What is the problem the feature request solves?
We currently only enable unified memory manager for Comet if off-heap mode is enabled. It causes some memory issues like #996, #949, etc.
Re-thinking about this, I think a better approach is to always use unified memory management for Comet, i.e. off-heap mode must be enabled for Comet. It could simplify memory management in Comet. It can give a more explicit signal to users that off-heap memory is used for Comet native execution that should give users a more clear picture about how Spark/Comet memory is used (so they don't need to guess).
Describe the potential solution
No response
Additional context
No response
What is the problem the feature request solves?
We currently only enable unified memory manager for Comet if off-heap mode is enabled. It causes some memory issues like #996, #949, etc.
Re-thinking about this, I think a better approach is to always use unified memory management for Comet, i.e. off-heap mode must be enabled for Comet. It could simplify memory management in Comet. It can give a more explicit signal to users that off-heap memory is used for Comet native execution that should give users a more clear picture about how Spark/Comet memory is used (so they don't need to guess).
Describe the potential solution
No response
Additional context
No response