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Margaret Mcfee

2021 Cluster Upgrades – Sept. 30th 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 capacity for the past…

Sex chromosome transformation and the origin of a male-specific X chromosome in the creeping vole

Matthew B. Couger, Scott W. Roy, Noelle Anderson, Landen Gozashti, Stacy Pirro, Lindsay S. Millward, Michelle Kim, Duncan Kilburn, Kelvin J. Liu, Todd M. Wilson, Clinton W. Epps, Laurie Dizney, Luis A. Ruedas, Polly Campbell Mystery solved? Chromosomal sex determination arises when an autosomal locus acquires a sex-determining function. In some taxa, this process occurs often. The XY system in…

Event Horizon Telescope Maps Emissions From Black Hole

The Event Horizon Telescope Collaboration has published results showing how the project was able to map and create imagery of polarized emissions from material rotating within the magnetic field near the event horizon of the supermassive black hole in galaxy M87.  Scientists from Harvard's Center for Astrophysics and Black Hole Initiative used the FASRC cluster for several parts of this projects'…

Security advisory regarding Python/Conda/pip/PyPI

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 name is mistyped…

Deep rotating convection generates the polar hexagon on Saturn

Rakesh K. Yadav Jeremy Bloxham PNAS June 23, 2020 117 "The hexagonal flow pattern on Saturn is a striking example of turbulent self-organization. However, the mechanism of its formation and its depth remain unclear. There are two hypotheses: in one, the hexagon is shallow, extending to depths ranging from tens to hundreds of kilometers; in the other, it extends to thousands…

2020 Year-End Recap and a Look Back at FASRC

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 indeterminate time. This…

Summer 2020 datacenter consolidation

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 allows FASRC, HMS,…

The Milky Way’s giant, wave-like collection of gas

Astronomers at Harvard University have discovered a monolithic, wave-shaped gaseous structure - the largest ever seen in our galaxy - made up of interconnected stellar nurseries. Dubbed the “Radcliffe Wave” in honor of the collaboration’s home base, the Radcliffe Institute for Advanced Study, the discovery transforms a 150-year-old vision of nearby stellar nurseries as an expanding ring into one featuring…

New scratchlfs02 online, see details

Dec 18, 2019   As most of you know, the scratchlfs system has exhibited performance issues and instability for some time. We're pleased to announce that a replacement system has been delivered, built, tested, benchmarked, and is ready for your use now at /n/scratchlfs02 .   Along with regular monthly maintenance on January 13th, 2020 ( https://www.rc.fas.harvard.edu/monthly-maintenance ), some changes…

Holidays and Tech: Your first computer

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 well as with some…