A multiobjective metaheuristic approach for morphological filters on many-core architectures

Many-Task Computing on Many-Core Architectures

Many-Task Computing (MTC) is a common scenario for multiple parallel systems, such as cluster, grids, cloud and supercomputers, but it is not so popular in shared memory parallel processors. In this sense and given the spectacular growth in performance and in number of cores integrated in many-core architectures, the study of MTC on such architectures is becoming more and more relevant. In this...

Programming models for many-core architectures: a co-design approach

Processors incorporate more andmore cores. With the increasing core count, it becomes harder to implement convenient features like atomic operations, ordering of all memory operations, and hardware cache coherency. When these features are not supported by the hardware, applications become more complex. This makes programming these many-core architectures hard. This thesis defines programming mo...

A polyphase filter for many-core architectures

In this article we discuss our implementation of a polyphase filter for real-time data processing in radio astronomy. The polyphase filter is a standard tool in digital signal processing and as such a well established algorithm. We describe in detail our implementation of the polyphase filter algorithm and its behaviour on three generations of NVIDIA GPU cards (Fermi, Kepler, Maxwell), on the I...

Many Core Hardware Architectures

A Cross-Core Performance Model for Heterogeneous Many-Core Architectures

An accurate performance predictor to identify the most suitable core-architecture to execute each thread/workload in a heterogeneous many-core structure is proposed. The devised predictor is based on a linear regression model that considers several different parameters of the many-core processor architectures, including the cache size, issuewidth, re-order buffer size, load/store queues size, e...