Handle empty hostname in trace

argonne-lcf / THAPI

A tracing infrastructure for heterogeneous computing applications.

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Closed TApplencourt closed 2 months ago

TApplencourt commented 2 months ago

When traced-ranks is used, some hostname may have no trace. It was tripping babeltrace_thapi.

Change:

babeltrace_thapi just warn if the trace is empty (will still raise if no metadata)
xprof doesn't assume that the master node has a metadata.yaml; just find the first one available.

Thanks @khossain4337 for the bug report.