Hello all,
1c) McLachlan testsuites fail on the (potentially) three largest machines: ranger, kraken and bluedrop, but pass everywhere else. 1d) WeylScal4/teukolsky fails. The origin of this is known and simply a bug in the testsuite setup itself. Either we find time to correct this (is Roland still on it?), or we drop the testsuite.
I am, it goes away if I increase the number of ghost zones (though I don't understand why). I'll send a parameter file to Ian to test. Without increasing the ghost zones the error persists even when evolving Minkowski spacetime and with much larger grids.
Yours, Roland