Digital Commons Network^™

Runtime Pipeline I/O Scheduling System For Gpu-Based Heterogeneous Architectures, Julio Cesar Olaya

Open Access Theses & Dissertations

Heterogeneous architectures can improve the performance of applications with computationally intensive operations. Even when these architectures may reduce the execution time of applications, there are opportunities for additional performance improvement as the memory hierarchies of the central processor cores and the coprocessor cores are separate. Applications running on heterogeneous architectures where graphics processing units (GPUs) execute throughput-intense, data-parallel operations may run in a single address space provided by unified virtual addressing or expand the upper bounds of scalability and high performance computing by explicitly partitioning and transferring data across orthogonal host and device address spaces. For explicit handling, applications must …

Gpu Based Parallel Smoothing Of Seismic Tomography Models, Ivan Gris

Open Access Theses & Dissertations

Three-dimensional models of the velocity structure of the Earth's crust are an important and relevant factor for several types of analyses across disciplines. Crustal velocity models are also commonly used to analyze and search for different materials of interest or to determine and differentiate many aspects of life on Earth during different eras.

Seismic tomography techniques, both in two and three dimensions, perform image reconstruction of the crust of the Earth. Seismic tomography algorithms can calculate crustal velocity structure through inversion of traveltimes of seismic waves produced by natural events, such as earthquakes, or controlled source experiments, such as explosions. …