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If the WCT is calculated to be longer than 24 hours, then the minimum number of cores to bring it below 24 hours is used.
Test results
A test run was done with the WairarapNich_HYP01-47_S1244 realisation from Cybershake.
HF calculations were done using a single node taking approximately 8hrs 50mins, and then with 3 nodes, taking 1hr 4mins.
The resulting HF.bin files were determined to be identical.
Further testing showed either conservation or a reduction in the total number of core hours used.