Mark Sawyer

Koen de Bosschere

Single processing units have now reached a point where further major improvements in their performance are restricted by their physical limitations. This is causing a slowing down in advances at the same time as new scientific challenges are demanding exascale speed. This has meant that parallel processing has become key to High Performance Computing (HPC). This book contains the proceedings of the 14th biennial ParCo conference, ParCo2011, held in Ghent, Belgium. The ParCo conferences have traditionally concentrated on three main themes: Algorithms, Architectures and Applications. Nowadays though, the focus has shifted from traditional multiprocessor topologies to heterogeneous and manycores, incorporating standard CPUs, GPUs (Graphics Processing Units) and FPGAs (Field Programmable Gate Arrays). These platforms are, at a higher abstraction level, integrated in clusters, grids and clouds. The papers presented here reflect this change of focus. New architectures, programming tools and techniques are also explored, and the need for exascale hardware and software was also discussed in the industrial session of the conference.This book will be of interest to all those interested in parallel computing today, and progress towards the exascale computing of tomorrow.

Applications, Tools and Techniques on the Road to Exascale Computing

Gaspar Rivera-Salgado

Edward Telles

Blacks and Latinos have transformed the American city—together these groups now constitute the majority in seven of the ten largest cities. Large-scale immigration from Latin America has been changing U.S. racial dynamics for decades, and Latino migration to new destinations is changing the face of the American south. Yet most of what social science has helped us to understand about these groups has been observed primarily in relation to whites—not each other. Just Neighbors? challenges the traditional black/white paradigm of American race relations by examining African Americans and Latinos as they relate to each other in the labor market, the public sphere, neighborhoods, and schools. The book shows the influence of race, class, and received stereotypes on black-Latino social interactions and offers insight on how finding common ground may benefit both groups. From the labor market and political coalitions to community organizing, street culture, and interpersonal encounters, Just Neighbors? analyzes a spectrum of Latino-African American social relations to understand when and how these groups cooperate or compete. Contributor Frank Bean and his co-authors show how the widely held belief that Mexican immigration weakens job prospects for native-born black workers is largely unfounded—especially as these groups are rarely in direct competition for jobs. Michael Jones-Correa finds that Latino integration beyond the traditional gateway cities promotes seemingly contradictory feelings: a sense of connectedness between the native minority and the newcomers but also perceptions of competition. Mark Sawyer explores the possibilities for social and political cooperation between the two groups in Los Angeles and finds that lingering stereotypes among both groups, as well as negative attitudes among blacks about immigration, remain powerful but potentially surmountable forces in group relations. Regina Freer and Claudia Sandoval examine how racial and ethnic identity impacts coalition building between Latino and black youth and find that racial pride and a sense of linked fate encourages openness to working across racial lines. Black and Latino populations have become a majority in the largest U.S. cities, yet their combined demographic dominance has not abated both groups’ social and economic disadvantage in comparison to whites. Just Neighbors? lays a much-needed foundation for studying social relations between minority groups. This trailblazing book shows that, neither natural allies nor natural adversaries, Latinos and African Americans have a profound potential for coalition-building and mutual cooperation. They may well be stronger together rather than apart.

Mark Sawyer

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