Alea GPU for loop cannot get field

Question

I am just starting with ALEA and I am curious how you can access other types and references inside a given gpu parallel.for. when i do the following i get a runtime error that states "Cannot get field random. Possible reasons: 1) Static field is not supported.2) The field type is not supported. 3) In closure class, the field doesn't have [GpuParam] attribute."

This error makes sense but I am not sure what the correct implementation would be

    [GpuManaged]
    public void InitPoints()
    {
        var gp = Gpu.Default;
        gp.For(1, (10), (i) =>
        {
            int pointStart = random.Next(totalPoints) + 1;
            Pt point = new Pt(pointStart, ptAt[i]);
            point.Process();
        });
     }

Answer 1

You try to call the System.Random.Next. This is .NET library code and cannot be compiled to GPU. There is no MSIL behind that function that could be accessed and compiled to run on the GPU. Also the System.Random.Next is a random number generator implemented for serial applications. You should use the parallel random number generators provided in cuRand, which are also exposed in Alea GPU.