public int CountEquals(ContiguousMemoryBuffer rhs, MemoryBuffer cache)
{
Debug.Assert(Buffer.pointer != 0);
Debug.Assert(rhs.Buffer.pointer != 0);
Debug.Assert(Size == rhs.Size);
bool needToFreeCache = cache.pointer == 0;
if (needToFreeCache)
{
cache.memorySpace = memorySpace;
cache.mathDomain = mathDomain;
cache.size = (uint)Size;
Alloc(cache);
}
// calculate the difference
CuBlasApi.Subtract(cache, Buffer, rhs.Buffer);
// calculate how many non-zeros, overriding cache
CuBlasApi.IsNonZero(cache, cache);
double ret = CubApi.Sum(cache);
// we are counting the zero entries
ret = Size - ret;
if (needToFreeCache)
{
Free(cache);
}
return((int)ret);
}
public double AbsoluteMaximum()
{
Debug.Assert(Buffer.pointer != 0);
return(CubApi.AbsMax(Buffer));
}
public double Sum()
{
Debug.Assert(Buffer.pointer != 0);
return(CubApi.Sum(Buffer));
}
public double Minimum()
{
Debug.Assert(Buffer.pointer != 0);
return(CubApi.Min(Buffer));
}
