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thfroitzheim
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Nov 11, 2025
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The workload in the triple loop of the ATM term is maximally unbalanced:
Currently, OMP scheduling is decided at runtime (
OMP_SCHEDULEenvironment variable). Depending on the compiler and whether the environment variable is set or not,staticscheduling is likely selected (source 1, source 2). Given the unbalanced workload,dynamicscheduling should always be faster here.Instead of having the user figure this out, we now explicitly employ
dynamicscheduling for the ATM term.