samskalicky commented on pull request #6292:
URL: https://github.com/apache/incubator-tvm/pull/6292#issuecomment-675623678
Since this is definitely something out of our control (shutdown order,
varies depending on application usage) and we've decided to rely on the process
exiting to free any memory, can we consider clearing the pointers in
`DeviceAPIManager` like:
```
// destructor
~DeviceAPIManager() { std::fill(api_.begin(), api_.end(), nullptr); }
```
And then just make sure that wherever we try and get the `DeviceAPI` that we
check to see if the pointer is null? Then we just skip freeing any memory and
dont have to worry about objects destructed out of order
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