Initializing AMReX (25.05-28-g5181c2798f82)... Initializing CUDA... CUDA initialized with 1 device. AMReX (25.05-28-g5181c2798f82) initialized Starting run at 07:55:23 UTC on 2025-05-30. Successfully read inputs file ... Castro git describe: 25.05-3-g91c85de54 AMReX git describe: 25.05-28-g5181c2798 Microphysics git describe: 25.05-7-g7a7cfa62 reading extern runtime parameters ... 13 Species: He4 C12 O16 Ne20 Mg24 Si28 S32 Ar36 Ca40 Ti44 Cr48 Fe52 Ni56 Successfully read inputs file ... Creating primary with CO core with mass fractions C = 0.4and O = 0.6 and a He shell of solar mass =0. Creating secondary with CO core with mass fractions C = 0.4and O = 0.6 and a He shell of solar mass =0. Generated initial model for primary WD of mass 0.9 solar masses, central density 1.574e+07 g cm**-3, and radius 6.747e+08 cm. Generated initial model for secondary WD of mass 0.9 solar masses, central density 1.574e+07 g cm**-3, and radius 6.747e+08 cm. Generated binary orbit of distance 1.781e+09 cm = 1.190e-04 AU. The primary orbits the center of mass at distance -8.903e+08 cm = -5.951e-05 AU. The secondary orbits the center of mass at distance 8.903e+08 cm = 5.951e-05 AU. The initial orbital period is 30.543687 s. The initial orbital speed of the primary is -1.831e+08 cm/s. The initial orbital speed of the secondary is 1.831e+08 cm/s. Castro::numpts_1d at level 0 is 174 Setting the gravity type to PoissonGrav Initializing the data at level 0 Done initializing the level 0 data ...estimated hydro-limited timestep at level 0: 0.05426072637 ...hydro-limited CFL timestep constrained at (i,j,k) = (29,63,95) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.05426072637 grid_places() time: 0.003102895 new finest: 0 Now regridding at level lbase = 0 grid_places() time: 0.001674248 new finest: 0 STEP = 0 TIME = 0 : REGRID with lbase = 0 Gravity::fill_multipole_BCs() time = 0.008740589 Gravity::multilevel_solve_for_new_phi() time = 0.048804633 INITIAL GRIDS Level 0 27 grids 884736 cells 100 % of domain smallest grid: 32 x 32 x 32 biggest grid: 32 x 32 x 32 PLOTFILE: file = wdmerger_3D_plt00000 Write plotfile time = 0.151477864 seconds ...estimated hydro-limited timestep at level 0: 0.05426072637 ...hydro-limited CFL timestep constrained at (i,j,k) = (29,63,95) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.05426072637 [Level 0 step 1] ADVANCE at time 0 with dt = 0.005426072637  Beginning subcycle 1 starting at time 0 with dt = 0.005426072637 Estimated number of subcycles remaining: 1 Castro::construct_old_gravity() time = 0.003641839 on level 0 Castro::do_old_sources() time = 0.007838783 on level 0 ... Entering construct_ctu_hydro_source() on level 0 ... Leaving construct_ctu_hydro_source() on level 0 Castro::construct_ctu_hydro_source() time = 0.16534951 on level 0 ... new-time composite Poisson gravity solve from level 0 to level 0 Gravity::fill_multipole_BCs() time = 0.006429962 Gravity::multilevel_solve_for_new_phi() time = 0.037342425 Castro::construct_new_gravity() time = 0.040849502 on level 0 Castro::do_new_sources() time = 0.006714849 on level 0  Subcycle completed Subcycling complete Zones advanced per microsecond at this level: 3.596355909 [Level 0 step 1] Advanced 884736 cells Updating the rotational period from 30.54368673 s to 30.46017574 s. [STEP 1] Coarse TimeStep time: 0.255890274 [STEP 1] FAB kilobyte spread across MPI nodes: [1714682 ... 1714682] STEP = 1 TIME = 0.005426072637 DT = 0.005426072637 ...estimated hydro-limited timestep at level 0: 0.05461684804 ...hydro-limited CFL timestep constrained at (i,j,k) = (0,29,94) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.05461684804 Castro::compute_new_dt : limiting dt at level 0 ... new dt computed: 0.05461684804 ... but limiting to: 0.0059686799 = 1.1 * 0.005426072637 Now regridding at level lbase = 0 grid_places() time: 0.002106631 new finest: 1 Castro::numpts_1d at level 1 is 340 Gravity::fill_multipole_BCs() time = 0.007151566 Gravity::multilevel_solve_for_new_phi() time = 0.05376866 STEP = 1 TIME = 0.005426072637 : REGRID with lbase = 0 Level 1 2 grids 65536 cells 0.9259259259 % of domain smallest grid: 32 x 32 x 32 biggest grid: 32 x 32 x 32 ...estimated hydro-limited timestep at level 0: 0.05461684804 ...hydro-limited CFL timestep constrained at (i,j,k) = (0,29,94) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.05461684804 ...estimated hydro-limited timestep at level 1: 2.526135647e-09 ...hydro-limited CFL timestep constrained at (i,j,k) = (104,88,99) Castro::estTimeStep (hydro-limited) at level 1: estdt = 2.526135647e-09 [Level 0 step 2] ADVANCE at time 0.005426072637 with dt = 2.526135647e-09  Beginning subcycle 1 starting at time 0.005426072637 with dt = 2.526135647e-09 Estimated number of subcycles remaining: 1 Castro::construct_old_gravity() time = 0.003335384 on level 0 Castro::do_old_sources() time = 0.009831071 on level 0 ... Entering construct_ctu_hydro_source() on level 0 ... Leaving construct_ctu_hydro_source() on level 0 Castro::construct_ctu_hydro_source() time = 0.171215484 on level 0 Castro::construct_old_gravity() time = 0.000370844 on level 1 Castro::do_old_sources() time = 0.00232703 on level 1 ... Entering construct_ctu_hydro_source() on level 1 ... Leaving construct_ctu_hydro_source() on level 1 Castro::construct_ctu_hydro_source() time = 0.008050705 on level 1 Castro::reflux() at level 0 : time = 0.016582245 ... new-time composite Poisson gravity solve from level 0 to level 1 Gravity::fill_multipole_BCs() time = 0.006932731 Gravity::multilevel_solve_for_new_phi() time = 0.037149467 Castro::construct_new_gravity() time = 0.040676445 on level 0 Castro::do_new_sources() time = 0.005652406 on level 0 Castro::construct_new_gravity() time = 0.00039156 on level 1 Castro::do_new_sources() time = 0.001759689 on level 1  Subcycle completed Subcycling complete Zones advanced per microsecond from level 0 to level 1: 3.222663258 [Level 0 step 2] Advanced 884736 cells [Level 1 step 2] ADVANCE at time 0.005426072637 with dt = 2.526135647e-09 Advance at this level has already been completed. [Level 1 step 2] Advanced 65536 cells Updating the rotational period from 30.46017574 s to 30.52759479 s. [STEP 2] Coarse TimeStep time: 0.372813152 [STEP 2] FAB kilobyte spread across MPI nodes: [2288229 ... 2288229] STEP = 2 TIME = 0.005426075163 DT = 2.526135647e-09 ...estimated hydro-limited timestep at level 0: 0.0008044208529 ...hydro-limited CFL timestep constrained at (i,j,k) = (37,49,42) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.0008044208529 ...estimated hydro-limited timestep at level 1: 6.697001619e-07 ...hydro-limited CFL timestep constrained at (i,j,k) = (121,90,90) Castro::estTimeStep (hydro-limited) at level 1: estdt = 6.697001619e-07 Castro::compute_new_dt : limiting dt at level 0 ... new dt computed: 0.0008044208529 ... but limiting to: 2.778749212e-09 = 1.1 * 2.526135647e-09 Castro::compute_new_dt : limiting dt at level 1 ... new dt computed: 6.697001619e-07 ... but limiting to: 2.778749212e-09 = 1.1 * 2.526135647e-09 Now regridding at level lbase = 0 grid_places() time: 0.002023959 new finest: 1 Castro::numpts_1d at level 1 is 340 Gravity::fill_multipole_BCs() time = 0.006865554 Gravity::multilevel_solve_for_new_phi() time = 0.014373112 STEP = 2 TIME = 0.005426075163 : REGRID with lbase = 0 Level 1 2 grids 65536 cells 0.9259259259 % of domain smallest grid: 32 x 32 x 32 biggest grid: 32 x 32 x 32 ...estimated hydro-limited timestep at level 0: 0.0008044208529 ...hydro-limited CFL timestep constrained at (i,j,k) = (37,49,42) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.0008044208529 ...estimated hydro-limited timestep at level 1: 6.697001619e-07 ...hydro-limited CFL timestep constrained at (i,j,k) = (121,90,90) Castro::estTimeStep (hydro-limited) at level 1: estdt = 6.697001619e-07 [Level 0 step 3] ADVANCE at time 0.005426075163 with dt = 2.778749212e-09  Beginning subcycle 1 starting at time 0.005426075163 with dt = 2.778749212e-09 Estimated number of subcycles remaining: 1 Castro::construct_old_gravity() time = 0.003358661 on level 0 Castro::do_old_sources() time = 0.005591497 on level 0 ... Entering construct_ctu_hydro_source() on level 0 ... Leaving construct_ctu_hydro_source() on level 0 Castro::construct_ctu_hydro_source() time = 0.174355838 on level 0 Castro::construct_old_gravity() time = 0.000322619 on level 1 Castro::do_old_sources() time = 0.001900023 on level 1 ... Entering construct_ctu_hydro_source() on level 1 ... Leaving construct_ctu_hydro_source() on level 1 Castro::construct_ctu_hydro_source() time = 0.007246709 on level 1 Castro::reflux() at level 0 : time = 0.015926869 ... new-time composite Poisson gravity solve from level 0 to level 1 Gravity::fill_multipole_BCs() time = 0.006894004 Gravity::multilevel_solve_for_new_phi() time = 0.026241003 Castro::construct_new_gravity() time = 0.029697882 on level 0 Castro::do_new_sources() time = 0.005782828 on level 0 Castro::construct_new_gravity() time = 0.00040456 on level 1 Castro::do_new_sources() time = 0.002452107 on level 1  Subcycle completed Subcycling complete Zones advanced per microsecond from level 0 to level 1: 3.477702229 [Level 0 step 3] Advanced 884736 cells [Level 1 step 3] ADVANCE at time 0.005426075163 with dt = 2.778749212e-09 Advance at this level has already been completed. [Level 1 step 3] Advanced 65536 cells Updating the rotational period from 30.52759479 s to 30.52761298 s. [STEP 3] Coarse TimeStep time: 0.312245987 [STEP 3] FAB kilobyte spread across MPI nodes: [2288229 ... 2288229] STEP = 3 TIME = 0.005426077942 DT = 2.778749212e-09 ...estimated hydro-limited timestep at level 0: 0.000804308035 ...hydro-limited CFL timestep constrained at (i,j,k) = (37,49,42) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.000804308035 ...estimated hydro-limited timestep at level 1: 6.965184638e-07 ...hydro-limited CFL timestep constrained at (i,j,k) = (121,90,90) Castro::estTimeStep (hydro-limited) at level 1: estdt = 6.965184638e-07 Castro::compute_new_dt : limiting dt at level 0 ... new dt computed: 0.000804308035 ... but limiting to: 3.056624133e-09 = 1.1 * 2.778749212e-09 Castro::compute_new_dt : limiting dt at level 1 ... new dt computed: 6.965184638e-07 ... but limiting to: 3.056624133e-09 = 1.1 * 2.778749212e-09 Now regridding at level lbase = 0 grid_places() time: 0.001949722 new finest: 1 Castro::numpts_1d at level 1 is 340 Gravity::fill_multipole_BCs() time = 0.006977186 Gravity::multilevel_solve_for_new_phi() time = 0.014636784 STEP = 3 TIME = 0.005426077942 : REGRID with lbase = 0 Level 1 2 grids 65536 cells 0.9259259259 % of domain smallest grid: 32 x 32 x 32 biggest grid: 32 x 32 x 32 ...estimated hydro-limited timestep at level 0: 0.000804308035 ...hydro-limited CFL timestep constrained at (i,j,k) = (37,49,42) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.000804308035 ...estimated hydro-limited timestep at level 1: 6.965184638e-07 ...hydro-limited CFL timestep constrained at (i,j,k) = (121,90,90) Castro::estTimeStep (hydro-limited) at level 1: estdt = 6.965184638e-07 [Level 0 step 4] ADVANCE at time 0.005426077942 with dt = 3.056624133e-09  Beginning subcycle 1 starting at time 0.005426077942 with dt = 3.056624133e-09 Estimated number of subcycles remaining: 1 Castro::construct_old_gravity() time = 0.003330097 on level 0 Castro::do_old_sources() time = 0.005482301 on level 0 ... Entering construct_ctu_hydro_source() on level 0 ... Leaving construct_ctu_hydro_source() on level 0 Castro::construct_ctu_hydro_source() time = 0.171080908 on level 0 Castro::construct_old_gravity() time = 0.000316394 on level 1 Castro::do_old_sources() time = 0.001889286 on level 1 ... Entering construct_ctu_hydro_source() on level 1 ... Leaving construct_ctu_hydro_source() on level 1 Castro::construct_ctu_hydro_source() time = 0.007895868 on level 1 Castro::reflux() at level 0 : time = 0.015814256 ... new-time composite Poisson gravity solve from level 0 to level 1 Gravity::fill_multipole_BCs() time = 0.006937785 Gravity::multilevel_solve_for_new_phi() time = 0.0264882 Castro::construct_new_gravity() time = 0.029958968 on level 0 Castro::do_new_sources() time = 0.005598423 on level 0 Castro::construct_new_gravity() time = 0.000394083 on level 1 Castro::do_new_sources() time = 0.001700468 on level 1  Subcycle completed Subcycling complete Zones advanced per microsecond from level 0 to level 1: 3.5454726 [Level 0 step 4] Advanced 884736 cells [Level 1 step 4] ADVANCE at time 0.005426077942 with dt = 3.056624133e-09 Advance at this level has already been completed. [Level 1 step 4] Advanced 65536 cells Updating the rotational period from 30.52761298 s to 30.52761297 s. [STEP 4] Coarse TimeStep time: 0.304682561 [STEP 4] FAB kilobyte spread across MPI nodes: [2288229 ... 2288229] STEP = 4 TIME = 0.005426080998 DT = 3.056624133e-09 ...estimated hydro-limited timestep at level 0: 0.0002497928903 ...hydro-limited CFL timestep constrained at (i,j,k) = (57,41,46) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.0002497928903 ...estimated hydro-limited timestep at level 1: 7.255166705e-07 ...hydro-limited CFL timestep constrained at (i,j,k) = (121,90,90) Castro::estTimeStep (hydro-limited) at level 1: estdt = 7.255166705e-07 Castro::compute_new_dt : limiting dt at level 0 ... new dt computed: 0.0002497928903 ... but limiting to: 3.362286546e-09 = 1.1 * 3.056624133e-09 Castro::compute_new_dt : limiting dt at level 1 ... new dt computed: 7.255166705e-07 ... but limiting to: 3.362286546e-09 = 1.1 * 3.056624133e-09 Now regridding at level lbase = 0 grid_places() time: 0.001978174 new finest: 1 Castro::numpts_1d at level 1 is 340 Gravity::fill_multipole_BCs() time = 0.007005859 Gravity::multilevel_solve_for_new_phi() time = 0.01469386 STEP = 4 TIME = 0.005426080998 : REGRID with lbase = 0 Level 1 2 grids 65536 cells 0.9259259259 % of domain smallest grid: 32 x 32 x 32 biggest grid: 32 x 32 x 32 ...estimated hydro-limited timestep at level 0: 0.0002497928903 ...hydro-limited CFL timestep constrained at (i,j,k) = (57,41,46) Castro::estTimeStep (hydro-limited) at level 0: estdt = 0.0002497928903 ...estimated hydro-limited timestep at level 1: 7.255166705e-07 ...hydro-limited CFL timestep constrained at (i,j,k) = (121,90,90) Castro::estTimeStep (hydro-limited) at level 1: estdt = 7.255166705e-07 [Level 0 step 5] ADVANCE at time 0.005426080998 with dt = 3.362286546e-09  Beginning subcycle 1 starting at time 0.005426080998 with dt = 3.362286546e-09 Estimated number of subcycles remaining: 1 Castro::construct_old_gravity() time = 0.003319504 on level 0 Castro::do_old_sources() time = 0.00561922 on level 0 ... Entering construct_ctu_hydro_source() on level 0 ... Leaving construct_ctu_hydro_source() on level 0 Castro::construct_ctu_hydro_source() time = 0.169729365 on level 0 Castro::construct_old_gravity() time = 0.000328874 on level 1 Castro::do_old_sources() time = 0.001766805 on level 1 ... Entering construct_ctu_hydro_source() on level 1 ... Leaving construct_ctu_hydro_source() on level 1 Castro::construct_ctu_hydro_source() time = 0.007930155 on level 1 Castro::reflux() at level 0 : time = 0.015999854 ... new-time composite Poisson gravity solve from level 0 to level 1 Gravity::fill_multipole_BCs() time = 0.006909903 Gravity::multilevel_solve_for_new_phi() time = 0.026609825 Castro::construct_new_gravity() time = 0.030146516 on level 0 Castro::do_new_sources() time = 0.005614302 on level 0 Castro::construct_new_gravity() time = 0.000386605 on level 1 Castro::do_new_sources() time = 0.00243468 on level 1  Subcycle completed Subcycling complete Zones advanced per microsecond from level 0 to level 1: 3.554258243 [Level 0 step 5] Advanced 884736 cells [Level 1 step 5] ADVANCE at time 0.005426080998 with dt = 3.362286546e-09 Advance at this level has already been completed. [Level 1 step 5] Advanced 65536 cells Updating the rotational period from 30.52761297 s to 30.52761296 s. [STEP 5] Coarse TimeStep time: 0.305314845 [STEP 5] FAB kilobyte spread across MPI nodes: [2288229 ... 2288229] STEP = 5 TIME = 0.005426084361 DT = 3.362286546e-09 PLOTFILE: file = wdmerger_3D_plt00005 Write plotfile time = 0.147251969 seconds Ending run at 07:55:27 UTC on 2025-05-30. Run time = 3.167420173 Run time without initialization = 1.698976107 Average number of zones advanced per microsecond: 2.912 Average number of zones advanced per microsecond per rank: 2.912 CPU(0): Heap Space (bytes) used by Coalescing FAB Arena: 9476456448 Unused ParmParse Variables: [TOP]::mg.v(nvals = 1) :: [2] Total GPU global memory (MB): 12049 Free GPU global memory (MB): 1929 [The Arena] max space allocated (MB): 9037 [The Arena] max space used (MB): 2264 [The Managed Arena] max space allocated (MB): 8 [The Managed Arena] max space used (MB): 0 [The Pinned Arena] max space allocated (MB): 8 [The Pinned Arena] max space used (MB): 6 AMReX (25.05-28-g5181c2798f82) finalized