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Two level bulk preload branch prediction

J. Bonanno, A. Collura, D. Lipetz, U. Mayer, B. Prasky, A. Saporito
2013 2013 IEEE 19th International Symposium on High Performance Computer Architecture (HPCA)  
Novel structures and algorithms for two level branch prediction are presented.  ...  Prediction information about multiple branches is bulk transferred from the second level into the first upon detecting a perceived miss in the first level.  ...  Two level bulk preload branch prediction This section describes bulk preload branch prediction developed for the IBM zEnterprise EC12.  ... 
doi:10.1109/hpca.2013.6522308 dblp:conf/hpca/BonannoCLMPS13 fatcat:nxx3skmsv5ek7ifbqoptyua2aq


Cansu Kaynak, Boris Grot, Babak Falsafi
2015 Proceedings of the 48th International Symposium on Microarchitecture - MICRO-48  
prefetching techniques aimed separately at L1-I and BTB, resulting in high metadata costs and/or only modest performance improvements due to the complex control-flow histories required to effectively fill the two  ...  While the L1-I prefetcher necessitates the history at block granularity, the BTB requires knowledge of individual branches inside each block.  ...  In the case of bulk preload, this latency is in excess of 15 cycles [3] .  ... 
doi:10.1145/2830772.2830785 dblp:conf/micro/KaynakGF15 fatcat:qwlwffly4bfbndda3i4rp5353u

Gecko adhesion: evolutionary nanotechnology

K. Autumn, N. Gravish
2008 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences  
In contrast, gecko toes bear angled arrays of branched, hair-like setae formed from stiff, hydrophobic keratin that act as a bed of angled springs with similar effective elastic modulus to that of PSAs  ...  Thus, frictional adhesion occurs at the spatular level as well as at the setal level, allowing adhesion to be controlled via the shear force.  ...  Each seta branches to form a nanoarray of hundreds of spatular structures (figure 1e) that make intimate contact with the surface.  ... 
doi:10.1098/rsta.2007.2173 pmid:18192170 fatcat:mtsyyrnmq5fchi37tkjwf7ivhe

K-joints of double-chord square hollow sections

Robert M. Korol, Magdi A. Chidiac
1980 Canadian journal of civil engineering (Print)  
Chord Preloading 20 2.2 Labelling System 21 2.3 Specimen Details 21 2.4 Material Properties 30 2.5 Testing Arrangements 34 2.6 Loading Procedure for Web Members 36 2.7 Hydraulic Jack 38 2.  ...  Test Results for Group 3 60 3.4 Effect of Eccentricity, Preloading and Slope Angle 65 3.5 Strain Distribution in the Vicinity of the Joint 68 CHAPTER EXPERIMENTAL RESULTS OF THE CHANNEL, BOLTED AND BACK-TO-BACK  ...  Since two branch members must be mated to the chord at a joint, a gap is normally produced.  ... 
doi:10.1139/l80-060 fatcat:w3xcr7a6xva2flq7bniobewac4

Effect of skin hydration on the dynamics of fingertip gripping contact

T. Andre, V. Levesque, V. Hayward, P. Lefevre, J.- L. Thonnard
2011 Journal of the Royal Society Interface  
The skin hydration level dramatically affected the dynamics of the contact encapsulated in the course of evolution from sticking to slipping.  ...  Significantly, these properties depended on the direction of the loading relative to the orientation of the ridges, suggesting that bulk behaviour may be difficult to predict with any level of accuracy  ...  Relationship between the stick ratio and the tangential force for two subjects with very different hydration levels (green or blue curves) and for two normal forces (a) 0.5 N and (b) 5 N.  ... 
doi:10.1098/rsif.2011.0086 pmid:21490002 pmcid:PMC3177614 fatcat:ly5exyqf5fcxzgns4irrgsdlbq

Mechano-Electric Feedbacks in a New Model of the Excitation-Contraction Coupling in Human Cardiomyocytes

Nathalie Balakina-Vikulova, Olga Solovyova, Alexander Panfilov, Leonid Katsnelson
2018 2018 Computing in Cardiology Conference (CinC)  
The two-fold decrease in this parameter resulted in a 30% decrease in the SR diastolic level and considerable decrease in the peak of the Ca 2+ transient and an increase in the time to peak (Fig. 3, [  ...  Therefore, just mathematical modeling is to be in high demand for predicting possible effects of MEF in human cardiomyocytes.  ... 
doi:10.22489/cinc.2018.065 dblp:conf/cinc/Balakina-Vikulova18 fatcat:rgmses5junbfznfbbotjgvdpz4

Comparison of the distribution of intramyocardial pressure across the canine left ventricular wall in the beating heart during diastole and in the arrested heart. Evidence of epicardial muscle tone during diastole

P D Stein, H N Sabbah, M Marzilli, E F Blick
1980 Circulation Research  
Methods Intramyocardial pressure was measured simultaneously at two levels in the free wall of the left ventricle in 18 open-chest anesthetized dogs with the use of two MIKRO-TIP catheter pressure transducers  ...  Incremental amounts of mercury were then added and the electrical output of the transducer in muscle was calibrated by the level of mercury above the level of the transducer (Fig. 2) .  ... 
doi:10.1161/01.res.47.2.258 pmid:6156774 fatcat:nmljn4gtqbajjmrclqorgejmau

Constitutive Properties of Silicone-Impregnated Reusable Ceramic Ablator in Compression: Poisson's Ratios

Mike H.B. Gray, Lev Kurbanyan, Frederick Milstein
2009 Journal of Spacecraft and Rockets  
The preload is also accounted for theoretically by taking a small preload stress and cor- responding theoretical preload strain as the origin of the theoretical global stress—strain curves described by  ...  the intrinsic Young’s modulus of the bulk material.  ... 
doi:10.2514/1.34350 fatcat:danmuxrr6zfn5cdzb32rftgk5y

Effective elastic modulus of isolated gecko setal arrays

K. Autumn
2006 Journal of Experimental Biology  
than bulk ␤-keratin.  ...  Conventional adhesives are materials that are used to join two surfaces.  ... 
doi:10.1242/jeb.02469 pmid:16943496 fatcat:yhcjcrfspzg2pi6mssl3ckseui

Boomerang: A Metadata-Free Architecture for Control Flow Delivery

Rakesh Kumar, Cheng-Chieh Huang, Boris Grot, Vijay Nagarajan
2017 2017 IEEE International Symposium on High Performance Computer Architecture (HPCA)  
We revisit a previously proposed approach of branch-predictor-directed prefetching, which leverages just the branch predictor and BTB to discover and prefetch the missing instruction cache blocks by exploring  ...  Our first contribution lies in explaining the reasons for the efficacy of branch-predictor-directed prefetching.  ...  One such approach, called Bulk Preload and implemented in an IBM z-series processor, relies on a 24Kentry second-level BTB and uses spatial correlation to preload a set of spatially-proximate entries into  ... 
doi:10.1109/hpca.2017.53 dblp:conf/hpca/0003HGN17 fatcat:dernqjobsvajbd7hjb7o234rh4

Design and Experimental Assessment of a Prestressed Lead Damper with Straight Shaft for Seismic Protection of Structures

Virginio Quaglini, Carlo Pettorruso, Eleonora Bruschi
2022 Geosciences  
The analyses were performed in two steps.  ...  The analyses were performed in two steps.  ... 
doi:10.3390/geosciences12050182 doaj:20519c32931b4c3eb8a49bc354a9ef86 fatcat:muumlx3scbbuxjq3n3fm45ix6e

Recent advances in gecko adhesion and friction mechanisms and development of gecko-inspired dry adhesive surfaces

Ming Zhou, Noshir Pesika, Hongbo Zeng, Yu Tian, Jacob Israelachvili
2013 Friction  
High adhesion and friction forces are predicted in the "toe-gripping" actuation, while small release forces are predicted in the "toe-releasing" actuation, these two being determined by the different "  ...  Two-or three-level fiber arrays produce higher adhesion strength than singlelevel ones [105, 118−121] . Jeong et al.  ... 
doi:10.1007/s40544-013-0011-5 fatcat:6pybkvciprf6plyjjksb7wdrti

The elaborate route for UDP-arabinose delivery into the Golgi of plants

Carsten Rautengarten, Devon Birdseye, Sivakumar Pattathil, Heather E. McFarlane, Susana Saez-Aguayo, Ariel Orellana, Staffan Persson, Michael G. Hahn, Henrik V. Scheller, Joshua L. Heazlewood, Berit Ebert
2017 Proceedings of the National Academy of Sciences of the United States of America  
UXE1 is localized within the Golgi and its catalytic domain is predicted to occur in the lumen (14) .  ...  Ara occurs in two different ring forms, the furanose and the pyranose form.  ... 
doi:10.1073/pnas.1701894114 pmid:28373556 pmcid:PMC5402404 fatcat:k5uctcfs5jgkraauye7f3erppa

Leaking Secrets through Modern Branch Predictor in the Speculative World [article]

Md Hafizul Islam Chowdhuryy, Fan Yao
2021 arXiv   pre-print
Finally, we discuss several secure branch prediction mechanisms that can mitigate transient execution attacks exploiting modern branch predictors.  ...  In this work, we demonstrate a new class of speculation-based attack that targets branch prediction unit (BPU).  ...  Differently, history-based prediction (i.e., two-level prediction) maintains the history of prior branch executions in a branch history buffer.  ... 
arXiv:2107.09833v1 fatcat:3fovrjwoxnglla6g53cwcutqcu

A New Material Model for Thermo-mechanical Analysis of Steels in Fire

Mian Zhou, Rui P.R. Cardoso, Hamid Bahai
2019 International Journal of Mechanical Sciences  
It works within the classical rate independent plasticity framework by exploiting the latitude of the two yield-surface model.  ...  Varying degrees of transient hardening were predicted by the proposed material model at different prestrain levels.  ...  The prediction of the proposed material model is an ideal von Mises circle being translated and expanded in the direction of the preloading.  ... 
doi:10.1016/j.ijmecsci.2019.05.007 fatcat:ayeg2qnpkrh6hcrm2la4k46cfe
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