Hello all,
when using the AHFinderDirect thorn in a simulation of a relativistic wind past a TOV neutron star, i get the following error message:
*INFO (AHFinderDirect): proc 0: searching for horizon 1/1* *[1mWARNING level 0 in thorn AHFinderDirect processor 0 host permeability.daa.uv.es* * (line 78 of /Users/vass/programs/Cactus/arrangements/EinsteinAnalysis/AHFinderDirect/src/jtutil/error_exit.cc): * * ->[0m ***** row_sparse_Jacobian__UMFPACK::solve_linear_system():* * error return status=1 from umfpack_numeric() routine* * * is that an indication that umfpack is not installed correctly (i was never prompted to install it manually and the compilation of the Einstein toolkit [Maxwell release] went on smoothly without any errors), or rather that something is wrong trying to find the horizon? (there should be an horizon, because the lapse goes to 0 fairly quickly, after which the simulation eventually crashes)
thanks for your help,
best wishes,
Vassili