Model-driven approach for supporting the mapping of parallel algorithms to parallel computing platforms

The trend from single processor to parallel computer architectures has increased the importance of parallel computing. To support parallel computing it is important to map parallel algorithms to a computing platform that consists of multiple parallel processing nodes. In general different alternative mappings can be defined that perform differently with respect to the quality requirements for power consumption, efficiency and memory usage. The mapping process can be carried out manually for platforms with a limited number of processing nodes. However, for exascale computing in which hundreds of thousands of processing nodes are applied, the mapping process soon becomes intractable. To assist the parallel computing engineer we provide a model-driven approach to analyze, model, and select feasible mappings. We describe the developed toolset that implements the corresponding approach together with the required metamodels and model transformations. We illustrate our approach for the well-known complete exchange algorithm in parallel computing. © 2013 Springer-Verlag

Modelo cognitivo-motivacional para la promoción de la persistencia en Educación Superior: relación entre la organización docente, la competencia del alumnado y el «grit»

The teaching process and the success of learning are closely linked to cognitive and motivational factors. The purpose of this study was to test a multilevel model in higher education students on the relationship between the teaching organization and the dimensions of grit and perceived competence. Participated 3033 students, who answered utility dimension inventories and organization, competition and grit. The results show that at the individual level, the organization by the teaching staff focused on the utility and organization is positively related to the student's scream, this relationship being mediated by the perceived competence. The organizational improvement of the teacher generates student achievements through the positive impact on their competence.«El proceso de enseñanza y el éxito del aprendizaje están estrechamente vinculados a factores cognitivos y motivacionales. Este estudio tuvo como propósito poner a prueba un modelo multinivel en estudiantes de Educación Superior sobre la relación de la organización docente y las dimensiones del grit, mediada por la competencia percibida. Participaron 3.033 estudiantes de cinco países, a los que se les midió la utilidad y organización del docente, la competencia y el grit. Los resultados muestran que, a nivel individual, la organización por parte del profesorado centrada en la utilidad se relacionó positivamente con el grit del estudiante cuando estaba mediada por la competencia percibida. Se sugiere que el profesor mejore su tarea organizativa docente, pues genera mayores logros en el estudiante a través del impacto positivo sobre su competencia