Qasim Ali

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VMware Abstract. A major obstacle to virtualizing HPC workloads is a concern about the performance loss due to virtualization. We will demonstrate that new features significantly enhance the performance and scalabil-ity of virtualized HPC workloads on VMware's virtualization platform. Specifically, we will discuss VMware's ESXi Server performance for(More)
This paper presents high-performance collective communication algorithms and implementations that exploit the unique architectural features of the Cell heterogeneous multicore processor. This paper specifically describes novel algorithms <i>for the barrier, broadcast, reduce, all-reduce</i>, and <i>all-gather</i> collective operations, and shows the(More)
The Culex quinquefaciatus Say, commonly known as the southern house mosquito, is well known for biting nuisance and vectoring of some fatal diseases. Synthetic chemicals have been relied upon as the major control measure to control mosquitoes. Therefore, we have evaluated 21 insecticides belonging to different chemical classes for their toxicity to C.(More)
This paper presents and validates performance models for a varietyvof high-performance collective communication algorithms for systems with Cell processors. The systems modeled include a single Cell processor, two Cell chips on a Cell Blade, and a cluster of Cell Blades. The models extend PLogP, the well-known point-topoint performance model, by accounting(More)
In the presence of dynamic classloading, performing interprocedural analysis (IPA) too early can lead to repeatedly performing the IPA as new classes are loaded, while performing it too late will cause a performance degradation by running unoptimized code for too long. This paper investigates how programs load classes and how this affects the performance(More)
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