marin-ma commented on issue #11524: URL: https://github.com/apache/incubator-gluten/issues/11524#issuecomment-3839965714
@jinchengchenghh Thanks for your explanation. I'm currently working on this in https://github.com/apache/incubator-gluten/pull/11543, and I found that the gpu hash shuffle writer outputs different column data for timestamp and bool type. To support mixed scheduling, the shuffle reader and writer can be scheduled to different clusters. Say if the mappers stage is on gpu cluster but the reducer stage is on cpu cluster, the cpu reader cannot correctly read the data output from gpu writer. To support this we may also need to have both cpu and gpu shuffle writer output the same format in the shuffle write output. This will introduce some data conversion overhead in gpu shuffle reader for boolean and timestamp type when writer and reader are both gpu. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
