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Endri Bezati

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Publications associées (41)

Page 1 sur 3

High-level synthesis of dynamic dataflow programs on heterogeneous MPSoC platforms

Marco Mattavelli, Simone Casale Brunet, Endri Bezati

The growing complexity of digital signal processing applications make a compelling case the use of high-level design and synthesis methodologies for the implementation on programmable logic devices and embedded processors. Past research has shown that, for ...

2016

Design Space Exploration and Implementation of RVC-CAL Applications using the TURNUS framework

Marco Mattavelli, Endri Bezati, Simone Casale Brunet, Claudio Paolo Alberti, Ghislain Roquier

While research on the design of heterogeneous concurrent systems has a long and rich history, a unified design methodology and tool support has not emerged so far, and thus the creation of such systems remains a difficult, time-consuming and error-prone pr ...

2013

High-level synthesis of dataflow programs for heterogeneous platforms : design flow tools and design space exploration

Endri Bezati

The growing complexity of digital signal processing applications implemented in programmable logic and embedded processors make a compelling case the use of high-level methodologies for their design and implementation. Past research has shown that for comp ...

EPFL2015

Synthesis and Optimization of Pipelines for HW Implementations of Dataflow Programs

Marco Mattavelli, Endri Bezati, Ab Al Hadi Bin Ab Rahman, Anatoly Prihozhy

This paper introduces a new methodology for pipeline synthesis with applications to data flow high-level system design. The pipeline synthesis is applied to dataflow programs whose operators are translated into graphs and dependencies relations that are th ...

Ieee-Inst Electrical Electronics Engineers Inc2015

Clock-Gating of Streaming Applications for Energy Efficient Implementations on FPGAs

Marco Mattavelli, Simone Casale Brunet, Endri Bezati

This paper investigates the reduction of dynamic power for streaming applications yielded by asynchronous dataflow designs by using clock gating techniques. Streaming applications constitute a very broad class of computing algorithms in areas such as signa ...

2016

Pipeline Synthesis and Optimization from Branched Feedback Dataflow Programs

Marco Mattavelli, Endri Bezati, Simone Casale Brunet, Anatoly Prihozhy

Large dataflow designs are a result of behavioral specification of modern complex digital systems and/or a result of unfolding and transforming looped and branched programs. Since deep-submicron silicon technology provides large amounts of available resour ...

SPRINGER2020

Dataflow Programs Analysis and Optimization Using Model Predictive Control Techniques. Two Examples of Bounded Buffer Scheduling: Deadlock Avoidance and Deadlock Recovery Strategies

Marco Mattavelli, Endri Bezati, Simone Casale Brunet

The analysis of the trace graphs generated by dataflow program executions has been shown to be an effective tool for exploring and optimizing the design space of application programs on manycore/multicore platforms. In this work a new approach aiming at fi ...

Springer2015

Performance estimation of program partitions on multi-core platforms, 2016 26th International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS)

Marco Mattavelli, Simone Casale Brunet, Endri Bezati, Malgorzata Maria Michalska, Junaid Jameel Ahmad

The exploration of different design configurations of dynamic dataflow programs executed on many-core or multi-core platforms is, in general, a very difficult task. Determining a close-to-optimal partitioning, scheduling and buffer dimensioning configurati ...

2017

High-Precision Performance Estimation for the Design Space Exploration of Dynamic Dataflow Programs

Marco Mattavelli, Simone Casale Brunet, Endri Bezati, Malgorzata Maria Michalska

The implementation and optimization of dynamic dataflow programs on multi/many-core platforms require solving a very difficult problem: how to partition and schedule the processing elements and dimension their interconnecting buffers according to given opt ...

2017

Efficient Dynamic Optimisation Heuristics for Dataflow Pipelines

Marco Mattavelli, Endri Bezati, Simone Casale Brunet, Anatoly Prihozhy

Large dataflow designs appear as a result of functional specification of modern complex digital systems and/ or a result of unfolding and behavioral transformation of looped and branched programs. Since deep-submicron silicon technology provides large amou ...

IEEE2018

Design Space Exploration Problem Formulation for Dataflow Programs on Heterogeneous Architectures

Marco Mattavelli, Endri Bezati, Nicolas Zufferey, Malgorzata Maria Michalska

The implementations of signal processing systems on the emerging many-core or multi-core processing platforms require to solve a very difficult problem: how to partition and schedule the processing tasks according to given optimization functions such as da ...

2016

Shared-variable Synchronization Approaches for Dynamic Data Flow Programs

Marco Mattavelli, Endri Bezati, Simone Casale Brunet, Apostolos Modas, Junaid Jameel Ahmad

This paper presents shared-variable synchronization approaches for dataflow programming. The mechanisms do not require any substantial model of computation (MoC) modification, and is portable across both for hardware (HW) and software (SW) low-level code s ...

IEEE2018

Programming Models and Methods for Heterogeneous Parallel Embedded Systems

Marco Mattavelli, Simone Casale Brunet, Endri Bezati

The growing complexity of digital signal processing applications makes a compelling case for the adoption of higher-level programming models such as dataflow for the implementation of applications on programmable logic devices and many/multi-core embedded ...

2016

High-level system synthesis and optimization of dataflow programs for MPSoCs

Marco Mattavelli, Simone Casale Brunet, Endri Bezati

The growing complexity of digital signal processing applications make a compelling case the use of high-level design and synthesis methodologies for the implementation on reconfigurable and embedded devices. Past research has shown that raising the level o ...

2016

High level synthesis of Smith-Waterman dataflow implementations

Marco Mattavelli, Simone Casale Brunet, Endri Bezati

The paper presents the results of design explorations for the implementation of the Smith-Waterman (S-W) algorithm executing DNA and protein sequences alignment. Both design explorations studies and the corresponding FPGA implementations are obtained by wr ...

2017

Synthesis And Optimization Of High-Level Stream Programs

Marco Mattavelli, Simone Casale Brunet, Endri Bezati

In this paper we address the problem of translating high-level stream programs, such as those written in MPEG's RVC-CAL dataflow language, into implementations in programmable hardware. Our focus is on two aspects: sufficient language coverage to make synt ...

Ieee2013

An Heterogeneous Compiler Of Dataflow Programs For Zynq Platforms

Marco Mattavelli, Endri Bezati, Simone Casale Brunet, Romuald Mosqueron

In recent years, the number and variety of heterogeneous multiprocessor system-on-chip MPSoCs, such as for instance Zynq platforms, has sensibly increased. However, today all design flow solutions capable of programming the different components of such pla ...

IEEE2019

High-Level Synthesis of Dataflow Programs for Signal Processing Systems

Marco Mattavelli, Endri Bezati

The growing complexity of signal processing algorithms and platforms poses significant challenges to design methods and implementation tools. High-level dataflow programs, such as those in MPEG's RVC-CAL language, provide abstraction and the opportunity fo ...

2013

Execution Trace Graph Based Multi-criteria Partitioning of Stream Programs

Marco Mattavelli, Simone Casale Brunet, Endri Bezati, Malgorzata Maria Michalska

One of the problems proven to be NP-hard in the field of many-core architectures is the partitioning of stream programs. In order to maximize the execution parallelism and obtain the maximal data throughput for a streaming application it is essential to fi ...

2015

Buffer dimensioning for throughput improvement of dynamic dataflow signal processing applications on multi-core platforms

Marco Mattavelli, Simone Casale Brunet, Endri Bezati, Malgorzata Maria Michalska

Executing a dataflow program on a parallel platform requires assigning to each buffer a given size so that correct program executions take place without introducing any deadlock. Furthermore, in the case of dynamic dataflow programs, specific buffer size a ...

2017