gloo/tcp: better error message on collective mismatch #456
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Summary:
Improve error messages in the TCP transport when a collective mismatch occurs. Right now it throws a mysterious error such as:
This updates the error message to indicate that it's a size mismatch and likely due to a bug in the user code.
Meta:
User post: gloo::EnforceNotMet: [enforce fail at fbcode/gloo/transport/tcp/pair.cc:456] op.preamble.length <= op.nbytes. 194478720 vs 4
Differential Revision: D78377800