Hi,

I am running the latest release of the Einstein Toolkit with

Cactus::presync_mode = "mixed-error". When I add the thorn

CarpetMask, the system returns an error: CarpetMask wants

sf_info from SphericalSurface, which is not available.

Looking at the scheduler, I can see why this is happening

(relevant section):

GROUP MaskBase_SetupMask: Set up the weight function
GROUP MaskBase_SetupMaskAll: Set up the weight function
CarpetReduce::MaskBase_AllocateMask: [global] Allocate the weight function
CarpetReduce::MaskBase_InitMask: [global] [loop-local] Initialise the weight function
GROUP SetupIMaskInternal: Set up the integer weight function (schedule other routines in here)
CarpetReduce::CoordBase_SetupMask: [global] [loop-local] Set up the outer boundaries of the weight function
CarpetReduce::CarpetMaskSetup: [global] [loop-singlemap] Set up the weight function for the restriction regions
GROUP SetupIMask: Set up the integer weight function (schedule other routines in here)
CarpetMask::CarpetExcludedSetup: [global] [loop-local] Set up the weight function for the excluded regions
CarpetMask::CarpetSurfaceSetup: [global] [loop-local] Set up the weight function for the excluded spherical surfaces
CarpetReduce::MaskBase_SetMask: [global] [loop-local] Set the weight function
GROUP SetupMask: Set up the real weight function (schedule other routines in here)
CarpetReduce::MaskBase_TestMask: [global] Test the weight function
SphericalSurface::SphericalSurface_Set: [global] Set surface radii to be used for initial setup in other thorns
GROUP SphericalSurface_HasBeenSet: Set the spherical surfaces before this group, and use it afterwards
SphericalSurface::SphericalSurface_CheckState: [global] Test the state of the spherical surfaces

As you see, CarpetMask is scheduled before SphericalSurface_Set,

which is what sets sf_info. This is in the BASEGRID bin.

Since I haven't touched neither CarpetMask nor SphericalSurface, I

would think this is a bug, but I maybe I am doing something wrong

(I've never used presync_mode before).

I also take the chance to point out two tickets Pedro Espino and I

opened but received no attention:

https://bitbucket.org/einsteintoolkit/tickets/issues/2487/_evolution_method-leanbssnmol-in-lean-does

https://bitbucket.org/einsteintoolkit/tickets/issues/2484/lack-of-convergence-of-neutron-star

Best,
Gabriele