Contributions to Simulation Speed Up

Contributions to Simulation Speed Up

Eugen Lamers explains the principle of simulation speed-up in general and shortly demonstrates the technique RESTART for the simulation of rare events.

Author: Eugen Lamers

Publisher: Springer Science & Business Media

ISBN: 383489513X

Category: Technology & Engineering

Page: 148

View: 952

Eugen Lamers explains the principle of simulation speed-up in general and shortly demonstrates the technique RESTART for the simulation of rare events. He introduces the Short-Term Dynamic Simulation concept, developed for the planning of mobile radio networks.
Categories: Technology & Engineering

High Performance Computing Contributions to DoD Mission Success

High Performance Computing Contributions to DoD Mission Success

Additionally , the code contains several advanced features ( including interactive
tuning , optimization , and statistical design ) that make use of repeated
simulations , which also benefit from simulation speed up . Results : The first
effort to ...

Author:

Publisher:

ISBN: UOM:39015041785851

Category: Computer networks

Page: 149

View: 437

Categories: Computer networks

Contributions to the Theory and Simulation of Chaotic Dynamics of Circuits and Systems

Contributions to the Theory and Simulation of Chaotic Dynamics of Circuits and Systems

One such algorithm , called the shooting method , employs Newton - Raphson to
converge to the steady - state solution . This method is incorporated in BIF as an
alternative to transient iterations and can speed up simulations by a factor of 2 or
 ...

Author: Thomas Scarborough Parker

Publisher:

ISBN: UCAL:C2928583

Category:

Page: 372

View: 111

Categories:

International Chemical Engineering

International Chemical Engineering

Almost all the contributions have come from academia . Commercial applications
of dynamic simulation of recitifcation columns are compiled in Table 5 . The
dynamic process simulator SPEEDUP of Prosys ( 69 ) should be mentioned .

Author:

Publisher:

ISBN: UOM:39015030227857

Category: Chemical engineering

Page:

View: 139

Categories: Chemical engineering

Contributions to the Reduced Cost and Increased Reliability of Permanent Magnet Synchronous Machine Drive

Contributions to the Reduced Cost and Increased Reliability of Permanent Magnet Synchronous Machine Drive

For the simulations , the motor was connected up to a fan load , in which the
torque load varies inversely proportional to the square of the speed , up to the
rated speed . The output frequency of the drive was fixed at 15 Hz , producing a ...

Author: Brian A. Welchko

Publisher:

ISBN: WISC:89091056853

Category:

Page: 254

View: 380

Categories:

Contributed Papers

Contributed Papers

... on diffusive proton acceleration when a relativistic speed - up is important and
diffusion is realistically much faster than the ... simulations demonstrate a speed -
up of the diffusive shock acceleration time constant over the conventional value ...

Author:

Publisher:

ISBN: UOM:39015057353677

Category: Cosmic rays

Page:

View: 984

Categories: Cosmic rays

Efficient Parallel Simulation for Designing Multiprocessor Systems

Efficient Parallel Simulation for Designing Multiprocessor Systems

... simulation schemes give very little speedup while parallel SIMPLE can
effectively reduce the parallelism - loss factor , FP , and yield satisfying speedup .
CHAPTER 6 CONCLUSION 6.1 Summary and Contributions Simulation tools will
167.

Author: Jia-Jen Lin

Publisher:

ISBN: UOM:39015029199950

Category:

Page:

View: 770

Categories:

The AOPA Pilot

The AOPA Pilot

Shown here is the DALTO simulator moving belt with a runway light configuration
made up of fluorescent - painted dots . ... in the course of performing his official
CAP duties , then he may deduct the full $ 1 , 000 as a charitable contribution . ...
The new simulator is expected to speed up analysis of visual aids and permit
such investigations to be done at relatively low cost , according to Hans H .
Giesecke ...

Author: Aircraft Owners and Pilots Association

Publisher:

ISBN: STANFORD:36105015873891

Category: Aeronautics

Page:

View: 219

Categories: Aeronautics

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports

The evolution of stratiform cirrus clouds is simulated for various ambient field
cases. ... each irregularity is treated as a separate isolated hill or valley and the
contribution to speed up added to the other contributions for an overall solution.

Author:

Publisher:

ISBN: MINN:30000002701138

Category: Aeronautics

Page:

View: 491

Categories: Aeronautics

Contributions to Computer Aided Design

Contributions to Computer Aided Design

DIGITAL SIMULATION OF CLOSED LOOP VARIABLE SPEED DC MOTOR
DRIVE SYSTEM Yaozhong Xu , A . M ... The present paper is intended to take up
this work and bridge the gaps between the simulation and the laboratory testing .

Author: International Association of Science and Technology for Development

Publisher: Anaheim, Calif. ; Calgary : ACTA Press

ISBN: STANFORD:36105030013291

Category: Computer-aided design

Page: 74

View: 829

Categories: Computer-aided design

Advances in Design and Specification Languages for Embedded Systems

Advances in Design and Specification Languages for Embedded Systems

Furthermore, system simulation requires behavioural models to get sufficient
simulation performance. However, the speed-up of using behavioural models is
not yet sufficient. The third contribution describes possible simulator
improvements to ...

Author: Sorin Alexander Huss

Publisher: Springer Science & Business Media

ISBN: 9781402061493

Category: Technology & Engineering

Page: 358

View: 991

This book is the latest contribution to the Chip Design Languages series and it consists of selected papers presented at the Forum on Specifications and Design Languages (FDL'06), in September 2006. The book represents the state-of-the-art in research and practice, and it identifies new research directions. It highlights the role of specification and modelling languages, and presents practical experiences with specification and modelling languages.
Categories: Technology & Engineering

3D3V Simulation of Electron Cyclotron Resonance Plasmas

3D3V Simulation of Electron Cyclotron Resonance Plasmas

Speed - up of over 13 times the fastest locally available serial machine was
achieved , demonstrating the possibility of parallel ... Contributions were made in
improving the stability of cylindrical co - ordinate simulations , and handling
computer ...

Author: Venkatesh P. Gopinath

Publisher:

ISBN: MSU:31293010289365

Category: Cyclotron resonance

Page: 364

View: 870

Categories: Cyclotron resonance

Distributed Simulation

Distributed Simulation

Author: Society for Computer Simulation

Publisher:

ISBN: STANFORD:36105033130704

Category: Digital computer simulation

Page: 230

View: 200

Categories: Digital computer simulation

Conference Record

Conference Record

ABSTRACT To obtain large speed - up factors in Monte Carlo simulation using
importance sampling ( IS ) , the modification ... The other contribution of this
paper is to expose major issues when using IS in the simulation of large
communicaII .

Author: GLOBECOM.

Publisher:

ISBN: 0780306082

Category:

Page:

View: 672

Categories:

International Symposium on Quality Electronic Design

International Symposium on Quality Electronic Design

The contribution from each gate is applied as the weight of a vertex in the
constraint graph ( 2 ) . Constraint graph optimization ... Fourth , the size of the
constraint graph can be reduced in order to speed up the simulation . This is
achieved by ...

Author:

Publisher: IEEE

ISBN: 0769510256

Category: Technology & Engineering

Page: 497

View: 252

Annotation Contains 68 papers presented at the March 2001 symposium on electronic design and system-on-a-chip (SoC) design with intellectual property, employing deep sub-micron technologies. Many challenges to the design of high-quality SoCs are addressed, such as synthesis and verification, embedded memories and cores, interconnect issues, device modeling, and power management. Some of the topics are applying Moore's technology adoption life cycle model to quality of EDA software, CAD issues for CMOS VLSI design in SOI, models for interconnect capacitance extraction, memory bus encoding for low power, and constructive floorplanning with a yield objective. Other topics include revisiting the classical fault models through a detailed analysis of realistic defects, HW-SW co-design and verification of a multi-standard video and image codec, early detection of design sensitivities that cause yield loss for new products, and noise in radio frequency circuits. No subject index. c. Book News Inc.
Categories: Technology & Engineering

Proceedings

Proceedings

Our work has the following contributions : by a series of ( tij , Bij ) , 1 < = j < ki ,
where tij is the start of the jth on - period of that ... We designed a simulation
framework that can utilize prediction to speed up simulations involving TCP flows
, while ...

Author:

Publisher:

ISBN: UOM:39015048310067

Category: Digital computer simulation

Page:

View: 206

Categories: Digital computer simulation

Contributions

Contributions

The results are good in the sense that they are about the same as the estimate
provided by a simulation with eight times ... Calculations performed with a
potential truncated at about 6 Å will be about three times faster than those
performed with ...

Author: Stanford University. Department of Chemistry

Publisher:

ISBN: STANFORD:36105003166258

Category:

Page:

View: 332

Contains reprints of articles published by members of the department.
Categories:

Parallel Spatial Direct Numerical Simulations on the Intel IPSC 860 Hypercube

Parallel Spatial Direct Numerical Simulations on the Intel IPSC 860 Hypercube

The results suggest that a negligible change occurs in the cost contributions from
each numerical technique with an increase in the number of processors . The
speedup of each numerical technique as the number of processors increases ...

Author: Ronald D. Joslin

Publisher:

ISBN: NASA:31769000692981

Category: Computer simulation

Page: 46

View: 915

The implementation and performance of a parallel spatial direct numerical simulation (PSDNS) approach on the Intel iPSC/860 hypercube is documented. The direct numerical simulation approach is used to compute spatially evolving disturbances associated with the laminar-to-turbulent transition in boundary-layer flows. The feasibility of using the PSDNS on the hypercube to perform transition studies is examined. The results indicate that the direct numerical simulation approach can effectively be parallelized on a distributed-memory parallel machine. By increasing the number of processors, nearly ideal linear speed-ups are achieved with nonoptimized routines; slower than linear speed-ups are achieved with optimized (machine-dependent library) routines. This slower than linear speedup results because the FFT routine dominates the computational cost and because the routine indicates less than ideal speed-ups. However, with the machine-dependent routines, the total computational cost decreases by a factor of 4 to 5 compared with standard Fortran routines. The computational cost increases linearly with spanwise, wall- normal, and streamwise grid refinements. The hypercube with 32 processors was estimated to require approximately twice the amount of Cray supercomputer single processor time to complete a comparable simulation; however, it is estimated that a subgrid-scale model, which reduces the required number of grid points and becomes a large-eddy simulation (PSLES), would reduce the computational cost and memory requirements by a factor of 10 over the PSDNS. This PSLES implementation would enable transition simulations on the hypercube at a reasonable computational cost.
Categories: Computer simulation

CMG 85

CMG  85

We derived a simple formula to compute the speed up over sequential simulation
obtained by the distributed simulator in ... SR = 2 . log N Acknowledgements I am
thankful to Professor M . Gouda for his technical contributions to this work and ...

Author:

Publisher:

ISBN: CORNELL:31924005046648

Category: Computers

Page: 842

View: 343

Categories: Computers