Xgrid Technical Preview 2 is a distributedcomputing software technology from Apple Computer, Inc. Xgrid leverages the UNIX-based capabilities of Mac OS X to enable the rapid aggregation of Macintosh systems into a si...
详细信息
ISBN:
(纸本)0780321754
Xgrid Technical Preview 2 is a distributedcomputing software technology from Apple Computer, Inc. Xgrid leverages the UNIX-based capabilities of Mac OS X to enable the rapid aggregation of Macintosh systems into a simple yet powerful computational grid which can run a wide range of standard and custom solutions with minimal code changes. To demonstrate the technology, the software is run on a networked rack of Xserve G5 servers and a PowerBook G4 laptop. the demonstration shows how Xgrid is utilized to distribute long-running batch and parallel jobs to a local grid of Mac OS X-based computers.
In order to provide Java the ability for supporting scientific parallelcomputing, we introduce a data parallel extension to Java language with runtime system support. We will provide the distributed arrays extension ...
详细信息
ISBN:
(纸本)0818691948
In order to provide Java the ability for supporting scientific parallelcomputing, we introduce a data parallel extension to Java language with runtime system support. We will provide the distributed arrays extension to Java, and discuss the related operation anal control over the new distributed array. Communication involving distributed arrays are handles through a standard of collective communication library. WE also will make the programming in a Single Program Multiple Data (SPMD) model.
Graph problems are finding increasing applications in high performance computing disciplines. Although many regular problems can be solved efficiently in parallel, obtaining efficient implementations for irregular gra...
详细信息
ISBN:
(纸本)9783540747413
Graph problems are finding increasing applications in high performance computing disciplines. Although many regular problems can be solved efficiently in parallel, obtaining efficient implementations for irregular graph problems remains a challenge. We propose techniques for designing and implementing efficient parallel algorithms for graph problems on symmetric multiprocessors and chip multiprocessors with a case study of parallel tree and connectivity algorithms. the problems we study represent a wide range of irregular problems that have fast theoretic parallel algorithms but no known efficient parallel implementations that achieve speedup without serious restricting assumptions about the inputs. We believe our techniques will be of practical impact in solving large-scale graph problems.
this paper presents an efficient and scalable approach to solve global optimization problem by distributedparallel tunneling using mobile agents. To use the parallel and concurrent characteristic of the tunneling alg...
详细信息
ISBN:
(纸本)3540240136
this paper presents an efficient and scalable approach to solve global optimization problem by distributedparallel tunneling using mobile agents. To use the parallel and concurrent characteristic of the tunneling algorithms and increase the speed of the computing, we use mobile agents as a tool for parallel implementation in a distributed environment. the experimental results demonstrate the feasibility and the potential of the proposed method.
Based on the problem of TB level mass data lacking of parallel patterns which is distributed on earth and accessed by internet, we focus on the research of parallelcomputing architecture structure-virtual cluster bas...
详细信息
ISBN:
(纸本)9780769533056
Based on the problem of TB level mass data lacking of parallel patterns which is distributed on earth and accessed by internet, we focus on the research of parallelcomputing architecture structure-virtual cluster based on cloud computing. Meanwhile, the parallel data mining algorithm is studied, and the effectiveness of parallel data mining algorithm based on this platform is proved.
In this paper, a new signal detection scheme using bothparallel interference cancellation (PIC) and equalization for the efficient joint distributed space-time coding is proposed to suppress the impact of imperfect s...
详细信息
An autonomous distributed system, such as an ad hoc network or peer-to-peer-based file sharing system, consists of nodes contributing to the system. However, egoistic nodes could collapse such a system. In this paper,...
详细信息
ISBN:
(纸本)9781538620878
An autonomous distributed system, such as an ad hoc network or peer-to-peer-based file sharing system, consists of nodes contributing to the system. However, egoistic nodes could collapse such a system. In this paper, we propose a protocol for an autonomous distributed messaging system for relaying messages between participants. It autonomously and distributedly provides and manages incentive for relaying using blockchain technology. We consider several types of fraud on the system and how to prevent them.
To take full advantage of modern high performance architectures, many large-scale data-driven applications require loosely-coupled, fine-grained asynchronous communication. Accordingly, efficient lightweight middlewar...
详细信息
ISBN:
(纸本)9781728138015
To take full advantage of modern high performance architectures, many large-scale data-driven applications require loosely-coupled, fine-grained asynchronous communication. Accordingly, efficient lightweight middleware based on state-of-the-art networking technology such as RDMA is becoming a necessity. the performance critical task of handling RDMA synchronization, for existing message passing runtimes are mostly coarse granular in nature and thus may be associated with various hidden costs. While low-level RDMA libraries expose fine-grained RDMA communication that can be efficiently controlled, the critical tasks of RDMA buffer management, synchronization and flow control are left to the userspace applications requiring tedious programming effort that may lead to sub-optimal performance. In this paper we present a user-space RDMA transport layer that allows RDMA-enabled memory to be managed internally while still exposing zero-copy completion event-based RDMA transfers for message passing. the integration of an RDMA transport layer enables the opportunity for parallel applications to utilize RDMA-managed buffers for accelerating communication while co-existing with high-level MPI, GASNet or similar middleware. We show a performance speedup of up to 8X in latency/bandwidth benchmarks and 5%-90% improvement in response time or messaging rate in three reference applications with regard to their MPI implementations.
Reproducibility in computer science is often seen as a difficult to impossible task requiring bespoke hardware and software that others simply cannot field. Because of this, alternative approaches to reproducibility f...
详细信息
ISBN:
(纸本)9781450391993
Reproducibility in computer science is often seen as a difficult to impossible task requiring bespoke hardware and software that others simply cannot field. Because of this, alternative approaches to reproducibility for computer systems is required. this workshop offers experiences and innovations in practical approaches for reproducibility for computer systems. the workshop also serves as the home of the ACM Exploratory Interest Group on Reproducibility and a community gathering for those interested in reproducible computer science research.
Genomic data leaks are irreversible. Leaked DNA cannot be changed, stays disclosed indefinitely, and affects the owner's family members as well. the recent large-scale genomic data collections [1], [2] render the ...
详细信息
ISBN:
(纸本)9781665497473
Genomic data leaks are irreversible. Leaked DNA cannot be changed, stays disclosed indefinitely, and affects the owner's family members as well. the recent large-scale genomic data collections [1], [2] render the traditional privacy protection mechanisms, like the Health Insurance Portability and Accountability Act (HIPAA), inadequate for protection against the novel security attacks [3]. On the other hand, data access restrictions hinder important clinical research that requires large datasets to operate [4]. these concerns can be naturally addressed by the employment of privacy-enhancing technologies, such as a secure multiparty computation (MPC) [5]–[10]. Secure MPC enables computation on data without disclosing the data itself by dividing the data and computation between multiple computing parties in a distributed manner to prevent individual computing parties from accessing raw data. MPC systems are being increasingly adopted in fields that operate on sensitive datasets [11]–[13], such as computational genomics and biomedical research [14]–[22].
暂无评论