10.4 Time Estimates

A screen capture of the completed IRAC AOT is displayed in Figure 10.4.

Figure 10.4: The completed IRAC AOT window.

We calculate the total time to execute this AOR by clicking on ``Calc. Obs. Time'' in the AOT window or via ``Tools/Recompute All Estimates.'' By doing this, we learn that we come in at about 4 hours for this AOR. Note that unlike MIPS, the limit for an IRAC AOR is six hours, so we're fine. Clearly, if we had opted for the larger MIPS map, we have plenty of time left in this AOR to tile over a larger region with IRAC; we don't need to split it into several AORs and link them with constraints. (Although, see footnote above about ``number of instructions.'') Save your AOR(s) early and often. Now would be good.