Publication: A complete simulator for volunteer computing environments
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2016-06
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2016-07-05
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Abstract
Volunteer computing is a type of distributed computing in which ordinary people donate their
idle computer time to science projects like SETI@home, Climateprediction.net and many others.
BOINC provides a complete middleware system for volunteer computing, and it became generalized
as a platform for distributed applications in areas as diverse as mathematics, medicine,
molecular biology, climatology, environmental science, and astrophysics. In this document we
present the whole development process of ComBoS, a complete simulator of the BOINC infrastructure.
Although there are other BOINC simulators, our intention was to create a complete
simulator that, unlike the existing ones, could simulate realistic scenarios taking into account
the whole BOINC infrastructure, that other simulators do not consider: projects, servers, network,
redundant computing, scheduling, and volunteer nodes. The output of the simulations
allows us to analyze a wide range of statistical results, such as the throughput of each project,
the number of jobs executed by the clients, the total credit granted and the average occupation
of the BOINC servers. This bachelor thesis describes the design of ComBoS and the results
of the validation performed. This validation compares the results obtained in ComBoS with
the real ones of three different BOINC projects (Einstein@home, SETI@home and LHC@home).
Besides, we analyze the performance of the simulator in terms of memory usage and execution
time. This document also shows that our simulator can guide the design of BOINC projects,
describing some case studies using ComBoS that could help designers verify the feasibility of
BOINC projects.
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Berkeley Open Infrastructure for Network Computing (BOINC), Distributed computing, Simulation, Volunteer computing