Grid'5000 user report for Brice Videau

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User information

Brice Videau (users, user, grenoble, ml-users user)
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  • Mput Benchmark (File broadcast) (Middleware) [achieved]
    Description: The mput broadcasting program is a tool for deploying software in grid environment. It is establishing a chain between the nodes where the data is to be sent, and send the data along this chain. It achieves great performance and reliability. We measured the data throughput of mput on Grid5000 using a fractional factorial design of experiment. We studied the impact of the folowing factors : - File size - Number of node to send the data - Number of cluster used in the experiment - Number of CPU used on a node - Method used to deploy mput - Load of the nodes - Pauses between experiment repetitions
    Results: We found that the most influent parameters were the number of clusters used, the size of the file and the load of the machines.
  • Experiment Management for Grid'5000 (Middleware) [achieved]
    Description: We studied the reproducibility of experiments in a grid environment. We found that even nodes supposed to be identical sometimes performed very differently from one another. This variability was mainly due to hardware weakness, hardware differences or misconfiguration of some nodes. This variability proved to induce serious bias in experiments.
    Results: This study showed that to obtain meaningfull experiment results one has to carefully study each node in order to prove them correctly working before the experiment takes place. The impossibility to achieve such a task by hand implies that some tools need to be developed to automate the process.
  • Kastafior Benchmark: a broadcasting tool evaluation (Other) [in progress]
    Description: The Kastafior is broadcasting program based and Taktuk tool. As Mput (Brice Videau's report) Kastafior establish a chain between the nodes where the data is to be sent, and send the data along this chain. We measured the data through in various conditions on Grid'5000. We use an early version a Expo middleware to conduct experiments.



    Success stories and benefits from Grid'5000

    • Overall benefits
    • Grid5000 is large scale, with homogeneous clusters. We can thus conduct performance studies that would be impossible on platforms such as PlanetLab or EmuLab. It is also easy to use and still growing.

    last update: 2007-03-07 15:49:59

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