C# 如何在 Parallel.For 中配置最大线程数
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/15931346/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to configure a maximum number of threads in a Parallel.For
提问by Alex. S.
This is the example microsoft presents for the parallel for, and I'd like to know how configure a maximum number of threads for this code.
这是微软为并行提供的示例，我想知道如何为此代码配置最大线程数。
// A basic matrix multiplication.
// Parallelize the outer loop to partition the source array by rows.
System.Threading.Tasks.Parallel.For(0, matARows, i =>
{
for (int j = 0; j < matBCols; j++)
{
// Use a temporary to improve parallel performance.
double temp = 0;
for (int k = 0; k < matACols; k++)
{
temp += matA[i, k] * matB[k, j];
}
result[i, j] = temp;
}
}); // Parallel.For
采纳答案by Jon Skeet
You need to specify a ParallelOptionsvalue with a MaxDegreeOfParallelism:
您需要指定一个ParallelOptions值MaxDegreeOfParallelism：
For example:
例如：
Parallel.For(0, 10, new ParallelOptions { MaxDegreeOfParallelism = 4 }, count =>
{
Console.WriteLine(count);
});
回答by Sasha
Use MaxDegreeOfParalelismproperty for running the loop
使用MaxDegreeOfParalelism属性运行循环
Parallel.For(0, 1000, new ParallelOptions { MaxDegreeOfParallelism = 2 }, ...);
回答by Tyler Lee
I'd suggest you take a look at the ParallelOption.MaxDegreesofParellelismand pass it into the Formethod
我建议你看看ParallelOption.MaxDegreesofParellelism并将其传递给For方法
