When would new tuning be required?

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Jun Liu edited this page Jun 7, 2023 · 1 revision

https://github.com/ROCmSoftwarePlatform/MIOpen/pull/2187#discussion_r1222146648

Perf-db.

If applicability is narrowed, then some records become unusable (harmless junk). Re-tuning is not required unless you want to remove the junk.
If applicability is extended, then the solver is unable to show it's full potential. This is harmless as well. Re-tuning is needed only if we need to unleash the performance for the newly enabled configs ASAP.

Find-db

If applicability is narrowed, then some info become unusable as well (harmless junk), because we check applicability prior using info from find-db. Re-tuning is not required unless you want to remove the junk.
If applicability is extended, then the solver may be unable to show it's full potential if the library runs in HYBRID or DYNAMIC_HYBRID modes, or when used in Immediate Mode.