is expanding to deliver even more computing resources to all 14 UT System Academic and Health Institutions. This initiative, funded by UT System, aims to increase research support across all UT campuses. This webinar will give a brief presentation on how UT System investigators can leverage TACC resources to advance their research. We will be answering questions after the webinar.

Questions?: Email lifesci@consult.tacc.utexas.edu

Registration:https://portal.tacc.utexas.edu/training#/session/68

Stampede status 2 June 2017

Posted by David Littrell on Jun 2, 2017 4:58:54 PM

The $WORK filesystem has been intermittently unavailable on Stampede since today at 3:20pm CST. TACC staff are working to resolve this issue as quickly as possible.

Updated on Jun 2, 2017 6:00:23 PM

Issues with the $WORK filesystem have been resolved. 

Original Posting

The $WORK filesystem has been intermittently unavailable on Stampede since today at 3:20pm CST. TACC staff are working to resolve this issue as quickly as possible.

Wrangler Maintenance 31 May 2017

Posted by Jacob Getz on May 30, 2017 3:07:06 PM

Emergency maintenance to Wrangler will begin at 9 AM local time on 5/31. There should be no hard down time to Wrangler, however, performance may be slightly degraded. We currently estimate the maintenance window to extend into the afternoon.

-TACC Team

Updated on May 31, 2017 12:07:41 PM

After doing some emergency surgery on dssd08 in Wrangler we are now back to optimal/normal standards and running fine. Please let me/us know if you need anything else or have any questions.


-TACC Team

Original Posting

Emergency maintenance to Wrangler will begin at 9 AM local time on 5/31. There should be no hard down time to Wrangler, however, performance may be slightly degraded. We currently estimate the maintenance window to extend into the afternoon.

-TACC Team

Lonestar 5 maintenance 30 May 2017

Posted by Lucas Nopoulos on May 17, 2017 12:15:07 PM

Lonestar 5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 30 May 2017. System maintenance will be performed during this time.

-TACC team

Updated on May 30, 2017 5:19:52 PM

LoneStar5 has been returned to production and the queues are open. Thanks for your patience.


-TACC Team

Updated on May 30, 2017 2:55:44 PM

LoneStar5 has additional hardware issues with critical infrastructure that were discovered during the current maintenance. We are working to bring the system online however we are unlikely to resolve them during the current maintenance window. We will update user news when LoneStar5 is available again.

-TACC Team

Original Posting

Lonestar 5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 30 May 2017. System maintenance will be performed during this time.

-TACC team

Data and Information Analytics Institute at TACC – 6/19-23/2017

Posted by Jason Allison on May 25, 2017 2:48:53 PM

This 5-day workshop will introduce participants to best practices for large-scale data analysis using Python, R, and Hadoop/Spark, as well as an introduction to data management, working with databases, and machine learning. Participants will also receive introductions to current state of the...

This 5-day workshop will introduce participants to best practices for large-scale data analysis using Python, R, and Hadoop/Spark, as well as an introduction to data management, working with databases, and machine learning. Participants will also receive introductions to current state of the practice in geospatial, biomedical, and information visualization. Price for students, faculty, and academic researchers is $400.

Registration details and full agenda can be found at:
https://www.tacc.utexas.edu/education/institutes/data-and-information-analytics.

Visualizing and Interacting with Data Institute at TACC – 6/19-23/2017

Posted by Jason Allison on May 25, 2017 2:42:13 PM

This 5-day workshop will introduce participants to tools and best practices for remote and collaborative visualization of scientific data, developing visualizations using virtual reality and augmented reality interfaces, and building visualization systems like large tiled-displays. Participants...

This 5-day workshop will introduce participants to tools and best practices for remote and collaborative visualization of scientific data, developing visualizations using virtual reality and augmented reality interfaces, and building visualization systems like large tiled-displays. Participants will also receive introductions to current state of the practice in geospatial, biomedical, and information visualization.

Price for students, faculty, and academic researchers is $400.

Registration details and full agenda can be found at:
https://www.tacc.utexas.edu/education/institutes/visualizing-and-interacting-with-data.

Corral Status, 14 May 2017

Posted by David Littrell on May 14, 2017 7:49:01 AM

Corral is experiencing a hardware issue, and will be down for maintenance. No ETA to being back in production at this time. 

Updated on May 14, 2017 4:24:49 PM

Corral nodes have been rebooted and is back in production.  Please submit a ticket to our consulting portal if you experience any difficulties.  Thanks

Original Posting

Corral is experiencing a hardware issue, and will be down for maintenance. No ETA to being back in production at this time. 

Stampede 2 Update: Stampede 1’s Production KNL Sub-System Moving to Stampede 2

Posted by Jesse Snead on May 10, 2017 11:20:57 AM

The Stampede 2 deployment continues to go well: we expect to begin Phase 1 production service during the week of June 7 with a full complement of 4,200 Intel Knights Landing (KNL) compute nodes. Later this summer we’ll begin Phase 2 deployment of an additional 1,736 nodes featuring an upcoming...

The Stampede 2 deployment continues to go well: we expect to begin Phase 1 production service during the week of June 7 with a full complement of 4,200 Intel Knights Landing (KNL) compute nodes. Later this summer we’ll begin Phase 2 deployment of an additional 1,736 nodes featuring an upcoming Intel processor. We will continue to downsize Stampede 1 as this transition proceeds, but Stampede 1 will remain available until Fall 2017 when Stampede 2 enters full production.

The next major step focuses on the 508 KNL nodes (https://portal.tacc.utexas.edu/user-guides/stampede#stampede-knl-cluster) that are currently in production as a sub-system of the existing Stampede cluster. On or about Wednesday, 17 May 2017 we will stop accepting new jobs on the KNL sub-system. We will do our best to allow pending jobs to run to completion before we permanently retire the login-knl1 login node. This will have no effect on the availability of your files: the Sandy Bridge and KNL sides of Stampede 1 share the same home, work, and scratch file systems.

Please watch TACC User News (https://portal.tacc.utexas.edu/user-news) for additional information over the next few weeks. For now, note that TACC will have no KNLs in production service for a 3-4 week period beginning in mid-May. The temporary absence of 508 KNL nodes will likely put additional pressure on the Sandy Bridge queues. We especially appreciate your patience with queue wait times as we continue the process of installing Stampede 2.

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

Lonestar5 Maintenance 9 May 2017

Posted by Jacob Getz on May 2, 2017 8:58:32 AM

LoneStar5 will not be available from 8 a.m. to 1:00 p.m. (CT) on Tuesday, 9th May 2017. System maintenance will be performed during this time.

-TACC Team

Updated on May 9, 2017 12:54:45 PM

Lonestar5 is now out of maintenance and back in production.


-TACC Team

Original Posting

LoneStar5 will not be available from 8 a.m. to 1:00 p.m. (CT) on Tuesday, 9th May 2017. System maintenance will be performed during this time.

-TACC Team

Visualizing and Interacting with Data

Posted by Jason Allison on May 5, 2017 4:28:36 PM

June 19-23, 2017 Ready to get more from your data than simple charts? Spend a week with TACC's visualization experts learning how to generate rich, informative visualizations for your simulation results and data analyses. Get starting with VisIt and Paraview, learn the basics of developing...

June 19-23, 2017

Ready to get more from your data than simple charts? Spend a week with TACC's visualization experts learning how to generate rich, informative visualizations for your simulation results and data analyses. Get starting with VisIt and Paraview, learn the basics of developing interesting and worthwhile geographic and information visualizations, and try your hand at using some of the latest augmented- and virtual-reality tools for manipulating and exploring you visualizations.

For more information and to register please visit:
https://www.tacc.utexas.edu/education/institutes/visualizing-and-interacting-with-data

Data and Information Analytics

Posted by Jason Allison on May 5, 2017 4:18:13 PM

June 19-23, 2017 Want to gain more insight from your data? Is analyzing datasets too much for your favorite spreadsheet? Considering using machine learning to improve insights? Spend a week with TACC's data analysis experts learning about the latest tools and techniques for analyzing and processing...

June 19-23, 2017

Want to gain more insight from your data? Is analyzing datasets too much for your favorite spreadsheet? Considering using machine learning to improve insights? Spend a week with TACC's data analysis experts learning about the latest tools and techniques for analyzing and processing your Big Data problems. Try your hand at using R, Jupyter notebooks, Hadoop, and Spark with guided hands-on exercises, spend time one-on-one with our data analysis staff talking about your own projects and goals, and hear about the latest tools and research in Big Data.

For more information and to register please visit:
https://www.tacc.utexas.edu/education/institutes/data-and-information-analytics

Courses on Manycore Programming (KNL)

Posted by Jason Allison on May 4, 2017 4:33:29 PM

On June 2nd, 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 June 2nd, 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

Big Data Analysis Training Series

Posted by Jason Allison on Mar 28, 2017 2:58:55 PM

TACC will be offering the following courses as a series in Big Data Analysis. Introduction To Hadoop And Spark On Wrangler - April 20, 2017 Introduction To Scala/Spark - April 27, 2017 Data Analysis Using Hadoop/Spark - May 4, 2017 This training series will cover an introduction to the Big Data...

Updated on May 2, 2017 12:37:22 PM

We still have a few spaces available for in person registration for Data Analysis Using Hadoop/Spark on May 4, 2017 11am - 4pm CT.  Please register ASAP to avoid missing out on this opportunity.

Original Posting

TACC will be offering the following courses as a series in Big Data Analysis.

Introduction To Hadoop And Spark On Wrangler - April 20, 2017
Introduction To Scala/Spark - April 27, 2017
Data Analysis Using Hadoop/Spark - May 4, 2017

This training series will cover an introduction to the Big Data processing platforms, programming models as well as libraries and tools that are specifically designed for data-driven analysis. Each course will be three and a half hours long with approximately three hours of lecture and a half hour of hands-on practice.

Participants are strongly encouraged to sign up for all three courses, as each session will be built on topics from the previous sessions. That stated, participants can also choose only those courses that are best suited for their interest and knowledge level.

Please visit the following link for more information and to register:

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

Lonestar5 Status 2 May 2017

Posted by Jacob Getz on May 2, 2017 8:56:41 AM

Following  last week's updates we've got an outstanding issue which is preventing the Nvidia driver from working correctly. We will be working to resolve this on the affected nodes however in the interim the gpu queue will remain closed.


-TACC Team

Following  last week's updates we've got an outstanding issue which is preventing the Nvidia driver from working correctly. We will be working to resolve this on the affected nodes however in the interim the gpu queue will remain closed.


-TACC Team

Wrangler Maintenance 2 May 2017

Posted by Jacob Getz on May 1, 2017 10:05:20 AM

Wrangler will not be available from 8 a.m. to 12:00 p.m on Tuesday, May 2nd, 2017. System maintenance and general updates  will be performed during this time.

Thank you.

- TACC Team

Updated on May 1, 2017 1:28:11 PM

We will be moving this maintenance to 5/9 at 8am-12pm and cancelling the maintenance for Wrangler on 5/2 at 8am to 12pm.


-TACC Team

Original Posting

Wrangler will not be available from 8 a.m. to 12:00 p.m on Tuesday, May 2nd, 2017. System maintenance and general updates  will be performed during this time.

Thank you.

- TACC Team

Ranch status 9 May 2017

Posted by David Littrell on Apr 28, 2017 4:14:58 PM

TACC’s Ranch will undergo a partial maintenance on Tuesday, May 9th, 2017. One of the two login nodes will be unavailable for about 2 hours, starting at 8 AM (CST), but the other one will still be available after a quick reboot. Users may experience a slight delay connecting to the system for a...

TACC’s Ranch will undergo a partial maintenance on Tuesday, May 9th, 2017. One of the two login nodes will be unavailable for about 2 hours, starting at 8 AM (CST), but the other one will still be available after a quick reboot. Users may experience a slight delay connecting to the system for a short period of time.

Lonestar5 Maintenance 25 April 2017

Posted by Sergio Leal on Apr 11, 2017 11:40:25 AM

LoneStar5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 25 April 2017. System maintenance will be performed during this time.

Updated on Apr 27, 2017 4:52:21 PM

 Lonestar 5 is back in production and available for job submissions as of 11:46 AM. We appreciate your patience during this process which took longer than expected but was necessary to align us with many Cray patches addressing a number of concerns including security. The software changes, including kernel updates, were tested to ensure that TACC environment was preserved. Our testing indicates that it was, however, if any configs were changed please submit a ticket and let us know.

Thank you,

-TACC team

Updated on Apr 26, 2017 5:22:14 PM

The Lonestar5 maintenance window will need to be extended into tomorrow - April 27th, we anticipate the system to be available again around the middle of the business day.  Our sincere apologies for the significant delay, but due to the substantial number of software updates and hardware repairs, the system maintenance is taking much longer than originally planned.  Thank you for understanding and again apologies for the delay in getting Lonestar5 back into production.

-TACC Team

Updated on Apr 26, 2017 8:21:45 AM

Lonestar 5 maintenance has been extended to Wednesday, 4/26/2017. 

Original Posting

LoneStar5 will not be available from 8 a.m. to 5:00 p.m. (CT) on Tuesday, 25 April 2017. System maintenance will be performed during this time.

Ranch Maintenance 4/25/2017

Posted by Matthew Edeker on Apr 13, 2017 4:39:38 PM

TACC’s Ranch will not be available from 8 a.m. to 5:00 p.m. (CST) on Tuesday, April 25th, 2017. System maintenance will be performed during this time.


Thank you

 - TACC Team

Updated on Apr 25, 2017 9:51:57 PM

Ranch is back in production as of 9:45PM CST.


Thank you 


 - TACC Team

Original Posting

TACC’s Ranch will not be available from 8 a.m. to 5:00 p.m. (CST) on Tuesday, April 25th, 2017. System maintenance will be performed during this time.


Thank you

 - TACC Team

Scaling to Petascale Institute - June 26-30, 2017

Posted by Jason Allison on Apr 19, 2017 11:50:10 AM

Do you have a computational problem that would benefit from using a large scale computing system? Do you need to scale your simulation or data analysis to a petascale system? Registration is now open for the “Scaling to Petascale Institute” to be held June 26-30, 2017. Details are at...

Do you have a computational problem that would benefit from using a large scale computing system?

Do you need to scale your simulation or data analysis to a petascale system?

Registration is now open for the “Scaling to Petascale Institute” to be held June 26-30, 2017. Details are at https://bluewaters.ncsa.illinois.edu/petascale-summer-institute

This institute is for people developing, modifying and supporting research projects who seek to enhance their knowledge and skills to scale software to petascale and emerging extreme scale computing systems. Participants should have familiarity with Linux, programming in Fortran, C, C++, Python or similar language, and familiarity with MPI (message passing interface). There will be hands-on activities for many of the sessions.

Presentations will be made by faculty and professionals from Argonne Leadership Computing Facility (ALCF), the Blue Waters project at the National Center for Supercomputing Applications (NCSA), National Energy Research Scientific Computing Center (NERSC), Oak Ridge Leadership Computing Facility (OLCF), Stony Brook University, and the Texas Advanced Computing Center (TACC).

The agenda will address the following topics.

MPI - Introduction and Advanced topics
OpenMP
Scaling, code profiling, and debugging
GPU programming
OpenACC
Phi programming
Software libraries
Parallel I/O
HDF5
Globus
Software engineering

Wrangler Status 4/16/2017

Posted by Lucas Nopoulos on Apr 16, 2017 11:43:17 AM

Filesystem /gpfs/flash is unavailable on Wrangler due to issues with the Flash storage servers. We are working to resolve this.


--TACC Team 

Updated on Apr 16, 2017 12:58:08 PM

Filesystem /gpfs/flash has been restored on Wrangler. Please submit a ticket for any issues with jobs that were running using that filesystem


--TACC Team

Original Posting

Filesystem /gpfs/flash is unavailable on Wrangler due to issues with the Flash storage servers. We are working to resolve this.


--TACC Team 

Wrangler status April 14 2017

Posted by David Littrell on Apr 14, 2017 11:16:16 PM

Wrangler's gpfs filesystem is currently unavailable from the login node. If you need to access your files then run an idev session to a compute node and find them there. We will resolve this issue as quickly as possible.

Updated on Apr 15, 2017 10:11:22 AM

Wrangler's gpfs filesystem is restored on the login node.


Thanks,
TACC Team

Original Posting

Wrangler's gpfs filesystem is currently unavailable from the login node. If you need to access your files then run an idev session to a compute node and find them there. We will resolve this issue as quickly as possible.

Lonestar5 Status 12 April 2017

Posted by Sergio Leal on Apr 12, 2017 11:13:42 AM

Slurm is currently unavailable on Lonestar5. We are working on resolving the issue as quickly as possible.

Updated on Apr 12, 2017 7:45:40 PM

Lonestar 5 is back in production as of 7 PM local time.

Original Posting

Slurm is currently unavailable on Lonestar5. We are working on resolving the issue as quickly as possible.

Lonestar 5 status April 4, 2017

Posted by Lucas Nopoulos on Apr 4, 2017 10:23:45 AM

We are experiencing problems with the DVS servers causing LS5 to be unavailable. We are working on the problem and will resolve as soon as possible.


-TACC team


Updated on Apr 4, 2017 4:22:11 PM

The issue with LS5 /work filesystem has been resolved and the cluster is back in production.

Original Posting

We are experiencing problems with the DVS servers causing LS5 to be unavailable. We are working on the problem and will resolve as soon as possible.


-TACC team


OpenMP Courses - April 28th, 2017

Posted by Jason Allison on Mar 28, 2017 2:31:20 PM

On April 28th, 2017; TACC will be offering a morning introductory course and an afternoon performance optimization course on OpenMP. The morning course will introduce participants to the OpenMP threading model, and describe the basic constructs necessary to parallelize loops on manycore...

On April 28th, 2017; TACC will be offering a morning introductory course and an afternoon performance optimization course on OpenMP.

The morning course will introduce participants to the OpenMP threading model, and describe the basic constructs necessary to parallelize loops on manycore architectures. Topics covered will include understanding the fork/join threading model, using OpenMP pragmas, and loop parallelization.

The afternoon course will provide an introduction to OpenMP optimization techniques for manycore and vectorized architectures. Topics covered will include using OpenMP’s SIMD directives, configuring OpenMP thread affinity, and changing OpenMP thread scheduling behavior.

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 more 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

Stampede Status 4-4-2017

Posted by Jacob Getz on Mar 28, 2017 8:13:46 AM

Stampede will not be available from 8 am to 7:30 pm (CDT) on Tuesday, April 4th 2017. System maintenance will be performed during this time.


 - TACC Team

Stampede will not be available from 8 am to 7:30 pm (CDT) on Tuesday, April 4th 2017. System maintenance will be performed during this time.


 - TACC Team