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Fundamental performance constraints in horizontal fusion of in-order cores

Pierre Salverda, Craig Zilles
2008 High-Performance Computer Architecture  
In short, if the goal is to match the performance of modern dynamically-scheduled machines, fusion of in-order cores is not a very compelling approach; either a fundamentally new method for fusing cores  ...  We demonstrate that using in-order cores for this purpose, even under idealized assumptions about fusion-related overheads, would introduce fundamental obstacles to achieving good performance -obstacles  ...  Acknowledgments This research was supported in part by NSF CCF-0429561, NSF CAREER award CCR-03047260, and a gift from the Intel corporation.  ... 
doi:10.1109/hpca.2008.4658644 dblp:conf/hpca/SalverdaZ08 fatcat:3xgjyigr65eenavs3ohrt4soly


Abhishek Deb, Josep Maria Codina, Antonio González
2011 Proceedings of the 8th ACM International Conference on Computing Frontiers - CF '11  
In this paper we propose SoftHV, a high-performance HW/SW co-designed in-order processor that performs horizontal and vertical fusion of instructions.  ...  Overall, we show that such a co-designed processor based on an in-order core provides a compelling alternative to out-of-order processors for the low-end domain where high-performance at a low-complexity  ...  However, some of the fundamental ones are out-of-order execution and higher execution bandwidth in order to execute instructions in parallel.  ... 
doi:10.1145/2016604.2016606 dblp:conf/cf/DebCG11 fatcat:bdbwx32qjjcyvizvsxlq3dcj4a

GPU-based real-time trinocular stereo vision

Yuanbin Yao, R. J. Linton, Taskin Padir, Juha Röning, David Casasent
2013 Intelligent Robots and Computer Vision XXX: Algorithms and Techniques  
Algorithms were developed with many different basic image processing methods and a winner-take-all method is applied to perform fusion of disparities in different directions.  ...  Traditionally most stereovision applications are binocular which uses information from a horizontal 2-camera array to perform stereo matching and compute the depth image.  ...  Also it needs to design parallelism well in order to maximize performance [7] .  ... 
doi:10.1117/12.2008583 fatcat:mgyt3qlfsbbp3puqwvbhogjnti

Understanding fundamental design choices in single-ISA heterogeneous multicore architectures

Kenzo Van Craeynest, Lieven Eeckhout
2013 ACM Transactions on Architecture and Code Optimization (TACO)  
metrics; and how fundamental design choices, such as core type, cache size, and off-chip bandwidth, affect performance.  ...  The analytical model has linear-time complexity in the number of core types and programs of interest, and offers a unique opportunity for exploring the large space of both homogeneous and heterogeneous  ...  Chip Area Cost Model #BCEs scalar in-order core 1 2-wide in-order core 2 4-wide in-order core 3 2-wide out-of-order core 4 4-wide out-of-order core 8 512KB LLC slice 1 assign one Base Core Equivalent (  ... 
doi:10.1145/2400682.2400691 fatcat:5qkv7eaaljhsxp4lvsovf6liia

Multi-baseline Disparity Fusion for Immersive Videoconferencing

Oliver Schreer, Nicole Atzpadin, Ingo Feldmann, Peter Kauff
2009 Proceedings of the 2nd International ICST Conference on Immersive Telecommunications  
One of many challenges in this project is to calculate depth information for many different views in order to synthesise novel views to provide eye contact.  ...  In this paper, we present a multibaseline disparity fusion scheme for improved real-time disparity map estimation.  ...  resolution In the next sub-section, the fusion approach for these different types of camera configurations is presented in order to exploit the advantages of each.  ... 
doi:10.4108/immerscom.2009.6585 dblp:conf/immerscom/SchreerAFK09 fatcat:rhkajyny6rhnnfamdlo54tamli

Age Estimates of Globular Clusters in the Milky Way: Constraints on Cosmology

L. M. Krauss
2003 Science  
This means that the three fundamental observables in cosmology-the age of the Universe, the distance-redshift relation, and the geometry of the Universe-now independently support the case for a dark energydominated  ...  Recent observations of stellar globular clusters in the Milky Way Galaxy, combined with revised ranges of parameters in stellar evolution codes and new estimates of the earliest epoch of globular cluster  ...  Eventually the helium core becomes so hot and dense that the star ignites helium fusion in its core (horizontal branch). A subclass is unstable to radial pulsations (RR Lyrae).  ... 
doi:10.1126/science.1075631 pmid:12511641 fatcat:3bu5uotdxndppf6zixvdfb3vue

ARIES-ST breeding blanket design and analysis

M.S. Tillack, X.R. Wang, J. Pulsifer, S. Malang, D.K. Sze
2000 Fusion engineering and design  
The main features of the blanket design are summarized here together with analysis of the thermal hydraulic and thermomechanical performance.  ...  ARIES-ST is a 1000 MW fusion power plant conceptual design based on a low aspect ratio 'spherical torus' (ST) plasma.  ...  Summary The dual coolant blanket concept has been modified and improved in order to extend its performance characteristics.  ... 
doi:10.1016/s0920-3796(00)00366-5 fatcat:j7g2o4fthrexjf6g6dyknghunm

Prospects and issues for commercial fusion power systems

Robert W. Conn, Farrokh Najmabadi, Mark S. Tillack
1998 Fusion engineering and design  
We review the present status of this and other power plant designs, identify the key fusion R and D issues in a variety of technological areas, and point to the need for a coordinated, and international  ...  As one alternative source of energy for the future, fusion power will be required to demonstrate that it can be a safe, clean and economically attractive option in an increasingly diverse and competitive  ...  constraints.  ... 
doi:10.1016/s0920-3796(97)00152-x fatcat:nk6hdjnt3zhs7di2be2ntwoaza

Symmetry fractionalization and twist defects

Nicolas Tarantino, Netanel H Lindner, Lukasz Fidkowski
2016 New Journal of Physics  
Topological order in two dimensions can be described in terms of deconfined quasiparticle excitations - anyons - and their braiding statistics.  ...  the associativity of fusion rules of the extrinsic 'twist' defects of the symmetry.  ...  Kitaev for many insightful discussions, and especially for pointing out the mathematical work of [19] and [21] .  ... 
doi:10.1088/1367-2630/18/3/035006 fatcat:7fbcxkbcbfbe7eaa6ksxseliju

Scalable Kernel Fusion for Memory-Bound GPU Applications

Mohamed Wahib, Naoya Maruyama
2014 SC14: International Conference for High Performance Computing, Networking, Storage and Analysis  
Results show that using the proposed scalable method for kernel fusion improved the performance of two real-world applications containing tens of kernels by 1.35x and 1.2x.  ...  The paper also proposes a codeless performance upper-bound projection model to achieve effective fusions.  ...  Kernel Y in Figure 3 Listing 7 is an example of this type of fusion. 2) Complex Fusion: Complex fusion may occur when the kernels have order-of-execution constraints.  ... 
doi:10.1109/sc.2014.21 dblp:conf/sc/WahibM14 fatcat:ct23w7scs5awbjpabb4b3ksbcy

Optimal Estimation and Fundamental Limits for Target Localization using IMU/TOA Fusion Method

Cheng Xu, Jie He, Yuanyuan Li, Xiaotong Zhang, Xinghang Zhou, Shihong Duan
2019 IEEE Access  
The simulation results show that the proposed fusion method in this paper has obvious spatial-temporal performance advantages in theory.  ...  Cramér-Rao lower bound (CRLB) and posterior CRLB for IMU/TOA fusion are derived to characterize both the spatial and temporal localization performance of the proposed fusion method.  ...  In order to solve this issue, existing literatures generally adopt multi-source fusion approaches.  ... 
doi:10.1109/access.2019.2902127 fatcat:z6mkg7pcxrdldnz462pltomcea

Exploring the assortativity-clustering space of a network's degree sequence

Petter Holme, Jing Zhao
2007 Physical Review E  
Among other things, we find that high clustering might be a force in the evolution of protein interaction networks.  ...  By mapping out this ensemble in the space of some low-level network structure -- in our case those measured by the assortativity and clustering coefficients -- one can for example study how close to the  ...  The ensemble of all networks fulfilling the fundamental constraints on the system is usually called null model (or reference model).  ... 
doi:10.1103/physreve.75.046111 pmid:17500965 fatcat:fcu2w7c2s5fhzlpzszvfuo2spu

Noise-Aware Unsupervised Deep Lidar-Stereo Fusion [article]

Xuelian Cheng, Yiran Zhong, Yuchao Dai, Pan Ji, Hongdong Li
2019 arXiv   pre-print
In this paper, we present LidarStereoNet, the first unsupervised Lidar-stereo fusion network, which can be trained in an end-to-end manner without the need of ground truth depth maps.  ...  Lidar-stereo fusion studies.  ...  Notably, all ablation studies on losses and fusion strategies are evaluated on Core Architecture only in order to reduce the randomness introduced by our feedback loop module.  ... 
arXiv:1904.03868v1 fatcat:iavi3y5kgvfupethq6oo474ce4

A New Image Super-Resolution Restoration Algorithm

Sayed A., A. S., Ayman H., A. K.
2017 International Journal of Computer Applications  
The reconstructed image is evaluated by several quantitative measures: the peak signal-noise ratio(PSNR), root main square error(RMSE), entropy, and Objective Fusion Measure.  ...  The development of the algorithm is based on the improvement of the classical projection onto convex set (POCS) algorithm and the stationary wavelet transform (SWT) to restore a super-resolution image  ...  Accurate registration of images is the most fundamental component to high performance image processing techniques such as multi-frame image fusion, change detection, and super-resolution [9] .  ... 
doi:10.5120/ijca2017915355 fatcat:xws2on3i3nftjnkf7nyr62s7eq

Smooth Stitching Method for the Texture Seams of Remote Sensing Images Based on Gradient Structure Information

Danjun Deng
2021 Processes  
Experimental results show that the design method has good performance in stitching accuracy and efficiency in the smooth stitching of the texture seams of remote sensing images.  ...  The main direction of texture seams is determined by calculating the gradient structure information of texture seams in horizontal and vertical directions.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/pr9101689 fatcat:x372ppmnzzapfgffnvr3g65x5m
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