Eid Al-Adha Holiday, 20-27th September
Please note that there is NO COVERAGE over Eid, but KSL’s supercomputers will be operating. We encourage you to use the next few days in ensuring functionality of your codes and getting yourselves familiarized with the new Cray programming environment, and scheduler – SLURM. It will be useful if you can revisit the material that was distributed during the recently concluded Cray tutorial (https://www.hpc.kaust.edu.sa/training/2015/cray/material/). Please send us your requests by sending an email to email@example.com. We will respond to your tickets after the Eid break.
XSEDE HPC Workshop: OpenMP
The registration page for the XSEDE HPC Monthly Workshop Series - October 6 - OpenMP session is up.
The portal registration page can be found here:
If there is enough interest, KSL will investigate the possibility of streaming this course live in the Library computer room on 6th October.
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 4th October, starting at 9am.
Workshop topics include:
How to profile an application on Shaheen II, and how to debug and identify bottlenecks with Allinea Forge.
How to optimize and monitor application performance using Allinea Performance Reports. Workshop sessions offer attendees the opportunity to practice using the Allinea tools on Shaheen II with either their own applications or provided examples.
Please register at http://www.hpc.kaust.edu.sa/training/2015/allinea/registrations
When: 4th October 2015
Where: KAUST Auditorium between Building 4 and 5, Level 0
Contacts: Bilel Hadri (firstname.lastname@example.org) and Samar Aseeri (email@example.com).
Tip of the week: Writing Output Files
When you submit a job, by default both standard output and standard error are directed to the same file. You can save the output runs with names containing the job ID, as follows :
With SLURM (on Shaheen II Cray XC40)
#SBATCH --output=output_name-%j.out #SBATCH --error= error_name-%j.err
where the "%j" is automatically replaced by the job allocation number. For job arrays, it is recommended to use the following convention "name-%A_%a.out", where "%A" is replaced by the job ID and "%a" with the array index.
With Loadleveler ( Neser and Shaheen BG/P)
#!/bin/sh #@ job_name = hello-world #@ output = $(job_name).$(jobid).out #@ error = $(job_name).$(jobid).err
Follow us on Twitter
Follow all the latest news on HPC within the Supercomputing Lab and at KAUST, on Twitter @KAUST_HPC.
KSL Announcements archives can be viewed at http://www2.hpc.kaust.edu.sa/mailman/private/announce.
Questions, concerns, or problems related to Shaheen should be directed to firstname.lastname@example.org. From there your issue will be assigned to an appropriate primary contact who will track your issue to resolution. We may sometimes have to request items from KAUST IT or other service providers.
Getting an account
FAQs on the process and requirements for obtaining access to the Shaheen Systems are available here.
Getting an account on Shaheen is a three-step process and is detailed in this flowchart.
You should consult our Terms and Conditions of Usage.
- Your organisation or department must submit the Organisational Access Application, establishing a relationship between your home organisation and the KAUST Supercomputing Laboratory (KSL).
- You (or your Principal Investigator) must submit a project proposal describing the work to be done and the resources your project will require:
Shaheen I: Project Proposal
Shaheen II: Project Proposal
- You must submit an Individual Account Application, supplying identification information from which we can generate login credentials.
Use the secure submission form to submit credentials or other private information.
Accessing KSL Systems
After you have been given login credentials (i.e., a username and password) you will be able to access any Shaheen systems to which you have been granted access. Primary computational access to Shaheen and Neser is available via the ssh (secure shell) protocol.
PIs are required to submit periodic project reports during the course of their work on the KSL systems, there is a template available for this.
Data Centre Visits
To request a visit to the Data Centre, in the first instance, please complete this form.
Because the Shaheen Systems are a widely shared resource, user reservations are not encouraged. However, if a user feels that making a reservation for dedicated access to all or part of the Shaheen systems is essential for their work, then KSL will consider such requests on a case-by-case basis within the bounds of the following guidelines:
- A minimum of 14 days, preferably 30 days, notice is required for all reservations.
- The maximum duration allowed for a reservation will be 48 hours.
- A reservation may request dedicated access to between 1 and 16 racks of the Shaheen BG/P system. Reservations of less than 1 rack of BG/P will not be permitted.
- Users’ project accounts will be charged for all racks reserved for the entire reservation period, regardless of whether they are all used or not.
- There are no guarantees that a reservation request will be accepted.
Exceptions to this policy may be allowed based on the merits of a request, but very rarely.
- If a user has a complaint about a KSL decision relating to resource allocation, and the user remains unhappy after discussing their concerns with KSL Management, users can request arbitration from the Chairman of the KSL Resource Allocation Committee (KSL RAC) (currently Dr David Keyes). If the user remains unhappy with the decision of the Chairman of the KSL RAC, users can request arbitration from the Chairman of the KSL Management Committee (KSLMC).
- If a user has a complaint about KSL policies, or other matters not relating to resource allocation, and the user remains unhappy after discussing their concerns with KSL Management, users can request arbitration from the Chairman of the KSL Management Committee (KSLMC).
- Get a quick look at the machines.
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