scholarly journals Heterogeneous coarse-grained processing elements: A template architecture for embedded processing acceleration

2009 ◽  
Author(s):  
G. Ansaloni ◽  
P. Bonzini ◽  
L. Pozzi
Keyword(s):  
Coarse Grained ◽  
Processing Elements ◽  
Embedded Processing

scholarly journals UltraSynth: Insights of a CGRA Integration into a Control Engineering Environment

2021 ◽  
Author(s):  
Dennis Wolf ◽  
Andreas Engel ◽  
Tajas Ruschke ◽  
Andreas Koch ◽  
Christian Hochberger
Keyword(s):  
Computing System ◽  
Coarse Grained ◽  
Instruction Level Parallelism ◽  
Control Engineering ◽  
Processing Elements ◽  
Actual Application ◽  
Reconfigurable Arrays ◽  
Engineering Environment ◽  
On Chip ◽  
Level Parallelism

AbstractCoarse Grained Reconfigurable Arrays (CGRAs) or Architectures are a concept for hardware accelerators based on the idea of distributing workload over Processing Elements. These processors exploit instruction level parallelism, while being energy efficient due to their simplistic internal structure. However, the incorporation into a complete computing system raises severe challenges at the hardware and software level. This article evaluates a CGRA integrated into a control engineering environment targeting a Xilinx Zynq System on Chip (SoC) in detail. Besides the actual application execution performance, the practicability of the configuration toolchain is validated. Challenges of the real-world integration are discussed and practical insights are highlighted.

POWER-EFFICIENT CONFIGURATION CACHE STRUCTURE FOR COARSE-GRAINED RECONFIGURABLE ARCHITECTURE

2013 ◽  
Vol 22 (03) ◽  
pp. 1350001 ◽  
Author(s):  
YOONJIN KIM
Keyword(s):  
High Performance ◽  
Average Power ◽  
Power Saving ◽  
Reducing Power ◽  
Coarse Grained ◽  
Context Management ◽  
Power Efficient ◽  
Processing Elements ◽  
Previous Design ◽  
Ip Cores

Coarse-grained reconfigurable architectures (CGRA) require many processing elements (PEs) and a configuration memory unit (configuration cache) for reconfiguration of its PE array. Although this structure is meant for high performance and flexibility, it consumes significant power. Specially, power consumption by configuration cache is explicit overhead compared to other types of IP cores. Reducing power in configuration cache is very crucial for CGRA to be more competitive and reliable processing core in embedded systems. In this paper, I propose a power-efficient configuration cache structure based on two design schemes — one is a reusable context pipelining (RCP) architecture to reduce power-overhead caused by reconfiguration and another is a dynamic context management strategy for power saving in configuration cache. This power-efficient approach works without degrading the performance and flexibility of CGRA. Experimental results show that the proposed approach saves 56.50%/86.84% of the average power in write/read-operation of configuration cache compared to the previous design.

scholarly journals Double Pumping Low Power Technique for Coarse - Grained Reconfigurable Architecture

2016 ◽  
Vol 4 (1) ◽  
pp. 10-15
Author(s):  
S. Munaf ◽  
Dr. A. Bharathi ◽  
Dr. A. N. Jayanthi
Keyword(s):  
High Performance ◽  
Random Access ◽  
Power Reduction ◽  
Coarse Grained ◽  
Reconfigurable Architectures ◽  
Memory Unit ◽  
Memory Architecture ◽  
Access Memory ◽  
Processing Elements ◽  
Data Bus

Coarse-grained reconfigurable architectures (CGRAs) require many processing elements (PEs) and a con- figuration memory unit (configuration cache) for reconfiguration of its PE array. Though this architecture is meant for high performance and flexibility. Power reduction is very crucial for CGRA to be more competitive and reliable processing core in embedded systems. We propose a DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory) architecture to reduce power-overhead caused by reconfiguration. The power reduction can be achieved by using the characteristics like double pumping the data bus and an I/O buffer between the memory and the data bus of DDR SDRAM. All modules have been designed at behavioral level with VHDL coding and to Simulate in Xilinx ISE navigator.

The Alteration of the Pore Spaces in Sandstones

1973 ◽  
Vol 31 ◽  
pp. 210-211
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Coarse Grained ◽  
Depositional Fabric ◽  
Soluble Components ◽  
Scanning Electron ◽  
Shape And Size

The pore spaces in sandstones are the result of the original depositional fabric and the degree of post-depositional alteration that the rock has experienced. The largest pore volumes are present in coarse-grained, well-sorted materials with high sphericity. The chief mechanisms which alter the shape and size of the pores are precipitation of cementing agents and the dissolution of soluble components. Each process may operate alone or in combination with the other, or there may be several generations of cementation and solution.The scanning electron microscope has ‘been used in this study to reveal the morphology of the pore spaces in a variety of moderate porosity, orthoquartzites.

On the Origin of the Microscystalline Structure in Rapidly Solidified IN-100 Powder

1977 ◽  
Vol 35 ◽  
pp. 260-261
Author(s):  
J. M. Walsh ◽  
K. P. Gumz ◽  
J. C. Whittles ◽  
B. H. Kear
Keyword(s):  
The Other ◽  
Coarse Grained ◽  
Microcrystalline Structure ◽  
Routine Examination ◽  
Atomization Process ◽  
Centrifugal Atomization ◽  
Splat Quenching ◽  
Powder Particles ◽  
Dendritic Microstructures ◽  
Rapidly Solidified

During a routine examination of the microstructure of rapidly solidified IN-100 powder, produced by a newly-developed centrifugal atomization process1, essentially two distinct types of microstructure were identified. When a high melt superheat is maintained during atomization, the powder particles are predominantly coarse-grained, equiaxed or columnar, with distinctly dendritic microstructures, Figs, la and 4a. On the other hand, when the melt superheat is reduced by increasing the heat flow to the disc of the rotary atomizer, the powder particles are predominantly microcrystalline in character, with typically one dendrite per grain, Figs, lb and 4b. In what follows, evidence is presented that strongly supports the view that the unusual microcrystalline structure has its origin in dendrite erosion occurring in a 'mushy zone' of dynamic solidification on the disc of the rotary atomizer.The critical observations were made on atomized material that had undergone 'splat-quenching' on previously solidified, chilled substrate particles.

Correlation between dislocation, grain boundary and interface of duplex SS in stress corrosion cracking(SCC)

1990 ◽  
Vol 48 (4) ◽  
pp. 928-929
Author(s):  
Wang Zheng-fang ◽  
Z.F. Wang
Keyword(s):  
Stainless Steel ◽  
Thermal Cycle ◽  
Secondary Phase ◽  
Corrosion Cracking ◽  
Coarse Grained ◽  
Test Environment ◽  
Fine Grained ◽  
Evaluation Test ◽  
Welding Thermal Cycle ◽  
Micro Analysis

The main purpose of this study highlights on the evaluation of chloride SCC resistance of the material,duplex stainless steel,OOCr18Ni5Mo3Si2 (18-5Mo) and its welded coarse grained zone(CGZ).18-5Mo is a dual phases (A+F) stainless steel with yield strength:512N/mm2 .The proportion of secondary Phase(A phase) accounts for 30-35% of the total with fine grained and homogeneously distributed A and F phases(Fig.1).After being welded by a specific welding thermal cycle to the material,i.e. Tmax=1350°C and t8/5=20s,microstructure may change from fine grained morphology to coarse grained morphology and from homogeneously distributed of A phase to a concentration of A phase(Fig.2).Meanwhile,the proportion of A phase reduced from 35% to 5-10°o.For this reason it is known as welded coarse grained zone(CGZ).In association with difference of microstructure between base metal and welded CGZ,so chloride SCC resistance also differ from each other.Test procedures:Constant load tensile test(CLTT) were performed for recording Esce-t curve by which corrosion cracking growth can be described, tf,fractured time,can also be recorded by the test which is taken as a electrochemical behavior and mechanical property for SCC resistance evaluation. Test environment:143°C boiling 42%MgCl2 solution is used.Besides, micro analysis were conducted with light microscopy(LM),SEM,TEM,and Auger energy spectrum(AES) so as to reveal the correlation between the data generated by the CLTT results and micro analysis.

Sign in / Sign up

Export Citation Format

Share Document