Question about cudaManagedMemory and zero-copy memory for Jetson AGX

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
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Some simple but important questions about cudaManagedMemory and zero-copy memory:

  1. I know that zero-copy memory is pinned memory, which cannot be swapped out, So, can cudaManagedMemory be swap out on AGX Orin?
  2. Is there any difference between cudaManagedMemory and zero-copy memory on current AGX Orin with IO coherence?
  3. Detailed Discussion of Problem 1: Can I allocate cudaManagedMemory as much as I want? or (What if I allocate excessive cudaManagedMemory?)
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Hi,

You can find detailed info on Jetson’s memory in the document below: cudaManagedMemory is the unified memory.

Thanks.

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