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RunMat

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© 2026 Dystr · Made withfor the scientific community.

RunMat™ is a registered trademark of Dystr, Inc. MATLAB® is a registered trademark of The MathWorks, Inc. RunMat is not affiliated with, endorsed by, or sponsored by The MathWorks, Inc.

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Builtin Reference
    • adjacency
    • bfsearch
    • conncomp
    • degree
    • dfsearch
    • digraph
    • distances
    • findedge
    • graph
    • indegree
    • neighbors
    • numedges
    • numnodes
    • outdegree
    • predecessors
    • shortestpath
    • successors
    • toposort
    • treelayout

digraph — Create a directed graph object.

digraph creates a directed graph compatibility object with Nodes and Edges tables. It supports edge-list construction with numeric or named nodes, optional weights, optional node names, and dense adjacency matrices.

Syntax

digraph()

GPU memory and residency

No. Directed graph construction and traversal are host metadata/control-flow operations.

Using digraph with coding agents

Open a RunMat example with live inputs, then ask the agent to explain how digraph changes the result.

Run a small digraph example, explain the result, then change one input and compare the output.

Related Graph functions

adjacency · bfsearch · conncomp · degree · dfsearch · distances · findedge · graph · indegree · neighbors · numedges · numnodes · outdegree · predecessors · shortestpath · successors · toposort · treelayout

Open-source implementation

Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how digraph is executed, line by line, in Rust.

  • View the source for digraph in Rust on GitHub
  • Learn how the RunMat runtime works
  • Found a bug? Open an issue with a minimal reproduction.

About RunMat

RunMat is an open-source runtime that executes MATLAB-syntax code blazing on any GPU. It is licensed under the Apache 2.0 license.

  • RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed. Simulations that took hours now take minutes.
  • Start running code in seconds. RunMat runs in the browser, on the desktop, or from the CLI. No license server, no IT ticket.

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On this page
  • Syntax
  • GPU memory and residency
  • Using digraph with coding agents
  • Related Graph functions
  • Open-source implementation
  • About RunMat