Pass an extra argument to the function returning the particle's softening. Removed the field from the gpart themselves.

testPotentialPair now verifies that the potential is correctly computed for the P-M interaction up to 3rd order.

testPotentialPair now verifies that the potential is correctly computed for the P-M interaction up to 3rd order.

Print more information about multipoles and cells when an undrifted multipole is encountered in the MM task.

Separate the time-step information for hydro and gravity tasks into two different set of variables for each cell.

All gpart now find all of their interactions following correct boundary condition check in runner_do_grav_long_range()

All-reduce all the top-level multipoles after a rebuild() to make sure we have all information in hands to construct the tasks.

Fixed the gravity bugs reported in #363. Need to find a good rebuild criterion for gravity-only runs.

Fix to #363. Drifting decision needs to use the same multipole information as the actual tree walk. Also fix some gravity_cache padding values.

Force compiler to report shadowed variables. Removed all shadowed variables. Added the function scheduler_activate_send() to simplify the unskipping of MPI sends.