EvoCaches: Application-specific Adaptation of Cache Mappings

Background: With the growing demand of image processing and the use of Digital Signal Processors (DSP), the efficiency of the Multipliers and Accumulators has become a bottleneck to get through. We revised a few patents on an Application Specific Instruction Set Processor (ASIP), where the design considerations are proposed for application-specific computing in an efficient way to enhance the throughput. Objective: The study aims to develop and analyze a computationally efficient method to optimize the speed performance of MAC. Methods: The work presented here proposes the design of an Application Specific Instruction Set Processor, exploiting a Multiplier Accumulator integrated as the dedicated hardware. This MAC is optimized for high-speed performance and is the application-specific part of the processor; here it can be the DSP block of an image processor while a 16-bit Reduced Instruction Set Computer (RISC) processor core gives the flexibility to the design for any computing. The design was emulated on a Xilinx Field Programmable Gate Array (FPGA) and tested for various real-time computing. Results: The synthesis of the hardware logic on FPGA tools gave the operating frequencies of the legacy methods and the proposed method, the simulation of the logic verified the functionality. Conclusion: With the proposed method, a significant improvement of 16% increase in throughput has been observed for 256 steps iterations of multiplier and accumulators on an 8-bit sample data. Such an improvement can help in reducing the computation time in many digital signal processing applications where multiplication and addition are done iteratively.

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Designing a Reliable and Application Specific Controller Area Network Protocol for Intra-Communication of an Embedded System

Research Journal of Applied Sciences Engineering and Technology ◽

10.19026/rjaset.5.4971 ◽

2013 ◽

Vol 5 (2) ◽

pp. 445-451

Author(s):

Seyyed Amir Asghari ◽

Hassan Taheri ◽

Hossein Pedram

Keyword(s):

Embedded System ◽

Controller Area Network ◽

Network Protocol ◽

Area Network ◽

Application Specific

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Cyanobacterial Mats in Calcite-Precipitating Serpentinite-Hosted Alkaline Springs of the Voltri Massif, Italy

Microorganisms ◽

10.3390/microorganisms9010062 ◽

2020 ◽

Vol 9 (1) ◽

pp. 62

Author(s):

Aysha Kamran ◽

Kathrin Sauter ◽

Andreas Reimer ◽

Theresa Wacker ◽

Joachim Reitner ◽

...

Keyword(s):

Microbial Communities ◽

Microbial Mats ◽

Environmental Dna ◽

Cyanobacterial Mats ◽

Cyanobacterial Community ◽

Mineral Precipitation ◽

Community Based ◽

Specific Adaptation ◽

Carbonate Buildups ◽

Generation Sequencing

(1) Background: Microbial communities in terrestrial, calcifying high-alkaline springs are not well understood. In this study, we investigate the structure and composition of microbial mats in ultrabasic (pH 10–12) serpentinite springs of the Voltri Massif (Italy). (2) Methods: Along with analysis of chemical and mineralogical parameters, environmental DNA was extracted and subjected to analysis of microbial communities based upon next-generation sequencing. (3) Results: Mineral precipitation and microbialite formation occurred, along with mat formation. Analysis of the serpentinite spring microbial community, based on Illumina sequencing of 16S rRNA amplicons, point to the relevance of alkaliphilic cyanobacteria, colonizing carbonate buildups. Cyanobacterial groups accounted for up to 45% of all retrieved sequences; 3–4 taxa were dominant, belonging to the filamentous groups of Leptolyngbyaceae, Oscillatoriales, and Pseudanabaenaceae. The cyanobacterial community found at these sites is clearly distinct from creek water sediment, highlighting their specific adaptation to these environments.

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