Daniel Arndt

Retest this please.

Retest this please.

@dalg24 ping

> I don't think we should have a non-const reference version of get_property in the first place. I don't think there is any reason for this thing to not be...

Regarding the name, I'm not sure if people would find it intuitive to understand that this is a space they can access from the host and the device (which is...

On `Intel GPUs`, I see no migration overhead for `host->device` but only for `device->host`, i.e., the loop time is constant on the device and the first access on the host...

I like `Universal` but would try to avoid `Local` and `Global` so maybe `UniversalMovingMemorySpace` and `UniversalPinnedMemorySpace`?

> The unit test is now based on clock cycles rather than on wall clock time which eliminated the need for warmup runs and thus large memory chunks on AMD...

Also, the test fails for HIP in the CI with something like ``` 4: [ RUN ] hip_managed.page_migration 4: Page size as reported by os: 4096 bytes 4: Allocating 100...

It seems there are a lot of unrelated commits in the commit history. Can you please rebase on top of `develop`?