In fixing #2497, I found that several after statements in the schedule.ccl of IllinoisGRMHD (but probably also GiRaFFE) are ill-defined (or I don't know how the scheduler works). In particular, according to grep, the following groups do not exist in the Einstein Toolkit:

• BSSN_RegisterVars
• lapse_RegisterVars
• Lapse_InitSymBound
• empostid
• lapsepostid
• p2c
• bssn_rhs
• shift_rhs
• compute_B_postrestrict
• mhd_conserv2prims_postrestrict
• outer_boundaries_on_A_mu (probably this one should be IllinoisGRMHD_outer_boundaries_on_A_mu)
• compute_B_and_Bstagger_from_A (probably this one should be IllinoisGRMHD_compute_B_and_Bstagger_from_A)

In addition to this:

• IllinoisGRMHD_compute_B_and_Bstagger_from_A is scheduled in HydroBase_Boundaries, but then IllinoisGRMHD_conserv_to_prims to be after compute_B_and_Bstagger_from_A, but it is scheduled in another group (originally AddToTmunu, but with my fix it is SetTmunu), so I am not sure what’s the use of that after
• IllinoisGRMHD does not define READ/WRITE statements

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2576/after-statements-in-scheduler-in