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Recent Submissions
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Task-based programming models for heterogeneous recurrent workloads
(Springer Nature, 2021)
Conference report
Open AccessThis paper proposes the extension of task-based programming models with recurrent workloads concepts. The proposal introduces new clauses in the OmpSs task directive to efficiently model recurrent workloads. The clauses ... -
SafeTI: a hardware traffic injector for MPSoC functional and timing validation
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessFunctional and timing validation of safety-related MPSoCs requires testing specific traffic patterns in the on-chip interconnects. Generally, testing needs to be performed by using software tests whose degree of control ... -
SafeDE: a flexible Diversity Enforcement hardware module for light-lockstepping
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessSafety-related systems, such as those in automotive, avionics and space, impose the existence of appropriate safety measures to meet the safety requirements of the system. In the case of the highest integrity level ... -
SafeSU: an extended statistics unit for multicore timing interference
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessStatistics units (SUs) in MPSoCs are becoming increasingly used for the (1) verification and (2) validation of multicore timing interference, as well as for (3) deploying safety measures in safety-related real-time systems. ... -
OpenMP taskloop dependences
(Springer, 2021)
Conference report
Open AccessExascale systems will contain multicore/manycore processors with high core count in each node. Therefore, using a model that relaxes the synchronization, such as data-flow, is crucial to adequately exploit the potential ... -
Enhancing OpenMP tasking model: performance and portability
(Springer, 2021)
Conference report
Open AccessOpenMP, as the de-facto standard programming model in symmetric multiprocessing for HPC, has seen its performance boosted continuously by the community, either through implementation enhancements or specification augmentations. ... -
Security, reliability and test aspects of the RISC-V ecosystem
(Institute of Electrical and Electronics Engineers (IEEE), 2021-05)
Conference lecture
Open AccessRISC-V has emerged as a viable solution on academia and industry. However, to use open source hardware for safety-critical applications, we need a deep understanding of the way in which well established mechanisms for ... -
Leveraging hardware QoS to control contention in the Xilinx Zynq UltraScale+ MPSoC
(Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021)
Conference report
Open AccessThe interference co-running tasks generate on each other’s timing behavior continues to be one of the main challenges to be addressed before Multi-Processor System-on-Chip (MPSoCs) are fully embraced in critical systems ... -
Coyote: an open source simulation tool to enable RISC-V in HPC
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessThe confluence of technology trends and economics has reincarnated computer architecture and specifically, software-hardware co-design. We are entering a new era of a completely open ecosystem, from applications to chips ... -
Understanding power consumption and reliability of high-bandwidth memory with voltage underscaling
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessModern computing devices employ High-Bandwidth Memory (HBM) to meet their memory bandwidth requirements. An HBM-enabled device consists of multiple DRAM layers stacked on top of one another next to a compute chip (e.g, ... -
Efficiently running SpMV on long vector architectures
(Association for Computing Machinery (ACM), 2021)
Conference report
Restricted access - publisher's policySparse Matrix-Vector multiplication (SpMV) is an essential kernel for parallel numerical applications. SpMV displays sparse and irregular data accesses, which complicate its vectorization. Such difficulties make SpMV to ... -
TALP: A Lightweight Tool to Unveil Parallel Efficiency of Large-scale Executions
(Association for Computing Machinery, 2021)
Conference lecture
Open AccessThis paper presents the design, implementation, and application of TALP, a lightweight, portable, extensible, and scalable tool for online parallel performance measurement. The efficiency metrics reported by TALP allow HPC ...
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