• 2021.4
  • 09/27/2021
  • Public Content
Contents

Use graph::reset() to Reset a Canceled Graph

When a graph execution is canceled either because of an unhandled exception or because its task_group_context is canceled explicitly, the graph and its nodes may be left in an indeterminate state. For example, in the code samples shown in Cancel a Graph Explicitly the input 2 may be left in a buffer. But even beyond remnants in the buffers, there are other optimizations performed during the execution of a flow graph that can leave its nodes and edges in an indeterminate state. If you want to re-execute or restart a graph, you first need to reset the graph:
try { g.wait_for_all(); } catch ( int j ) { cout << "Caught " << j << "\n"; // do something to fix the problem g.reset(); f1.try_put(1); f1.try_put(2); g.wait_for_all(); }

Product and Performance Information

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Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.