hi, I have cluster that has several nodes and every node has several cores. I'd like to run multi-core algorithm within every map. So I'd like to assure that there will be performed only one map per cluster node. Is there some way, how to assure this? It seems to me that it should be possible by spark.task.cpus as it is described at https://spark.apache.org/docs/latest/configuration.html, but it's not clear to me if the value is total number of CPUs per cluster or CPUs per cluster node?
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