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News

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

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 around scratch space will…

Harvard/Yale meetup at MGHPCC

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 our similarities, differences,…

Convergent regulatory evolution & loss of flight in paleognathous birds

The Evolution of Flightless Birds: Study explores the genetics behind how they developed   "Since Darwin’s era, scientists have wondered how flightless birds like emus, ostriches, kiwis, cassowaries, and others are related, and for decades the assumption was that they must all share a common ancestor who abandoned the skies for a more grounded life. By the early 2000s, new…

FASRC Cluster Refresh 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 ETA for…

Deep learning of aftershock patterns following large earthquakes

Phoebe M. R. DeVries, Fernanda Viégas, Martin Wattenberg & Brendan J. Meade "Aftershocks are a response to changes in stress generated by large earthquakes and represent the most common observations of the triggering of earthquakes. The maximum magnitude of aftershocks and their temporal decay are well described by empirical laws (such as Bath’s law and Omori’s law), but explaining and forecasting…

Unraveling the Stellar Content of Young Clusters

"CfA astronomers Rafael Martinez-Galarz and Howard Smith and their two colleagues have developed a new statistical analysis technique to address the problem of confused SEDs in clustered environments. Using the highest spatial resolution images for each region, the team identifies the distinguishable stars (at least this many are in the cluster) and their emission at those wavelengths." More at the…

Revisiting the Six City Study

  "Last June, eight new Harvard-affiliated researchers revisited the study, using new technologies and innovations in statistical analysis and examining Medicare data—the largest and most public dataset available documenting the health of U.S. citizens—thus presumably averting renewed charges of secret science (an issue raised anew by current EPA administrator Scott Pruitt). Their findings breathe new life into the main conclusion…

Mapping Invisible Ocean Pollutants

Prof. Elsie Sunderland's lab seeks to build a picture of pollutants which threaten our oceans. “People struggle with this idea that we could impact planetary level processes. But we do. There’s irrefutable evidence on many, many scales that we’re changing the natural functioning of these ecosystems.”     Read more in Harvard Magazine's full story

Accelerating Viscoelastic Calculations

Read more about how Brendan Meade's group used machine learning and the Odyssey cluster to accelerate large-scale viscoelastic calculations using neural net concepts at Harvard Magazine. Earthquakes Around the World - Harvard Magazine For a deeper dive, you'll find their paper describing the work at https://arxiv.org/abs/1701.08884 ABSTRACT: "One of the most significant challenges involved in efforts to understand the effects of repeated…