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发表于 2006-7-18 22:52:39
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帮助文档里有：http://www.grid.org/help/faq_points.htm
How are points calculated?
Points are calculated and awarded each time a work unit is completed and a result is successfully returned to the UD Servers. Points are totaled across all machines aggregated under a specific UD Member.
Points are based upon the strength of your machine(s), measured against the UD Comparison Device. First, the "strength" of your participating machine(s) is calculated by measuring the following parameters of your machine against the United Devices (UD) Comparison Device:
CPU Power - The UD Agent periodically runs diagnostic tests to establish the processing power of your hardware configuration. These values are averaged and then divided by the CPU-Power value of the UD Comparison Device. The averaged value is then multiplied by the CPU time used to complete the work unit and return the results to the UD Servers.
Random Access Memory (RAM) - The UD Agent recognizes the amount of RAM in your hardware configuration. Each time the UD Agent starts, it detects any changes to the amount of installed RAM. This value is divided by the RAM value of the UD Comparison Device. The result of this calculation is then multiplied by the CPU time used to complete the work unit and return the results to the UD Servers.
Hard Disk Storage - On your preferences page, you set the megabytes of hard disk space allocated and available to UD projects. The lesser of the amount of hard drive space allocated and the amount of total space available on your hard drive partition, is divided by the Hard Disk Storage value of the UD Comparison Device. The result of this calculation is then multiplied by the CPU time used to complete the work unit and return the results to the UD Servers.
Effective Upstream Throughput - The UD Agent runs a diagnostic test on a regular basis that measures the upstream throughput of your hardware configuration, when communicating with the UD Servers. These values are averaged, and the result is divided by the Effective Upstream Throughput value of the UD Comparison Device. The result of this calculation is then multiplied by the CPU time used to complete the work unit and return the results to the UD Servers.
The final values for all five parameters are weighted, totaled, and factored to generate a whole number of points greater than or equal to 1 for each result returned.
While any individual parameter can overachieve the corresponding parameter for the UD Comparison Device by any level, no work unit completed by any machine will earn more than twice the total number of points the UD Comparison Device would earn for that same work unit.
Note: The slightest variance in any of the five parameters coupled with the inherent differences across multiple applications and work units within one project will result in different point values being assigned per work unit completion. |
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发表于 2006-7-18 11:36:34