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Note on diffuse response calculation: gtdiffrsp is called two times in succession. The first time with IRF P7_V2_DIFFUSE and evclass==3, followed by IRF P7_32_dataclean and evclass==4. The resulting FT1 file has four columns of diffuse response, two columns (galactic and extragalactic response) for each of the two IRFs.
Timing
- The most time-consuming step in P116-FT1 is the 'mergeClump' step wherein the diffuse response is calculated (twice). The CPU time required for this step, after ~2300 jobs have completed appears in the following plot:
Thus, depending on the run (bimodal distribution) and the speed of the batch machine, the jobs are finishing up after anywhere from 2 hours to 11 hours, with the most probable being about 5 hours.
With 1000 cores, one might then estimate 60 hours to complete the entire project.