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The rapid growth of InfiniBand, 10 Gigabit Ethernet/iWARP and IB WAN extensions is increasingly gaining momentum for designing high end computing clusters and data-centers. For typical applications such as data staging, content replication and remote site backup, FTP has been the most popular method to transfer data within and across these clusters. Although the existing sockets based FTP approaches...
Scientific computing has seen an immense growth in recent years. The Message Passing Interface (MPI) has become the de-facto standard for parallel programming model for distributed memory systems. As the system scale increases, application writers often try to increase the overlap of computation and communication. The MPI-2 standard expanded MPI to include one-sided communication semantics that has...
Message oriented middleware (MOM) is a key technology in financial market data delivery. In this context we study the advanced message queuing protocol (AMQP), an emerging open standard for MOM communication. We design a basic suite of benchmarks for AMQPpsilas Direct, Fanout, and Topic Exchange types. We then evaluate these benchmarks with Apache Qpid, an open source implementation of AMQP. In order...
High performance interconnects such as InfiniBand (IB)have enabled large scale deployments of High Performance Computing (HPC) systems. High performance communication and IO middleware such as MPI and NFS over RDMA have also been redesigned to leverage the performance of these modern interconnects. With the advent of long haul InfiniBand (IB WAN), IB applications now have inter-cluster reaches. While...
Current data-centers employ admission control mechanism to maintain low response time and high throughput under overloaded scenarios. Existing mechanisms use internal (on the overloaded server) or external (on the front- end proxies) approaches. External admission control is preferred since it can be performed transparently without any modifications to the overloaded servers and global decisions can...
Distributed applications tend to have a complex design due to issues such as concurrency, synchronization and communication. Researchers in the past have proposed simpler abstractions to hide these complexities. However, many of the proposed techniques use messaging protocols which incur high overhead and are not very scalable. To address these limitations, in our previous work [20], we proposed an...
Scientific computing has seen an immense growth in recent years. MPI has become the de facto standard for parallel programming model for distributed memory systems. MPI-2 standard expanded MPI to include onesided communications. Computation and communication overlap is an important goal for one-sided applications. While the passive synchronization mechanism for MPI-2 one-sided communication allows...
Modern interconnects and corresponding high performance MPIs have been feeding the surge in the popularity of compute clusters and computing applications. Recently with the introduction of the iWARP (Internet wide area RDMA protocol) standard, RDMA and zero-copy data transfer capabilities have been introduced and standardized for Ethernet networks. While traditional Ethernet networks had largely been...
There has been a massive increase in computing requirements for parallel applications. These parallel applications and supporting cluster services often need to share system-wide resources. The coordination of these applications is typically managed by a distributed lock manager. The performance of the lock manager is extremely critical for application performance. Researchers have shown that the...
Large scale InfiniBand clusters are becoming increasingly popular, as reflected by the TOP 500 supercomputer rankings. At the same time, fat tree has become a popular interconnection topology for these clusters, since it allows multiple paths to be available in between a pair of nodes. However, even with fat tree, hot-spots may occur in the network depending upon the route configuration between end...
Current data-centers lack in efficient support for intelligent services, such as requirements for caching documents and cooperation of caching servers, efficiently monitoring and managing the limited physical resources, load-balancing, controlling overload scenarios, that are becoming a common requirement today. On the other hand, the system area network (SAN) technology is making rapid advances during...
In the past few years several researchers have proposed and configured data-centers providing multiple independent services, known as shared data-centers. For example, several ISPs and other Web service providers host multiple unrelated Web-sites on their data-centers allowing potential differentiation in the service provided to each of them. Such differentiation becomes essential in several scenarios...
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