/// <summary>
/// Wait on a memory location<para/>
/// Enqueues a synchronization of the stream on the given memory location. Work
/// ordered after the operation will block until the given condition on the
/// memory is satisfied. By default, the condition is to wait for (int32_t)(*addr - value) >= 0, a cyclic greater-or-equal.
/// <para/>
/// Other condition types can be specified via \p flags.
/// <para/>
/// If the memory was registered via ::cuMemHostRegister(), the device pointer
/// should be obtained with::cuMemHostGetDevicePointer(). This function cannot
/// be used with managed memory(::cuMemAllocManaged).
/// <para/>
/// Support for this can be queried with ::cuDeviceGetAttribute() and
/// ::CU_DEVICE_ATTRIBUTE_CAN_USE_STREAM_MEM_OPS. The requirements are
/// compute capability 7.0 or greater, and on Windows, that the device be in
/// TCC mode.
/// </summary>
/// <param name="addr">The memory location to wait on.</param>
/// <param name="value">The value to compare with the memory location.</param>
/// <param name="flags">See::CUstreamWaitValue_flags.</param>
public void WaitValue(CUdeviceptr addr, ulong value, CUstreamWaitValue_flags flags)
{
CUResult res = DriverAPINativeMethods.Events.cuStreamWaitValue64(_stream, addr, value, flags);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "cuStreamWaitValue64", res));
if (res != CUResult.Success)
{
throw new CudaException(res);
}
}
public static extern CUResult cuStreamWaitValue32(CUstream stream, CUdeviceptr addr, uint value, CUstreamWaitValue_flags flags);