在foreach Visual Basic) 作業中執行具有 64 位索引的 (For Each ,並在 上 OrderablePartitioner<TSource> 執行執行緒本機資料,其中反復專案可以平行執行、迴圈選項可以設定,以及可以監視及操作迴圈的狀態。 C# 複製 public static System.Threading.Tasks.Parallel
return Parallel.PartitionerForEachWorker((Partitioner) Partitioner.Create(source), parallelOptions, body, bodyWithState, bodyWithStateAndIndex, bodyWithStateAndLocal, bodyWithEverything, localInit, localFinally); } } 这里区分了数组和列表和使用分区器执行Foreach,这里为什么要区分这个数据类型呢? 数组执行的...
Each element's index is used in the logic of the predicate function. Zip<TFirst,TSecond>(IEnumerable<TFirst>, IEnumerable<TSecond>) Produces a sequence of tuples with elements from the two specified sequences. Zip<TFirst,TSecond,TThird>(IEnumerable<TFirst>, IEnumerable<TSecond>, ...
The Database Engine can also reduce the degree of parallelism if the leading key column of a non-partitioned index has a limited number of distinct values or the frequency of each distinct value varies significantly. For more information, see Query Processing Architecture Guide. Note Parallel ...
Executes a foreach (For Each in Visual Basic) operation with thread-local data on a Partitioner in which iterations may run in parallel, loop options can be configured, and the state of the loop can be monitored and manipulated. ForEach<TSource,TLocal>(OrderablePartitioner<TSource>, Parallel...
Using the homomorphic encryption (Fan and Vercauteren, 2012), we propose a parallel PIR (ParPIR) protocol with index anonymity for untrusted databases. For better description, we assume that the database D stores n=α⋅N/2 entries for some α∈Z∗, and the maximum size of each entry...
If'useParallel'and'useGPU'are'yes', then each worker with a unique GPU uses that GPU, and other workers revert to CPU. If'useParallel'is'yes'and'useGPU'is'only', then workers with unique GPUs are used. Other workers are not used, unless no workers have GPUs. In the case with no...
Each operation is performed in parallel if possible. When the PX servers are finished executing the statement, the PX coordinator performs any portion of the work that cannot be executed in parallel. For example, a parallel query with a SUM() operation requires adding the individual subtotals...
Any folders that appear after the first occurrence of amatlabrootfolder are added after thematlabrootgroup of folders on the workers' paths. For example, suppose thatmatlabrooton the client isC:\Applications\matlab\. With an open parallel pool, execute the following to set the path on the cli...
This declarative query helps the PLINQ to delay determination of optimal resource uses, such as the number of processors to run the query until it is actually executed in the foreach with action a . It will arrange for parts of the query to run on the available processors through the ...