Frank Bellosa

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Richard Tabor Greene

PUT

Gregor Wolbring

University of Calgary

Jo Tondeur

Vrije Universiteit Brussel

David Seamon

Kansas State University

Sora Park

University of Canberra

Mariarosaria Taddeo

University of Oxford

J. Ignacio Criado

Universidad Autónoma de Madrid

Ahsan Yunus

Universitas Hasanuddin

Kenneth Loparo

Case Western Reserve University

Jose Pomilio

Universidade Estadual de Campinas

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Papers by Frank Bellosa

Energy Accounting Support in TinyOS

PIK - Praxis der Informationsverarbeitung und Kommunikation, 2009

ABSTRACT

Task activity vectors

Proceedings of the 3rd ACM SIGOPS/EuroSys European Conference on Computer Systems 2008 - Eurosys '08, 2008

Non-uniform utilization of functional units in combination with hardware mechanisms such as clock... more Non-uniform utilization of functional units in combination with hardware mechanisms such as clock gating leads to different power consumptions in different parts of a processor chip. This in turn leads to non-uniform temperature distributions and problematic lo- cal hotspots, depending on the characteristics of the currently run- ning task. The operating system&amp;#x27;s scheduler, responsible for de- ciding which task to run at what time, can influence temperature distribution. Our work investigates what the operating system can do to alleviate the problem of hotspots. We propose task activ- ity vectors describing which functional units a task uses to what degree. With the knowledge provided by these vectors, the sched- uler can schedule tasks using different units successively, distribute tasks using a particular unit excessively over the system&amp;#x27;s proces- sors, or mix tasks using different units on a SMT processor. We implemented several vector-based scheduling strategies for Linux. Our evaluations show that vector-based scheduling considerably re- duces hotspots.

Process cruise control

Proceedings of the international conference on Compilers, architecture, and synthesis for embedded systems - CASES '02, 2002

Scalability of the core frequency is a common feature of low-power processor architectures. Many ... more Scalability of the core frequency is a common feature of low-power processor architectures. Many heuristics for frequency scaling were proposed in the past to find the best trade-off between energy efficiency and computational performance. With complex applications exhibiting unpredictable behavior these heuristics cannot reliably adjust the operation point of the hardware because they do not know where the energy is

GPUswap

by Jens Kehne and Frank Bellosa

Proceedings of the 11th ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environments - VEE '15, 2015

ABSTRACT

Task activity vectors

ACM SIGOPS Operating Systems Review, 2008

Balancing power consumption in multiprocessor systems

Proceedings of the 2006 EuroSys conference on - EuroSys '06, 2006

... The domain hierarchy enables a scheduler to do hierarchical load balancing between the ... 4.... more

for Distributed Embedded Real-Time Systems - Work in Progress

Event-driven energy accounting for dynamic thermal management

... COLP&amp;#x27;03 Event-Driven Energy Accounting for ... Event-Driven Energy Accounting fo... more

Bibliography on Thermal Management

Using Operating System Instrumentation and Event Logging to Support User-level Multiprocessor Schedulers

A Component Model for Distributed Embedded Real-Time Systems

ABSTRACT

Beyond Address Spaces

ABSTRACT

An Approach to Component-Based Software Engineering for Distributed Embedded Real-Time Systems

ABSTRACT

Dynamic Thermal Management for Distributed Systems

... 1 TACS&#x27;04 Dynamic Thermal Management for Distributed Systems Andreas Weissel Frank... more

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Application Characterization for

ABSTRACT

Memory-aware Scheduling for Energy Efficiency on Multicore Processors

... Andreas Merkel, University of Karlsruhe. Frank Bellosa, University of Karlsruhe. Publisher, U... more

GPUswap: Enabling Oversubscription of GPU Memory through Transparent Swapping

by Jens Kehne and Frank Bellosa

ACM SIGPLAN Notices

ABSTRACT

Application Characterization for Wireless Network Power Management

Event-driven thermal management in SMP systems

Actions usually taken to prevent processors from overheating, such as decreasing the frequency or... more Actions usually taken to prevent processors from overheating, such as decreasing the frequency or stopping the execution flow, also degrade performance. Multiprocessor systems, however, offer the possibility of moving the task which caused a CPU to overheat away to some other, cooler CPU, so throttling becomes only a last resort taken if all of a system's processors are hot. Additionally, the different energy characteristics that different tasks are showing can be exploited and hot tasks as well as cool tasks can be distributed evenly among all CPUs.

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Transparent, power-aware migration in virtualized systems

This paper explores the use of hypervisor-based virtu- alization technology as a means to enable ... more This paper explores the use of hypervisor-based virtu- alization technology as a means to enable power manage- ment in server systems. Our approach focuses on the dy- namic mapping of physical processors and hosts to virtual machines. We have developed a multi-tiered infrastructure that enables dynamic migration of virtual machine execu- tion flow at two different levels: within and across computer nodes. Within a node, our infrastructure dynamically allo- cates and re-allocates virtual processors to their physical counterparts. Across nodes, our infrastructure employs live migration to relocate complete guest operating system in- stances to distinct physical hosts.

Energy Accounting Support in TinyOS

PIK - Praxis der Informationsverarbeitung und Kommunikation, 2009

ABSTRACT

Task activity vectors

Proceedings of the 3rd ACM SIGOPS/EuroSys European Conference on Computer Systems 2008 - Eurosys '08, 2008

Process cruise control

Proceedings of the international conference on Compilers, architecture, and synthesis for embedded systems - CASES '02, 2002

GPUswap

by Jens Kehne and Frank Bellosa

Proceedings of the 11th ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environments - VEE '15, 2015

ABSTRACT

Task activity vectors

ACM SIGOPS Operating Systems Review, 2008

Balancing power consumption in multiprocessor systems

Proceedings of the 2006 EuroSys conference on - EuroSys '06, 2006

... The domain hierarchy enables a scheduler to do hierarchical load balancing between the ... 4.... more

for Distributed Embedded Real-Time Systems - Work in Progress

Event-driven energy accounting for dynamic thermal management

... COLP&amp;#x27;03 Event-Driven Energy Accounting for ... Event-Driven Energy Accounting fo... more

Bibliography on Thermal Management

Using Operating System Instrumentation and Event Logging to Support User-level Multiprocessor Schedulers

A Component Model for Distributed Embedded Real-Time Systems

ABSTRACT

Beyond Address Spaces

ABSTRACT

An Approach to Component-Based Software Engineering for Distributed Embedded Real-Time Systems

ABSTRACT

Dynamic Thermal Management for Distributed Systems

... 1 TACS&#x27;04 Dynamic Thermal Management for Distributed Systems Andreas Weissel Frank... more

Download

Application Characterization for

ABSTRACT

Memory-aware Scheduling for Energy Efficiency on Multicore Processors

... Andreas Merkel, University of Karlsruhe. Frank Bellosa, University of Karlsruhe. Publisher, U... more

GPUswap: Enabling Oversubscription of GPU Memory through Transparent Swapping

by Jens Kehne and Frank Bellosa

ACM SIGPLAN Notices

ABSTRACT

Application Characterization for Wireless Network Power Management

Event-driven thermal management in SMP systems

Download

Transparent, power-aware migration in virtualized systems

Frank Bellosa

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