Science Highlights

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New initiative on runtime compatibility for MPI implementations

Researchers at Argonne National Laboratory have established an initiative to tackle the problem of maintaining runtime compatibility between message passing interface (MPI) implementations on high-

December 3, 2013
Tracing the behavior of parallel applications on extreme-scale systems

Event-tracing tools have proved vital for understanding how parallel applications behave. But new challenges make the use of event tracing on extreme-scale machines problematic.

January 3, 2014
Hybrid approach to failure prediction for advanced computing systems

“Fault tolerance is no longer an option but a necessity,” states Franck Cappello, project manager of research on resilience at the extreme scale at Argonne National Laboratory.

January 8, 2014
Carbon dioxide measurements (top), ambient flow measurements (middle), and inferred number of occupants for APS office building Feb. 21-March 12, 2012. Note the difference between weekdays and weekends. Note also that the peak occupancy is around 400 and that the typical double peak observed before and after lunch times.
Calculating concentrations of people in buildings

Estimating the number of occupants in a building at any given time is key for determining the heating and cooling loads as well as ventilation rates necessary to maintain comfort and air quality co

January 24, 2014
Energy cost savings under various combinations (P=power range per rack; PR=pricing ratio)
The power of power-aware scheduling

Energy expense is becoming an increasingly dominant part of the operating costs of high-performance computing (HPC) systems.

January 28, 2014
The strength of CALCioM: reducing I/O cross-application contention

A major challenge in high-performance computing systems is reducing I/O interference between concurrent applications.

April 17, 2014
Using Poncho to deal with private clouds

Clouds have become a new way of providing computational, storage, and networking capabilities to users on demand.

April 28, 2014
RGG Training Offered

Argonne researchers will present training on RGG, the Reactor Geometry (and mesh) Generator, on June 12, 2014.

June 11, 2014
Rendering of the WECC Grid with novel graph algorithms methods that expose the hierarchical structure. Courtesy: Mahantesh Halappanavar (PNNL)
Anitescu discusses mathematics challenges of energy systems

Mihai Anitescu gave an invited presentation on June 12–13, 2014, at the initial meeting to launch the National Research Council study of the next-generation electric grid.

July 16, 2014
Images showing the two ways an icosahedral cluster of 12 spheres can rearrange when unlocked
Reconfigurable digital colloids

A team of researchers from Argonne, the University of Michigan, NYU, and the University of Colorado – Boulder has demonstrated how reconfigurable clusters of colloids can store data.

July 30, 2014