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What is the difference between running multiple nodelets standalone or in a manager?

I am confused by the Nodelet Docs regarding the two possibilities to run a nodelet (1.4 Basic Usage). Apparently, one can either

  • launch one nodelet manager and load multiple nodelets into this manager or
  • launch multiple standalone nodelets.

Reading the documentation, I don't understand what the difference is (is it even explained somewhere?).

  1. Is the communication between nodelets still zero-copy, if I load them as standalone nodelets?

  2. What is the difference in any case?

What is the difference between running multiple nodelets standalone or in a manager?

I am confused by the Nodelet Docs regarding the two possibilities to run a nodelet (1.4 Basic Usage). Apparently, one can either

  • launch one nodelet manager and load multiple nodelets into this manager or
  • launch multiple standalone nodelets.

Reading the documentation, I don't understand what the difference is (is it even explained somewhere?).nodelets in different nodes.

  1. Is the communication between nodelets still zero-copy, if I load them as standalone nodelets?

  2. What is the difference in any case?

What is the difference between running multiple nodelets standalone or in a manager?

I am confused by the Nodelet Docs regarding the two possibilities to run a nodelet (1.4 Basic Usage). Apparently, one can either

  • launch one nodelet manager and load multiple nodelets into this manager or
  • launch multiple standalone nodelets in different nodes.

    Is the communication between nodelets still zero-copy, if I load them as standalone nodelets?

What is the difference between Is topic communcation zero-copy if running multiple nodelets standalone or in standalone? (instead of a manager?manager)

I am confused by the Nodelet Docs regarding the two possibilities to run a nodelet (1.4 Basic Usage). Apparently, one can either

  • launch one nodelet manager and load multiple nodelets into this manager or
  • launch multiple standalone nodelets in different nodes.

    Is the communication between nodelets still zero-copy, if I load launch them as standalone nodelets?