Departament d'Arquitectura de Computadors
Recent Submissions
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Dissecting HTTP/2 and QUIC : measurement, evaluation and optimization
(Universitat Politècnica de Catalunya, 2019-06-13)
Doctoral thesis
Open Access
Covenantee: Université Catholique de LouvainThe Internet is evolving from the perspective of both usage and connectivity. The meteoric rise of smartphones has not only facilitated connectivity for the masses, it has also increased their appetite for more responsive ... -
Scalable processing of aggregate functions for data streams in resource-constrained environments
(Universitat Politècnica de Catalunya, 2019-09-05)
Doctoral thesis
Open AccessThe fast evolution of data analytics platforms has resulted in an increasing demand for real-time data stream processing. From Internet of Things applications to the monitoring of telemetry generated in large datacenters, ... -
Ultra low-power, high-performance accelerator for speech recognition
(Universitat Politècnica de Catalunya, 2019-07-25)
Doctoral thesis
Open AccessAutomatic Speech Recognition (ASR) is undoubtedly one of the most important and interesting applications in the cutting-edge era of Deep-learning deployment, especially in the mobile segment. Fast and accurate ASR comes ... -
Evaluation of STT-MRAM main memory for HPC and real-time systems
(Universitat Politècnica de Catalunya, 2019-07-29)
Doctoral thesis
Open AccessIt is questionable whether DRAM will continue to scale and will meet the needs of next-generation systems. Therefore, significant effort is invested in research and development of novel memory technologies. One of the ... -
Exploiting task-based programming models for resilience
(Universitat Politècnica de Catalunya, 2019-06-21)
Doctoral thesis
Open AccessHardware errors become more common as silicon technologies shrink and become more vulnerable, especially in memory cells, which are the most exposed to errors. Permanent and intermittent faults are caused by manufacturing ... -
Synthetic biology guidelines for diffusion based molecular communication
(Universitat Politècnica de Catalunya, 2019-06-18)
Doctoral thesis
Open AccessNanotechnology is widely seen as having huge potential to bring benefits to many areas of research and application. Nowadays, research studies are focusing on realizing nano-machines on the order of nanometers in size. A ... -
Direct lookup and hash-based metadata placement : impact on architecture, performance and scalability of local and distributed file systems
(Universitat Politècnica de Catalunya, 2019-04-29)
Doctoral thesis
Open AccessNew challenges to file systems’ metadata performance are imposed by the continuously growing average number of files existing in file systems. The traditional component based lookup approach can become a performance ... -
Parallel architectures and runtime systems co-design for task-based programming models
(Universitat Politècnica de Catalunya, 2019-04-29)
Doctoral thesis
Open AccessThe increasing parallelism levels in modern computing systems has extolled the need for a holistic vision when designing multiprocessor architectures taking in account the needs of the programming models and applications. ... -
Towards resource-aware computing for task-based runtimes and parallel architectures
(Universitat Politècnica de Catalunya, 2019-04-24)
Doctoral thesis
Open AccessCurrent large scale systems show increasing power demands, to the point that it has become a huge strain on facilities and budgets. The increasing restrictions in terms of power consumption of High Performance Computing ... -
Memory bandwidth and latency in HPC: system requirements and performance impact
(Universitat Politècnica de Catalunya, 2019-05-07)
Doctoral thesis
Open AccessA major contributor to the deployment and operational costs of a large-scale high-performance computing (HPC) clusters is the memory system. In terms of system performance it is one of the most critical aspects of the ... -
Improving resource efficiency in virtualized datacenters
(Universitat Politècnica de Catalunya, 2019-04-29)
Doctoral thesis
Open AccessIn recent years there has been an extraordinary growth of the Internet of Things (IoT) and its protocols. The increasing diffusion of electronic devices with identification, computing and communication capabilities is ... -
A framework for multidimensional indexes on distributed and highly-available data stores
(Universitat Politècnica de Catalunya, 2019-03-22)
Doctoral thesis
Open AccessSpatial Big Data is considered an essential trend in future scientific and business applications. Indeed, research instruments, medical devices, and social networks generate hundreds of peta bytes of spatial data per year. ...
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