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GATK Queue data scheduling


I am very new to GATK. In GATK Queue, what will happen if I set scatterCount value to more than number of cores I have? Let's say, I have 100 nodes/cores and I set scatterCount to 200. Is the data scheduling as in MapReduce? That is, who finishes a job gets a new job from the master? In other words, is there a dynamic scheduling or all the jobs/intervals are assigned at the beginning?


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