使用 Alea GPU 迭代一组自定义类

问题描述

我是一个业余爱好者，想将我的 GPU 用于我的个人项目.我已经安装并运行了 Alea GPU 包.

I'm a hobbyist and would like to utilize my GPU for my personal projects.I've gotten the Alea GPU package installed and working.

下面产生相同的输出:

    Dim y(10) As Integer
    For i = 0 To 10 - 1
        y(i) = i
    Next
    Dim y2(10) As Integer

    Array.Copy(y, y2, y.Length)

    Parallel.For(0, y.Length - 1, Sub(i) y(i) += i)
    Debug.WriteLine(y.Aggregate(Function(now, future) now + future))

    Alea.Gpu.Default.For(0, y2.Length - 1, Sub(i) y2(i) += i)
    Debug.WriteLine(y2.Aggregate(Function(now, future) now + future))

两者都返回 90.这是最基本的，但我需要更多.

Both return 90. That's the most basic but what i need is a lot more.

我正在尝试将我的其他资源密集型 parallel.foreach 循环转换为 GPU.Default.For，以便我可以充分利用我的 PC.

I'm trying to convert my other more resource intensive parallel.foreach loops into GPU.Default.For, so i can utilize the full power of my PC.

请记住，所有这些都可以完美地作为 parallel.foreach 循环运行.其余代码目前已被注释掉，这是阻止它工作的原因.

Keep in mind that all this worked flawlessly as a parallel.foreach loop. The rest of the code is currently commented out, this is the thing that prevents it from working.

Gpu.Default.For(0, Inventory.ItemsInventory.Count - 1,
                Sub(i)
                        Dim Level_1 = Inventory.ItemsInventory.ElementAt(i) 'Exception on this line, doesn't happen if commented out.
                end sub)

'Inventory'是一个自定义类，其中'ItemsInventory'是一个字典(字符串，InventoryItem)'InventoryItem'也是一个自定义类.

'Inventory' is a custom class, where 'ItemsInventory' is a dictionary(of string, InventoryItem) 'InventoryItem' is also a custom class.

我得到的例外是:

ArgumentException 抛出:Alea.dll 中的System.Exception"附加信息:无法获取字段$VB$Local_Inventory".

接下来，我尝试定义一个InventoryItem"数组，因为这是我对这个特定循环感兴趣的内容.

Next i tried to define an Array of 'InventoryItem' as that was what i was interested in for this particular loop.

Dim ItemsArray() As InventoryItem = Inventory.ItemsInventory.Select(Function(f) f.Value).ToArray
                Gpu.Default.For(0, ItemsArray.Length - 1,
                Sub(i)
                        Dim Level_1 = ItemsArray(i)
                end sub)

这就是我现在得到的:

抛出异常:Alea.dll 中的System.Exception"附加信息:不允许非 blittable 数组 MyApp.MainWindow+InventoryItem[] 传输，您可以通过 app.config 更改此设置.

但我不知道那部分是什么样子的，我可以"添加到 app.config 文件中，我还没有在网上找到任何东西来解决这个问题.

But i don't know how that part looks like, that i 'can' add to the app.config file, i haven't found anything online to solve this.

推荐答案

关于第二个例外，以下页面显示了在 .NET 配置文件中设置 Alea GPU 的基础知识:

With regards to the second exception, the following page shows the basics of setting up Alea GPU in a .NET config file:

http://www.aleagpu.com/release/3_0_2/doc/faq.html

阅读后，我检查了 Alea.Settings 类型的文档，发现它具有 SettingElements.MemoryElement 类型的 Memory 属性>.

After reading that, I checked the documentation for the Alea.Settings type and found that it has a Memory property of type SettingElements.MemoryElement.

http://www.aleagpu.com/release/3_0_2/api/html/73614a0a-9c5c-cce6-7114-fc6833cb31f2.htm

该类型具有 Boolean 属性 AllowNonBlittableMemoryTransfer.

That type has a Boolean property AllowNonBlittableMemoryTransfer.

这表明，为了在您的场景中允许非 blittable 类型，您的配置文件应如下所示:

That suggests that, to allow non-blittable types in your scenario, your config file should look like this:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="aleaSettings" type="Alea.Settings, Alea"/>
  </configSections>
  <aleaSettings>
    <memory allowNonBlittableMemoryTransfer="true"/>
  </aleaSettings>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
  </startup>
</configuration>

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