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<span class="m-breadcrumb"><a href="Releases.html">Release Notes</a> »</span>
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Release 3.4.0 (2022/05/23)
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<h3>Contents</h3>
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<li><a href="#release-3-4-0_download">Download</a></li>
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<li><a href="#release-3-4-0_system_requirements">System Requirements</a></li>
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<li><a href="#release-3-4-0_summary">Release Summary</a></li>
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<a href="#release-3-4-0_new_features">New Features</a>
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<li><a href="#release-3-4-0_taskflow_core">Taskflow Core</a></li>
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<li><a href="#release-3-4-0_cudaflow">cudaFlow</a></li>
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<li><a href="#release-3-4-0_syclflow">syclFlow</a></li>
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<li><a href="#release-3-4-0_utilities">Utilities</a></li>
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</li>
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<li><a href="#release-3-4-0_bug_fixes">Bug Fixes</a></li>
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<li><a href="#release-3-4-0_breaking_changes">Breaking Changes</a></li>
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<li><a href="#release-3-4-0_documentation">Documentation</a></li>
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<li><a href="#release-3-4-0_miscellaneous_items">Miscellaneous Items</a></li>
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<p>Taskflow 3.4.0 is the 5th release in the 3.x line! This release includes several new changes, such as pipeline parallelism, deadlock-free execution methods, documentation, examples, and unit tests.</p><section id="release-3-4-0_download"><h2><a href="#release-3-4-0_download">Download</a></h2><p>Taskflow 3.4.0 can be downloaded from <a href="https://github.com/taskflow/taskflow/releases/tag/v3.4.0">here</a>.</p></section><section id="release-3-4-0_system_requirements"><h2><a href="#release-3-4-0_system_requirements">System Requirements</a></h2><p>To use Taskflow v3.4.0, you need a compiler that supports C++17:</p><ul><li>GNU C++ Compiler at least v8.4 with -std=c++17</li><li>Clang C++ Compiler at least v6.0 with -std=c++17</li><li>Microsoft Visual Studio at least v19.27 with /std:c++17</li><li>AppleClang Xcode Version at least v12.0 with -std=c++17</li><li>Nvidia CUDA Toolkit and Compiler (nvcc) at least v11.1 with -std=c++17</li><li>Intel C++ Compiler at least v19.0.1 with -std=c++17</li><li>Intel DPC++ Clang Compiler at least v13.0.0 with -std=c++17 and SYCL20</li></ul><p>Taskflow works on Linux, Windows, and Mac OS X.</p></section><section id="release-3-4-0_summary"><h2><a href="#release-3-4-0_summary">Release Summary</a></h2><p>This release enhances our task-parallel pipeline programming model and executor methods, supplied with several new examples and unit tests.</p></section><section id="release-3-4-0_new_features"><h2><a href="#release-3-4-0_new_features">New Features</a></h2><section id="release-3-4-0_taskflow_core"><h3><a href="#release-3-4-0_taskflow_core">Taskflow Core</a></h3><ul><li>Improved the pipeline performance using vertical stack optimization</li><li>Added <a href="classtf_1_1ScalablePipeline.html" class="m-doc">tf::<wbr />ScalablePipeline</a> to allow programming variable lengths of pipes</li><li>Added tf::Runtime::run_and_wait to allow spawning a subflow</li><li>Added tf::Executor::run_and_wait to allow running taskflows from a worker</li><li>Added an example of attaching data to a task (examples/attach_data.cpp)</li><li>Added an example of text processing pipeline (examples/parallel_text_pipeline.cpp)</li><li>Added an example of graph processing pipeline (examples/parallel_graph_pipeline.cpp)</li><li>Added an example of taskflow processing pipeline (examples/parallel_taskflow_pipeline.cpp)</li><li>Added an example of running a task graph from a worker (examples/run_and_wait.cpp)</li></ul></section><section id="release-3-4-0_cudaflow"><h3><a href="#release-3-4-0_cudaflow">cudaFlow</a></h3><ul><li>Added <a href="classtf_1_1cudaStream.html" class="m-doc">tf::<wbr />cudaStream</a> as a move-only, RAII-styled wrapper over a native CUDA stream</li><li>Added <a href="classtf_1_1cudaEvent.html" class="m-doc">tf::<wbr />cudaEvent</a> as a move-only, RAII-styled wrapper over a native CUDA event</li></ul></section><section id="release-3-4-0_syclflow"><h3><a href="#release-3-4-0_syclflow">syclFlow</a></h3><p>There is no update on syclFlow in this release.</p></section><section id="release-3-4-0_utilities"><h3><a href="#release-3-4-0_utilities">Utilities</a></h3><ul><li>Removed serializer to improve compilation speed</li></ul></section></section><section id="release-3-4-0_bug_fixes"><h2><a href="#release-3-4-0_bug_fixes">Bug Fixes</a></h2><ul><li>Fixed the compilation error due to non-portable include of <code>immintrin.h</code> (<a href="https://github.com/taskflow/taskflow/issues/371">#371</a>)</li><li>Fixed the compilation error due to using old version of doctest (<a href="https://github.com/taskflow/taskflow/issues/372">#372</a>)</li><li>Fixed the infinite loop bug due to unexpected share states in pipeline (<a href="https://github.com/taskflow/taskflow/issues/402">#402</a>)</li></ul><p>If you encounter any potential bugs, please submit an issue at <a href="https://github.com/taskflow/taskflow/issues">issue tracker</a>.</p></section><section id="release-3-4-0_breaking_changes"><h2><a href="#release-3-4-0_breaking_changes">Breaking Changes</a></h2><ul><li>Replaced tf::Runtime::run with tf::Runtime::run_and_wait to comply with tf::Executor::run_and_wait</li></ul></section><section id="release-3-4-0_deprecated_items"><h2><a href="#release-3-4-0_deprecated_items">Deprecated and Removed Items</a></h2><p>There are no deprecated items in this release.</p></section><section id="release-3-4-0_documentation"><h2><a href="#release-3-4-0_documentation">Documentation</a></h2><ul><li>Revised <a href="ExecuteTaskflow.html" class="m-doc">Executor</a><ul><li>Added <a href="ExecuteTaskflow.html#ExecuteATaskflowFromAnInternalWorker" class="m-doc">Execute a Taskflow from an Internal Worker</a></li></ul></li><li>Revised <a href="CUDASTDExecutionPolicy.html" class="m-doc">Execution Policy</a></li><li>Revised <a href="TaskParallelPipeline.html" class="m-doc">Task-parallel Pipeline</a><ul><li>Added <a href="TaskParallelPipeline.html#TaskParallelPipelineLearnMore" class="m-doc">Learn More about Taskflow Pipeline</a></li></ul></li><li>Revised <a href="Examples.html" class="m-doc">Learning from Examples</a><ul><li>Added <a href="TextProcessingPipeline.html" class="m-doc">Text Processing Pipeline</a></li><li>Added <a href="GraphProcessingPipeline.html" class="m-doc">Graph Processing Pipeline</a></li><li>Added <a href="TaskflowProcessingPipeline.html" class="m-doc">Taskflow Processing Pipeline</a></li></ul></li><li>Added <a href="TaskParallelScalablePipeline.html" class="m-doc">Task-parallel Scalable Pipeline</a></li></ul></section><section id="release-3-4-0_miscellaneous_items"><h2><a href="#release-3-4-0_miscellaneous_items">Miscellaneous Items</a></h2><p>We have published Taskflow in the following venues:</p><ul><li>Dian-Lun Lin and Tsung-Wei Huang, "<a href="https://ieeexplore.ieee.org/document/9664223">Accelerating Large Sparse Neural Network Inference using GPU Task Graph Parallelism</a>," <em>IEEE Transactions on Parallel and Distributed Systems (TPDS)</em>, 2022</li><li>Cheng-Hsiang Chiu and Tsung-Wei Huang, "<a href="https://doi.org/10.1145/3502181.3533714">Composing Pipeline Parallelism using Control Taskflow Graph</a>," <em>ACM International Symposium on High-Performance Parallel and Distributed Computing (HPDC)</em>, Minneapolis, Minnesota, 2022</li><li>Cheng-Hsiang Chiu and Tsung-Wei Huang, "<a href="https://tsung-wei-huang.github.io/papers/dac2022.pdf">Efficient Timing Propagation with Simultaneous Structural and Pipeline Parallelisms</a>," <em>ACM/IEEE Design Automation Conference (DAC)</em>, San Francisco, CA, 2022</li></ul><p>Please do not hesitate to contact <a href="https://tsung-wei-huang.github.io/">Dr. Tsung-Wei Huang</a> if you intend to collaborate with us on using Taskflow in your scientific computing projects.</p></section>
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