[.net] [solved] c# maximal array size

There is no explicit memory limit except available memory and some upper bounds by the CLR GC. I'm not sure what is causing you to have that exception.

Thanks for the reply, though it did not help much^^.

I continued looking for a solution and found the problem:

I used the array as below, which resulted in the exception:
float[,,] r = new float[300,30,300]

The following code works now, I just needed a jagged array:

int w = 300;
int h = 30;
int d = 300;

raster[][][] = new float[w][][];
for (int i = 0; i < w; i++)
{
raster = new float[h][];
for (int j = 0; j < h; j++)
{
raster[j] = new float[d];
for (int k = 0; k < d; k++)
{
raster[j][k] = testDVM.Testen(new Vector3(i, j, k) * cSize + bbox.pMinima, true)._Dist;
}
}
}

I'm guessing that the reason is because it didn't have 330*30*300*8=22.66MB contiguously free on the CLR's heap. Using a jagged array, it allocated several smaller arrays, which could fit in because they didn't have to be right next to eachother.

Thanks Nagromo, now I understand why it did not work. :)

I will mark the thread as closed now.