#include <taskflow/cuda/cuda_stream.hpp>

template<typename Creator, typename Deleter>

tf::cudaStreamBase class

template<typename Creator, typename Deleter>

using tf::cudaStreamBase<Creator, Deleter>::base_type = std::unique_ptr<std::remove_pointer_t<cudaStream_t>, Deleter>

base type for the underlying unique pointer

This alias provides a shorthand for the underlying std::unique_ptr type that manages CUDA stream resources with an associated deleter.

template<typename Creator, typename Deleter> template<typename... ArgsT>

tf::cudaStreamBase<Creator, Deleter>::cudaStreamBase(ArgsT && ... args) explicit

constructs a cudaStream object by passing the given arguments to the stream creator

Constructs a cudaStream object by passing the given arguments to the stream creator

template<typename Creator, typename Deleter>

cudaStreamBase& tf::cudaStreamBase<Creator, Deleter>::synchronize()

synchronizes the associated stream

Equivalently calling cudaStreamSynchronize to block until this stream has completed all operations.

template<typename Creator, typename Deleter>

void tf::cudaStreamBase<Creator, Deleter>::begin_capture(cudaStreamCaptureMode m = cudaStreamCaptureModeGlobal) const

begins graph capturing on the stream

When a stream is in capture mode, all operations pushed into the stream will not be executed, but will instead be captured into a graph, which will be returned via cudaStream::end_capture.

A thread's mode can be one of the following:

• cudaStreamCaptureModeGlobal: This is the default mode. If the local thread has an ongoing capture sequence that was not initiated with cudaStreamCaptureModeRelaxed at cuStreamBeginCapture, or if any other thread has a concurrent capture sequence initiated with cudaStreamCaptureModeGlobal, this thread is prohibited from potentially unsafe API calls.
• cudaStreamCaptureModeThreadLocal: If the local thread has an ongoing capture sequence not initiated with cudaStreamCaptureModeRelaxed, it is prohibited from potentially unsafe API calls. Concurrent capture sequences in other threads are ignored.
• cudaStreamCaptureModeRelaxed: The local thread is not prohibited from potentially unsafe API calls. Note that the thread is still prohibited from API calls which necessarily conflict with stream capture, for example, attempting cudaEventQuery on an event that was last recorded inside a capture sequence.

template<typename Creator, typename Deleter>

cudaGraph_t tf::cudaStreamBase<Creator, Deleter>::end_capture() const

ends graph capturing on the stream

Equivalently calling cudaStreamEndCapture to end capture on stream and returning the captured graph. Capture must have been initiated on stream via a call to cudaStream::begin_capture. If capture was invalidated, due to a violation of the rules of stream capture, then a NULL graph will be returned.

template<typename Creator, typename Deleter>

void tf::cudaStreamBase<Creator, Deleter>::record(cudaEvent_t event) const

records an event on the stream

Equivalently calling cudaEventRecord to record an event on this stream, both of which must be on the same CUDA context.

template<typename Creator, typename Deleter>

void tf::cudaStreamBase<Creator, Deleter>::wait(cudaEvent_t event) const

waits on an event

Equivalently calling cudaStreamWaitEvent to make all future work submitted to stream wait for all work captured in event.

template<typename Creator, typename Deleter> template<typename C, typename D>

cudaStreamBase& tf::cudaStreamBase<Creator, Deleter>::run(const cudaGraphExecBase<C, D>& exec)

runs the given executable CUDA graph

template<typename Creator, typename Deleter>

cudaStreamBase& tf::cudaStreamBase<Creator, Deleter>::run(cudaGraphExec_t exec)

runs the given executable CUDA graph