Future supercomputers will require application developers to expose much more parallelism than current applications expose. In order to assist application developers in structuring their applications such that this is possible, new programming models and libraries are emerging, the many-task runtimes, to allow for the expression of orders of magnitude more parallelism than currently existing models. This dissertation describes the challenges that these emerging many-task runtimes will place on performance analysis, and proposes deep integration between runtimes and performance tools as a means of producing correct, insightful, and actionable performance results. I show how tool-runtime integration can be used to aid programmer understanding of performance characteristics and to provide online performance feedback to the runtime for Unified Parallel C (UPC), High Performance ParalleX (HPX), Apache Spark, the Open Community Runtime, and the OpenMP runtime.

The sociological implications of studying campus communities can lead to breakthroughs not only in teaching and improving learning environments, but provide unique and helpful programs to aid diversity, promote unity, and decrease social inequality on campus and in American society. This study applied Boyer's campus community model to assess the campus communities of a private liberal arts college and a public state research university in the Mid-Atlantic. Using a modified version of the College and University Community Inventory (CUCI) administered through a web-based survey software, data on student perceptions of the different aspects of campus community identified by Boyer were collected and analyzed using factor analysis and regression analysis. The factor analysis led the researcher to propose modifications to the survey instrument. The regression analysis found several significant characteristics of undergraduate students and their institutions that can influence their perceptions of the campus community. A discussion of the findings and the implications of the study are presented. The results reported in this study have lead to several recommendations to be developed to enhance and improve the study of the campus community and environment in higher education using the CUCI. / Master of Science