[Defect]: Random crash when opening file

[tomk-amd]

This occurs (rarely) on the dev branch.

Open a file (in this case rocpd-transpose.db), application crashes. This is rare, I have seen it ~3 times so far over the span of about a month. Opening same file again on next run will typically not result in a crash.

It looks like there is something that goes wrong when assigning a node to a processor when building the topology. Unfortunately all relevant vars are out of scope by the time the assert is raised.

[tomk-amd]

It looks like m_nodes is empty when this happens (race condition somewhere?)

for (auto* node : m_nodes)
never gets a chance to run to set proc to nullptr