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Boinc projects quantum gravity1/3/2024 ![]() ![]() This makes it extremely difficult for new users to rapidly gain ground in the rankings, even if they are running many computers. This highly favors users and teams that have been around for the longest time. Users and teams commonly determine world rank by comparing the total number of credits accumulated. If a work unit is returned past the given deadline (in most cases) or is found to be inaccurate, it is marked as invalid and results in no credit. This amount is immediately added to the computer, user, and team total. Once validated, the computer is granted credit, which can be less than, equal to, or greater than what was requested. It must first have that work unit validated by the given, project-specific method. When a computer processes and returns a work unit, it receives no credit for that action alone. However, certain other projects award a flat amount per work unit returned and validated.Ĭredits are tracked internally for computers, users, and teams. In general, the top and bottom claimed credits are dropped and an average of the remaining is taken. Each project can use their own policy depending on what they see is best for their specific needs. If they all agree, then the credit is calculated and all hosts receive the same amount regardless of what they asked for. Most projects require a consensus to be reached by having multiple hosts return the same work unit. Since systems have many variables, including the amount of RAM, the processor speed, and specific architectures of different motherboards and CPUs, there can be wide discrepancies in the number of credits that different computers (and projects) judge a user to have earned. The interface then can “guess” at the amount of credit a user should receive. In so doing, BOINC uses benchmarks to measure the speed of a system, combining that figure with the amount of time required for a work unit to be processed. The BOINC system allows for work of any length to be processed and have identical amounts of credit issued to a user. The actual computational difficulty needed to run a given work unit is the basis for the number of credits that should be granted.
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