INTERNET COMPUTING

INTRODUCTION OF INTERNET COMPUTING :

Current trends in high-performance computing (HPC) are increasingly moving towards heterogeneous platforms [25], i.e. systems made of different computational units, like general-purpose CPUs, digital signal processors (DSPs), graphics processing units (GPUs), co-processors, and custom acceleration logic, enabling significant benefits in terms of both power and performance.

Cloud Computing: Basics and Beyond - Geekopedia.Me

WhileHPCcoverstodaydisparateapplications[27,7,6],historicallyithasnever extensively relied on FPGAs, mostly because of the reduced support for floatingpoint arithmetic. On the other hand, FPGAs and special-purpose hardwaregeneral,e.g.used for arithmetic operations requiring specialized circuit solutions in various areas [11, 10, 15, 14], provide a huge potential for improved power efficiency compared to software-programmable platforms.

Furthermore, while numerous approaches exist for raising somewhat the level of abstraction for hardware design [18, 16], developing an FPGA-based hardware accelerator is still challenging as seen from a software programmer. Consequently, high-performance platforms mostly rely on general-purpose compute units such as CPUs and/or GPUs.

Internet computing model of IOT (application architecture ...

However, pure general-purpose hardware is affected by inherently limited power-efficiency, i.e., low GFLOPS-per-Watt. Architectural customization can play here a key role, as it enables unprecedented levels of powerefficiency compared to CPUs/GPUs. This is the essential reason while very recent trends are putting more emphasis on the potential role of FPGAs.

Infact,recentFPGAfamilies,suchastheXilinxVirtex-7ortheAlteraStratix5, have innovative features, providing significantly reduced power, high speed, lower cost,reconfigurability [24].Due to these changes ,in the very recen tyears many innovative companies, including Convey, Maxeler, SRC, Nimbix [25], have introduced FPGA-based heterogeneous platforms used in a large range of HPC applications, e.g. multimedia, bioinformatics, security-related processing, etc. [27, 25], with speedups in the range of 10x to 100x.

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This paper explores the adoption of a deeply customizable scratchpad memory system for FPGA-oriented accelerator designs. At the heart of the proposed architectureisamulti-bankparallelaccessmemorysystemforGPU-likeprocessors.The proposed architecture enables a dynamic bank remapping hardware mechanism, allowing data to be redistributed across banks according to the specific access pattern of the kernel being executed, miminizing the number of conflicts and thereby improving the ultimate performance of the accelerated application.

In particular, relying on an advanced configurable crossbar, on a hardware-supported remapping mechanism, and extensive parameterization, the proposed architecture can enable highly parallel accesses matching the potentia lof currentHPC-oriented FPG Atechnologies.The paper describes the main insights behind by dynamic bank remapping as well as the key role that scratch pad memory might play for hardware-accelerated computing applications.

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