Data Movement Reduction for DNN Accelerators: Enabling Dynamic Quantization Through an eFPGA

Computational requirements for deep neural networks (DNNs) have been on a rising trend for years. Moreover, network dataflows and topologies are becoming more sophisticated to address more challenging applications. DNN accelerators cannot adopt quickly to the constantly changing DNNs. In this paper, we describe our approach to make a static accelerator more versatile by adding an embedded FPGA (eFPGA). The eFPGA is tightly coupled to the on-chip network, which allows us to pass data through the eFPGA before and after it is processed by the DNN accelerator. Hence, the proposed solution is able to quickly address changing requirements. To show the benefits of this approach, we propose an eFPGA application that enables dynamic quantization of data. We can fit four number converters on an $1.5mm^2$ eFPGA, which can process 400M data elements per second. We will practically validate our work in the near future, with a SoC tapeout in the ongoing EPI project

Towards reconfigurable accelerators in HPC: Designing a multipurpose eFPGA tile for heterogeneous SoCs

The goal of modern high performance computing platforms is to combine low power consumption and high throughput. Within the European Processor Initiative (EPI), such an SoC platform to meet the novel exascale requirements is built and investigated. As part of this project, we introduce an embedded Field Programmable Gate Array (eFPGA), adding flexibility to accelerate various workloads. In this article, we show our approach to design the eFPGA tile that supports the EPI SoC. While eFPGAs are inherently reconfigurable, their initial design has to be determined for tape-out. The design space of the eFPGA is explored and evaluated with different configurations of two HPC workloads, covering control and dataflow heavy applications. As a result, we present a well-balanced eFPGA design that can host several use cases and potential future ones by allocating 1% of the total EPI SoC area. Finally, our simulation results of the architectures on the eFPGA show great performance improvements over their software counterparts.European Processor Initiative (EPI) project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 826647, from Spanish Government (PID2019- 107255GB-C21/AEI /10.13039/501100011033), and from Generalitat de Catalunya (contracts 2017-SGR-1414 and 2017-SGR-1328). M. Moreto is partially supported by the Spanish Ministry of Economy, Industry and Competitiveness under Ramon y Cajal fellowship No. RYC-2016-21104.Peer ReviewedPostprint (author's final draft

Kaposi’s Sarcoma Presenting As Lymphadenopathy In An Immunocompetent Patient

Introduction: Kaposi’s sarcoma (KS) is an angioproliferative disorder first described in 1872 by Moritz Kaposi. Four main clinical presentations of KS have been described: classic, endemic, iatrogenic and epidemic. KS involvement of the lymph nodes is extremely uncommon in the classical variant form, especially if it precedes the skin manifestations. We describe the case of an elderly HIV-negative patient presenting with lymphadenopathy who was found to have KS. Case Report: A 67-year-old patient was admitted for exploration of polyadenopathies in the context of a general decline in health. Physical examination revealed an erythematosus left lower limb rash associated with angiomatous nodules and multiple lymphadenopathies. The diagnosis of erysipelas in the left leg was retained and the patient was treated with good evolution of the rash but persistence of the angiomatous nodules and the polyadenopathies. Skin and lymph node biopsies led to a diagnosis of KS. The patient is proposed for polychemotherapy. Conclusion: KS must be suspected in lymphadenopathies despite the absence of typical cutaneous signs of the disease and in immunocompetent patients

Cutaneous vasculitis associated with Helicobacter pylori

Helicobacter pylori is a widely prevalent microbe, Epidemiological and experimental data pointed recently to a strong relation of H. pylori infection on the development of many extragastric diseases, including several allergic and autoimmune diseases. We report a 65-year-old man who presented with cutaneous vasculitis accompanied by gastric H. pylori (Hp) infection. The gastro intestinal manifestations and purpuric lesions were dramatically resolved after Hp eradication therapy

Bowen’s disease in a patient with Primary Sjögren’s syndrome: A case report and a review of the literature

A rare case of Bowen’s disease (BD) in a patient with Primary Sjögren’s syndrome is reported. A 42-year-old woman suffering from Primary Sjögren’s syndrome retained on the basis of clinical and serological findings, was admitted 3 years later for genital bleeding. The diagnosis of Bowen’s disease was established by clinical and histolopathological examination. Classical association of lymphoma and Sjögren’s syndrome is described, but to the best of our knowledge, it is the second report of BD associated to Sjögren’s syndrome in published literature. A common physio-pathological etiology cannot be excluded