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With the fast improvement in technology, we are now moving toward exascale computing. Many experts predict that exascale computers will have millions of nodes, billions of threads of execution, hundreds of petabytes of inner memory and exabytes of ...

Networks continue to change to support new applications, improve reliability and performance and reduce the operational cost. The changes are made to the network in the form of upgrades such as software or hardware upgrades, new network or service ...

Service monitoring is an essential part of service-oriented software systems and is required for meeting regulatory requirements, verifying compliance to service-level agreements, optimising system performance, and minimising the cost of hosting Web ...

With the growing imbalance between processor and memory performance it becomes more and more important to optimize the memory controller features to obtain the maximum possible performance out of the memory subsystem. This paper presents a study of the ...

The use of parallel database systems to deliver high performance has become quite common. Although queries submitted to these database systems are executed in parallel, the interaction between applications and current parallel database systems is ...

Abstract: Ray tracing is a simple but effective technique for high quality graphics with sophisticated light models. The large number of ray-object intersection tests make ray tracing computationally intensive. Several techniques such as bounding ...

This paper evaluates the benefit of adding a shared cache to the network interface as a means of improving the performance of networked workstations configured as a distributed shared memory multiprocessor. A cache on the network interface offers the ...

As more and more transistors are incorporated into processor chips, the circuits are becoming more and more error-prone, necessitating the introduction of fault tolerance techniques. This paper investigates techniques to incorporate fault tolerance in ...

We explore processor-cache affinity scheduling of parallel network protocol processing, in a setting in which protocol processing executes on a shared-memory multiprocessor concurrently with a general workload of non-protocol activity. We find that ...

Wavelet transform is a mathematical tool through which 2D spatial image data can be mapped into wavelet space for compact representation and for various signal analyses. The highly regular structure of the wavelet decomposition algorithm makes it well-...

This paper presents insight into important aspects of the performance of KSR1 multiprocessor. We report performance degradations caused by false sharing of memory subpages (128 bytes long units of transfer and consistency) between local caches in the ...

An excessive number of remote accesses or a non-uniform distribution of remote accesses can cause even well-designed multiprocessors to exhibit severe memory and network contention. Producer/consumer data generates a particularly common sharing pattern ...

Detecting independent operations is a prime objective for computers that are capable of issuing and executing multiple operations simultaneously. The number of instructions that are simultaneously examined for detecting those that are independent is the ...

We investigate synchronization activities in application executing on distributed-memory MIMD architectures. Three applications are used to quantify the performance impact of synchronization as the number of processors is increased. We also investigate ...