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How does scatter-gather in WDL handle memory limits

Specifically in a LSF usage scenario. Say I have 10 samples that I pipe into GATK via WDL's scatter gather pipeline, and resource limit so that 10 samples cannot be run at the same time. Would WDL try to force the 10 jobs through and therefore gets killed by the job scheduler, or does it run a subset and keep within the memory limit?

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