[英]Cloo OpenCL c# Problem
我试图让一个简单的Cloo程序运行,但它不起作用,谁能告诉我为什么?
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Cloo;
using System.Runtime.InteropServices;
namespace HelloWorld
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
ComputeContextPropertyList cpl = new ComputeContextPropertyList(ComputePlatform.Platforms[0]);
ComputeContext context = new ComputeContext(ComputeDeviceTypes.Gpu, cpl, null, IntPtr.Zero);
string kernelSource = @"
kernel void VectorAdd(
global read_only float* a,
global read_only float* b,
global write_only float* c )
{
int index = get_global_id(0);
c[index] = a[index] + b[index];
}
";
long count = 20;
float[] arrA = new float[count];
float[] arrB = new float[count];
float[] arrC = new float[count];
Random rand = new Random();
for (int i = 0; i < count; i++)
{
arrA[i] = (float)(rand.NextDouble() * 100);
arrB[i] = (float)(rand.NextDouble() * 100);
}
ComputeBuffer<float> a = new ComputeBuffer<float>(context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, arrA);
ComputeBuffer<float> b = new ComputeBuffer<float>(context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, arrB);
ComputeBuffer<float> c = new ComputeBuffer<float>(context, ComputeMemoryFlags.WriteOnly, arrC.Length);
ComputeProgram program = new ComputeProgram(context, new string[] { kernelSource });
program.Build(null, null, null, IntPtr.Zero);
ComputeKernel kernel = program.CreateKernel("VectorAdd");
kernel.SetMemoryArgument(0, a);
kernel.SetMemoryArgument(1, b);
kernel.SetMemoryArgument(2, c);
ComputeCommandQueue commands = new ComputeCommandQueue(context, context.Devices[0], ComputeCommandQueueFlags.None);
ComputeEventList events = new ComputeEventList();
commands.Execute(kernel, null, new long[] { count }, null, events);
arrC = new float[count];
GCHandle arrCHandle = GCHandle.Alloc(arrC, GCHandleType.Pinned);
commands.Read(c, false, 0, count, arrCHandle.AddrOfPinnedObject(), events);
commands.Finish();
arrCHandle.Free();
for (int i = 0; i < count; i++)
richTextBox1.Text += "{" + arrA[i] + "} + {" + arrB[i] + "} = {" + arrC[i] + "} \n";
}
}
}
这是程序给我的错误
Cloo.dll中出现未处理的“Cloo.InvalidBinaryComputeException”类型异常
其他信息:检测到OpenCL错误代码:InvalidBinary。
这看起来与随Cloo一起分发的VectorAddTest相同。
你在使用ATI Stream吗? 如果是,这可能是与此相关的问题: http : //sourceforge.net/tracker/?func = detail&aid = 2946105&group_id = 290412 &atid = 1229014
Clootils通过分配控制台来解决这个问题。 检查Clootils / Program.cs以获取实施细节。
更改内核名称 - 我认为名称VectorAdd与某些内容冲突。
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