The Experts below are selected from a list of 69480 Experts worldwide ranked by ideXlab platform
Ron Brightwell - One of the best experts on this subject based on the ideXlab platform.
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ready mode Receive an optimized Receive Function for mpi
European PVM MPI Users Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface, 2002Co-Authors: Ron BrightwellAbstract:This paper describes an extension to the MPI Standard that offers the potential to increase performance for receiving messages. This extension, the ready-mode Receive, is the Receive-side equivalent of the ready-mode send. This paper describes the semantics of this new Receive Function and discusses the potential for performance improvement that it offers. In particular, we discuss how the current trend toward using intelligent network interfaces may increase the potential for significant performance improvement.
Girae Kim - One of the best experts on this subject based on the ideXlab platform.
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the auto tracking communication link using planar active rectrodirective array
Journal of information and communication convergence engineering, 2007Co-Authors: Girae KimAbstract:In this paper, a planar active retrodirective four-element array with subharmonic phase conjugation mixers based on anti-parallel diode pairs (APDPs) is designed, and its application in the auto-tracking duplex communication link is presented. As compared to previous phase conjugation mixers using twice RF frequency for LO frequency, the proposed conjugation mixers need only half RF frequency so that it can be easily applied for millimeter-wave applications. The proposed architecture, which conventionally performs the Function of the transmission of an incident signal back in the direction of its source, is modified in order to include a Receive Function. Experimental verification of these architectures is performed at 1GHz and the results from the prototypes are compared with a theoretical model.
Madelynn Jade Druhen - One of the best experts on this subject based on the ideXlab platform.
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anxious solitary children at recess naturalistic observation of sequential peer exclusion victimization and acceptance processes
2009Co-Authors: Madelynn Jade DruhenAbstract:This investigation assessed the processes by which anxious solitary children (i.e., those who are shy and play alone at elevated rates) were excluded, victimized, and accepted by their familiar peers. Peer sociometric nominations were conducted with 688 third grade children of diverse socioeconomic and racial/ethnic backgrounds. A subset of 163 of these children, approximately half of whom were identified as anxious solitary by their peers, was observed at free play during recess with familiar peers for a total of 25 minutes each. These observations were analyzed sequentially to establish child behavior that coincided with, preceded, and followed peer exclusion, victimization, and acceptance. Anxious solitary children compared to control children exhibited behavior at different frequencies and durations, Received different responses from peers to the same behavior, and responded differently to the same type of peer treatment. Thus, the anxious solitary children's behavior and the peer responses they Receive Function under different contingencies than those of their non-anxious solitary peers.
Teng Xiumin - One of the best experts on this subject based on the ideXlab platform.
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airship radar conformal thinned array antenna and its signal processing method
2014Co-Authors: Li Daojing, Li Liechen, Teng XiuminAbstract:The invention discloses an airship radar conformal thinned array antenna and its signal processing method. The conformal thinned array antenna comprises a plurality of sparsely-distributed subarrays on a ship body. The subarrays adopt active phase control subarrays, and a rigid structure is adopted to guarantee subarray face control precision. A receiving/transmitting assembly of the subarrays is a stereoscopic integrated tile structure with radiation array elements. Each subarray transmits and Receives frequency division or code division orthogonal signals so as to realize a full-array transmit-Receive Function. Observation scope of the conformal thinned array antenna is determined by subarray antenna beamwidth. High spatial resolution is realized by full-array antenna. The airship radar with the conformal thinned array antenna is used for high-resolution ground imaging and moving object detection.
Jens Volkert - One of the best experts on this subject based on the ideXlab platform.
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recent advances in parallel virtual machine and message passing interface 9th european pvm mpi users group meeting linz austria september 29 october 2 2002 proceedings
PVM MPI, 2002Co-Authors: Dieter Kranzlmuller, Peter Kacsuk, Jack Dongarra, Jens VolkertAbstract:Invited Talks.- High Performance Computing, Computational Grid, and Numerical Libraries.- Performance, Scalability, and Robustness in the Harness Metacomputing Framework.- Surfing the Grid - Dynamic Task Migration in the Polder Metacomputer Project.- Petascale Virtual Machine: Computing on 100,000 Processors.- MPICH2: A New Start for MPI Implementations.- Making Grid Computing Mainstream.- Process Management for Scalable Parallel Programs.- A Security Attack and Defense in the Grid Environment.- Performance Analysis: Necessity or Add-on in Grid Computing.- Tutorials.- MPI on the Grid.- Parallel Application Development with the Hybrid MPI+OpenMP Programming Model.- Special Session: CrossGrid.- CrossGrid and Its Relatives in Europe.- Towards the CrossGrid Architecture.- Application of Component-Expert Technology for Selection of Data-Handlers in CrossGrid.- Training of Neural Networks: Interactive Possibilities in a Distributed Framework.- An Infrastructure for Grid Application Monitoring.- The CrossGrid Performance Analysis Tool for Interactive Grid Applications.- Special Session: ParSim.- Current Trends in Numerical Simulation for Parallel Engineering Environments.- Automatic Runtime Load Balancing of Dedicated Applications in Heterogeneous Environments.- A Contribution to Industrial Grid Computing.- Parallel Computing for the Simulation of 3D Free Surface Flows in Environmental Applications.- Testbed for Adaptive Numerical Simulations in Heterogeneous Environments.- Simulating Cloth Free-Form Deformation with a Beowulf Cluster*.- Applications Using MPI and PVM.- Concept of a Problem Solving Environment for Flood Forecasting.- A Comprehensive Electric Field Simulation Environment on Top of SCI.- Application of a Parallel Virtual Machine for the Analysis of a Luminous Field.- Solving Engineering Applications with LAMGAC over MPI-2.- Distributed Image Segmentation System by a Multi-agents Approach (Under PVM Environment).- Parallel Algorithms Using Message Passing.- Parallel Global Optimization of High-Dimensional Problems.- Adjusting the Lengths of Time Slices when Scheduling PVM Jobs with High Memory Requirements.- A PVM-Based Parallel Implementation of the REYES Image Rendering Architecture.- Enhanced File Interoperability with Parallel MPI File-I/O in Image Processing.- Granularity Levels in Parallel Block-Matching Motion Compensation.- An Analytical Model of Scheduling for Conservative Parallel Simulation.- Parallel Computation of Pseudospectra Using Transfer Functions on a MATLAB-MPI Cluster Platform.- Development and Tuning of Irregular Divide-and-Conquer Applications in DAMPVM/DAC.- Observations on Parallel Computation of Transitive and Max-Closure Problems.- Evaluation of a Nearest-Neighbor Load Balancing Strategy for Parallel Molecular Simulations in MPI Environment.- Programming Tools for MPI and PVM.- Application Recovery in Parallel Programming Environment.- IP-OO : A Parallel Remeshing Toolkit.- Modular MPI and PVM Components.- Communication Infrastructure in High-Performance Component-Based Scientific Computing.- On Benchmarking Collective MPI Operations.- Implementations of MPI and PVM.- Building Library Components that Can Use Any MPI Implementation.- Stampi-I/O: A Flexible Parallel-I/O Library for Heterogeneous Computing Environment.- (Quasi-) Thread-Safe PVM and (Quasi-) Thread-Safe MPI without Active Polling.- An Implementation of MPI-IO on Expand: A Parallel File System Based on NFS Servers.- Design of DMPI on DAWNING-3000.- MPICH-CM: A Communication Library Design for a P2P MPI Implementation.- Design and Implementation of MPI on Portals 3.0.- Porting PVM to the VIA Architecture Using a Fast Communication Library.- LICO: A Multi-platform Channel-Based Communication Library.- Notes on Nondeterminism in Message Passing Programs.- Extensions of MPI and PVM.- Web Remote Services Oriented Architecture for Cluster Management.- Improving Flexibility and Performance of PVM Applications by Distributed Partial Evaluation.- Ready-Mode Receive: An Optimized Receive Function for MPI.- Improved MPI All-to-all Communication on a Giganet SMP Cluster.- Fujitsu MPI-2: Fast Locally, Reaching Globally.- Performance Analysis and Optimization.- Communication and Optimization Aspects on Hybrid Architectures.- Performance Analysis for MPI Applications with SCALEA.- A Performance Study of Load Balancing Strategies for Approximate String Matching on an MPI Heterogeneous System Environment.- An Analytical Model for Pipeline Algorithms on Heterogeneous Clusters.- Architectures for an Efficient Application Execution in a Collection of HNOWS.
