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Maintenance Session Tuesday 2nd August
The next maintenance session will be on Tuesday 2nd August from 09:00 until 17:00. There will be no access to the system during this period.
RCAC Meeting
The project submission deadline for the next RCAC meeting is 30th June 2016. Please note that the RCAC meetings are held once per month. Projects received on or before this deadline will be included in the agenda for the next RCAC meeting, scheduled to be held in July 2016. The detailed procedure and the forms are available here:
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Power Capping
As you are aware the system was previously running with a power cap of 2200KW with occasional sessions without power capping but with a reduced number of nodes.
With the approval of the RCAC is has been decided that we are going to trial an extended run with power capping off, this should mean that code may run faster and will also allow us to prepare a number of projects code to run at scale without capping.
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Maintenance Session Tuesday 31st May
The next maintenance session will be on Tuesday 31st May from 09:00 until 17:00. There will be no access to the system during this period.
RCAC Meeting
The project submission deadline for the next RCAC meeting is 31st May 2016. Please note that the RCAC meetings are held once per month. Projects received on or before this deadline will be included in the agenda for the next RCAC meeting, scheduled to be held in June 2016. The detailed procedure and the forms are available in the following webpage.
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Maintenance Session Tuesday 31st May
The next maintenance session will be on Tuesday 31st May from 09:00 until 17:00. There will be no access to the system during this period.
Running watch on squeue
Some users are running a watch on squeue to monitor their jobs.
Please refrain from doing this as it places an increased load on the job scheduler.
If you need notice when a job is starting you can ask Slurm to do this within your job submission file, as follows:
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Shaheen II power uncapped
Shaheen II power will be uncapped this weekend (Thursday 5:00 PM until Sunday 8:00 AM). Around 4,000 nodes will be available. The remaining 2,000 nodes will be drained and not available. This is to allow performance tuning and code execution without power restrictions on compute nodes. This session is open to all Shaheen II users.
RCAC Meeting
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XSEDE HPC Workshop: OpenMP
The registration page for the XSEDE HPC Monthly Workshop Series - 10th May - OpenMP session is up. The portal registration page can be found here:
https://portal.xsede.org/course-calendar/-/training-user/class/488/sessi...
If there is enough interest, KSL will investigate the possibility of streaming this evening course live at the Library computer room starting at 6pm.
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RCAC Meeting:
The project submission deadline for the next RCAC meeting is 30th April 2016. Please note that the RCAC meetings are held once per month. Projects received on or before this deadline will be included in the agenda for the next RCAC meeting, scheduled to be held on 26th May 2016.
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RCAC Meeting:
The project submission deadline for the next RCAC meeting is 30th April 2016. Please note that the RCAC meetings are held once per month. Projects received on or before this deadline will be included in the agenda for the next RCAC meeting, scheduled to be held on 26th May 2016.
Tip of the week: Performance analysis in 10 steps
1) Connect to Shaheen II with -X:ssh -X username@shaheen.hpc.kaust.edu.sa
2) Load/unload the following modules:
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KSL Workshop Series: Introduction to performance tools on the Cray XC40 supercomputer Shaheen II
Sunday, April 17
9:30 – 11:00 a.m.
Sea view room, Level 3, University Library
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Maintenance Session Sunday 27th to Tuesday 29th March
The next maintenance session is scheduled to take place from 08:00 on Sunday 27th March until 17:00 on Tuesday 29th March. Please note that this is an extended outage to enable us to test some large scale code that was deferred to avoid disruption to other users and also to install the latest patches and compiler environment.
RCAC Meeting
The project submission deadline for the next RCAC meeting is 31st March 2016. Please note that the RCAC meetings are held once per month.
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XSEDE HPC Workshop: OpenACC
The registration page for the XSEDE HPC Monthly Workshop Series - March 8th - OpenACC session is up.
The portal registration page can be found here:
https://portal.xsede.org/course-calendar/-/training-user/class/461/sessi...
If there is enough interest, KSL will investigate the possibility of streaming this course live in the Library computer room on the 8th of March.
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The Third Annual Workshop on "Accelerating Scientific Applications Using GPUs"
The KAUST Supercomputing Laboratory is co-organizing with NVIDIA, a leader in accelerated computing, a one day workshop on accelerating scientific applications using GPUs on Tuesday February 23rd, 2016 in the auditorium between building 2 and 3. To register to the event, please click here
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Annual Power Maintenance
Due to the annual power maintenance in the data centre, all of the systems will be unavailable from 08:00 on Thursday 11th February until approximately 10:00 on Monday 15th February.
Please note that the system will not be available to run jobs from 15:00 today as it has been reserved to run large scale jobs that were deferred to avoid disruption to other users.
Shaheen Storage
A reminder of the polices in place for Shaheen storage:
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XSEDE HPC Workshop: MPI
The registration page for the XSEDE HPC Monthly Workshop Series - February 9-10 - MPI session is up.
The portal registration page can be found here: https://portal.xsede.org/course-calendar/-/training-user/class/456/sessi...
If there is enough interest, KSL will investigate the possibility of streaming this course live in the Library computer room next Tuesday and Wednesday.
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RCAC Meeting
The project submission deadline for the next RCAC meeting is 31st January 2016. Please note that the RCAC meetings are held once per month.
Annual Power Maintenance
Due to the annual power maintenance in the data centre, all of the systems will be unavailable from 08:00 on Thursday 11th February until approximately 10:00 on Monday 15th February.
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Annual Power Maintenance
Due to the annual power maintenance in the data centre, all of the systems will be unavailable from 08:00 on Thursday 11th February until approximately 10:00 on Monday 15th February.
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XSEDE HPC Workshop: OpenMP
The registration page for the XSEDE HPC Monthly Workshop Series - January 20th - OpenMP session is up.
The portal registration page can be found here:
https://portal.xsede.org/course-calendar/-/training-user/class/454/sessi...
If there is enough interest, KSL will investigate the possibility of streaming this course live in the Library computer room on the 20th of January.
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XSEDE HPC Workshop: OpenMP
The registration page for the XSEDE HPC Monthly Workshop Series - January 20th - OpenMP session is up.
The portal registration page can be found here:
https://portal.xsede.org/course-calendar/-/training-user/class/454/sessi...
If there is enough interest, KSL will investigate the possibility of streaming this course live in the Library computer room on the 20th of January.
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Firewall Upgrade
Please note the following alert from KAUST IT services:
Firewall upgrade has been scheduled on Thursday 31st December 2015 from 17:00 to 21:00 AST.
All services hosted will face intermittent downtime during the upgrade. These services include KSL website and may affect your login to Shaheen II and Neser.
RCAC Meeting
The deadline for project submission for the next RCAC meeting is Thursday 31st December 2015. Please note that RCAC meeting are held every month.
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RCAC Meeting
The next scheduled RCAC (Research Computing Allocation Committee) meeting is Thursday 17th December.
Retirement of Neser and Associated Scratch Storage
As previously announced, Neser will be decommissioned on January and the last date that jobs will be scheduled to run is 31st December 2015.
We will continue to have the Shaheen I/Neser ‘home' and ‘project' filesystems available until at least 31st July 2016. However, please note that the ‘scratch' filesystem will be taken off-line and deleted on the 1st February 2016.
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Shaheen II Filesystem
We are pleased to confirm that the problem affecting the filesystem availability has been resolved and the system is fully available for use.
Maintenance Session 1st December 2015
The next maintenance session on Shaheen II will be on Tuesday 1st December from 12:00 until 17:00.
XSEDE HPC Workshop: OpenACC
The registration page for the XSEDE HPC Monthly Workshop Series - December 3 - OpenACC session is up.
The portal registration page can be found here:
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SLURM workq_high and workq_low
Please note that workq_high and workq_low will be removed from the system on the 1st December. If you have either of these partitions specified in your job control file, they should be removed. As workq is the default partition, this does not need to be specified.
Neser Last Day of Service
Please note this system will be decommissioned in January, the last day that any job will be able to run is 31st December 2015.
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We are pleased to confirm that Shaheen was brought back online at 08:00 this morning and is fully available for use.
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Dear Users
We have encountered a major issue affecting the availability of the Lustre filesystem.
Cray have recommended that we perform and immediate shutdown of the system to prevent data loss.
We are working on identifying the reason for the failure and will update you when we have more information.
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Dear Shaheen II Users,
Over the last couple of weeks you have experienced considerable disruption in using Shaheen II due to a combination of scheduled maintenance sessions and unforeseen failures in hardware and software. We sincerely apologize for the inconvenience these might have caused. Our team works hard to minimize these downtimes, keeping as our most important goal to ensure you are highly productive on our systems.
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Good Morning
We are pleased to confirm that the issues we encountered with system following last week’s maintenance session have now been resolved.
The system is now fully available to run jobs.
We would also like to remind you that the next maintenance session on Shaheen II will be from 08:00 on the 8th November for 3 days (until 08:00 on the 11th November).
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Extended maintenance sessions in October.
Maintenance work on Shaheen II is taking longer than originally envisioned. Service will not be returned by tomorrow but we are hopeful that Shaheen II will be operational by the end of the week. There will be occasional disruption to the CDLs, but at least one CDL will be available for users to login to during this period.
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Extended maintenance sessions in October.
We would like to remind our users of the extended outage on Shaheen II in October for necessary maintenance:
25th October for 3 days
There will be no access to the system during these periods.
Tip of the week: Queues on Shaheen II Cray XC40
Two different queue are available on Shaheen II:
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Eid Al-Adha Holiday, 20-27th September
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KSL Workshop Towards High Efficiency Computing with Allinea
KAUST Supercomputing Laboratory presents the Allinea Software workshop on HPC profiling and debugging: "Towards High Efficiency Computing with Allinea" on October 4th, starting at 9am.
Workshop topics include:
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Maintenance Session Tuesday 18th August
The next maintenance session will be on Tuesday 18th August from 12:00 until 17:00. There will be no access to the system during this period. This will affect Shaheen I, Neser and Shaheen II. Important security updates, custom patches and several bug fixes will be applied to the XC40, which will require the whole system to be rebooted.
Tip of the Week: What command did I type before ?
History command
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Shaheen II Cray XC40 Workshop Announcement
Date: 7th June to 11th June 2015
Where: KAUST: Auditorium Al-Haytham (down the steps between Bldg2 and Bldg3)
KAUST Supercomputing Lab and Cray are offering a series of three courses:
*Sunday 7th June to Tuesday 9th, 2015 Introduction to the new Shaheen II Cray XC40
*Wednesday 10th June 2015 Efficient Parallel I/O
*Thursday 11th June 2015 Port and optimize your own code on the Cray XC40
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Shaheen-I job size limitation
We only have a limited number of spare parts for Shaheen, and yesterday we exhausted our stock of node cards.
We have had another node card failure this morning, which means that we are now in the situation where we are ‘cannibalising’ the system to supply parts.
With immediate effect we have taken two node cards offline in rack 00.
This means that we can no longer run 16 rack jobs and the maximum size job that can be run on Shaheen is now 12288 nodes (12 racks).
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Power Outage Thursday 9th April to Monday 13th April
In preparation for the introduction of the new Cray supercomputer, there will be a site-wide power outage to the Data Centre currently housing Shaheen1 and Neser. All services, including Shaheen and Neser, will be shut down from 16:00 on Thursday 9th April until approximately 11:00 on Monday 13th April.
We apologise for the late notice and for any inconvenience that this may cause.
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Shaheen and Neser unavailable 18th-20th March 2015
In preparation for the introduction of the new Cray supercomputer, there will be a site-wide power outage to the Data Centre currently housing Shaheen1 and Neser. All services, including Shaheen1 and Neser, will be shut down from 17:00 on Wednesday 18th March until approximately 11:00 on 20th March.
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Annual Power Maintenance
Due to annual power maintenance in Building 1, all systems will be shutdown from 16:00 on Thursday 26th February until approximately 10:00 on Sunday 1st March.
Tip of the Week: Using TotalView Debugger for Parallel jobs on Neser
In this example, we will be using the Intel compiler along with OpenMPI/1.6.4/intel( intel-compilers/11.1 and openmpi/1.6.4/intel should be loaded). In addition, it is required that you connect to Neser using the ssh –X option, to get the Totalview GUI ( Graphical User Interface).
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Disruption to Shaheen earlier today
Earlier today, a fault occurred on both Shaheen front end nodes, rendering them completely unresponsive. To remedy the situation, both front end nodes were rebooted. We apologise for any disruption this may have caused. The root cause of the problem is still under investigation.
Maintenance Session Tuesday 17th February
The next maintenance session will be on Tuesday 17th February from 12:00 until 17:00. There will be no access to the system during this period.
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KSL Presents the XSEDE HPC Monthly Workshop on OpenACC This Friday
Registration deadline Tomorrow. For registration and further information click here.
Invitation to attend the second KAUST-NVIDIA workshop on "Accelerating Scientific Applications using GPUs" on February 17th, 2015
The Supercomputing Laboratory is pleased to announce the second KAUST-NVIDIA one-day workshop about accelerating scientific applications using GPUs on February 17th.
The registration is free but required using this link.
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