/// <summary>
/// Constructs a new cuRand wrapper.
/// </summary>
/// <param name="accelerator">The associated Cuda accelerator.</param>
/// <param name="rngType">The cuRand RNG type.</param>
/// <param name="apiVersion">The cuRand API version.</param>
private GPUCuRand(
CudaAccelerator accelerator,
CuRandRngType rngType,
CuRandAPIVersion?apiVersion)
: base(accelerator)
{
API = CuRandAPI.Create(apiVersion);
CuRandException.ThrowIfFailed(
API.CreateGenerator(out IntPtr nativePtr, rngType));
GeneratorPtr = nativePtr;
CuRandException.ThrowIfFailed(
API.GetVersion(out int version));
Version = version;
Stream = accelerator.DefaultStream as CudaStream;
}
/// <summary>
/// Constructs a new cuRand wrapper.
/// </summary>
/// <param name="context">The parent ILGPU context.</param>
/// <param name="rngType">The cuRand RNG type.</param>
/// <param name="apiVersion">The cuRand API version.</param>
private CPUCuRand(
Context context,
CuRandRngType rngType,
CuRandAPIVersion?apiVersion)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
// Note: We currently do not use the context parameter to instantiate the API.
// However, we do pass the context instance to this constructor to ensure
// upward compatibility.
API = CuRandAPI.Create(apiVersion);
CuRandException.ThrowIfFailed(
API.CreateGeneratorHost(out IntPtr nativePtr, rngType));
GeneratorPtr = nativePtr;
CuRandException.ThrowIfFailed(
API.GetVersion(out int version));
Version = version;
}