June 3, 2022
by Paul Edmon June 3, 2022
A common pitfall of High Performance Computing (HPC) scheduling is cluster fragmentation. This is not unique to HPC mind you, any system where you have a limited amount of space that you try to fill with quasi random sized blocks of stuff will end up fragmented at some level (see ...Read More
March 16, 2022
Some faces you may recognize in a video from one of our hardware partners discussing how modern HPC is revolutionizing drug and other health-related discoveries. Miss Annie Jump Cannon also makes an appearance.
September 20, 2021
We have some exciting news about new resources we want to share with you. In the summer of 2019 we invested in direct water cooling and were able to bring you the Cannon cluster with 32,000 of the fastest Intel Cascade Lake cores. This 8-rack block of compute has formed the core of our computational ...Read More
March 1, 2021
AUDIENCE: All Python/Conda users
IMPACT: Potential malicious packages installed or malware downloaded
Numerous packages containing malware/malicious links have been uploaded to the PyPI (Python Package Index) repository. Many of these have names which are slight misspellings of the names of other packages. The intention is to cause an installation of one of these packages if the package ...Read More
December 11, 2020
2020 - A year full of changes
2020 began somewhat normally, except that the world was coming to grips with a global pandemic. By February plans were being formed for a probable change to 100% remote work for FASRC staff. This became a reality in March and we bid our offices in '38' farewell for some ...Read More
December 2, 2020
by Paul Edmon December 2, 2020
Back in 2008, the Odyssey supercomputer was installed on the seventh floor of the Markely-Boston co-location data center at 1 Summer Street, Boston, Massachusetts. Until this point Harvard had not really been a player in the realm of supercomputing, unlike other major universities who had been doing so for decades. ...Read More
September 1, 2020
by Paul Edmon, September 1, 2020
One of the features of our scheduling software, Slurm, is that it has a max JobID of 67,043,328 (for the fascinating reason why see the Slurm docs). This means that when we hit that limit the JobID rolls over to 1 and starts counting again from there. We thought this ...Read More
July 27, 2020
On-going work July - ? in our Boston data center
Due to scheduling of resources around pandemic guidelines and rules, as well as scheduling with the data center and vendors, an end date is not yet known.
As part of cost-savings plans, FASRC and Harvard Medical School will be combining space in our Boston data center. This ...Read More
December 16, 2019
A bit of fun before the holiday break.
One thing that people in our profession can count on is 'your first computer'. There is one for each of us, and generally they hold a special place in our hearts and very often they're tied to holidays or birthdays. We did an impromptu survey of FASRC (as ...Read More
November 20, 2019
The November 2019 Top 500 List has just added Cannon, and we're very pleased to say we've ranked #144 overall and # 7 on the US academic list. We and the Harvard FAS are very proud to have Cannon in such a prominent position in the list. It demonstrates Harvard's commitment to pushing the envelope ...Read More
November 20, 2019
by Paul Edmon, November 20, 2019
Currently in the realm of computer science there is no hotter topic than Artificial Intelligence (AI) and Machine Learning (ML). However as this slide deck from Professor Arvind Narayanan at Princeton notes there is also a lot of snake oil going around too. Thus an understanding of AI is important ...Read More
November 13, 2019
by Maggie McFee - Nov. 13, 2019
While attending the PEARC conference, Maggie and Austin ran into some of our Yale Research Computing counterparts: Kaylea, Robert, and Ben. While there's an intense sports rivalry between the two schools, this wasn't the case with our RC departments. We really hit it off well and we talked about ...Read More
November 4, 2019
by Paul Edmon, November 4, 2019
As Solomon said "there is nothing new under the sun", and so it is with archival technology. Hollywood it seems has stumbled on the trick of etching glass to store data for long term (i.e. centuries). Fun thing is this is a return to previous methods of storage.
A general rule ...Read More
October 16, 2019
by Paul Edmon, October 16, 2019
First, in order to not bury the lede, if you are a chemist using or have used the "Willoughby-Hoye" python scripts please be advised that there is a bug which may impact your results. It is advised that you re-verify your results with the updated patched version. See these articles ...Read More
March 19, 2019
As of the November 2019 rankings, Cannon has ranked #144 on the Top500 list!
For current cluster details, please see: https://www.rc.fas.harvard.edu/about/cluster-architecture/
For current partition configurations and changes, please see the Running Jobs page
The lease on the Odyssey compute cluster comes to an end this year, and a hardware refresh of the cluster will occur in September.
Current ...Read More
June 15, 2018
As of May 22nd 2018, the new Odyssey 3 cluster is fully operational. All login nodes and compute nodes* on the Odyssey cluster are running CentOS 7, have CentOS 7 modules, and the ability to use Singularity containers enabling you to build specialized software for yourself.
Please see our updated/additional documentation, including:
CentOS 7 Transition FAQ
Singularity on ...Read More