SPARTA (23 Dec 2017) KOKKOS mode is enabled (../kokkos.cpp:39) using 0 GPU(s) per MPI task using 2 thread(s) per MPI task package kokkos package kokkos reduction parallel/reduce comm classic # flow around a sphere on a uniform grid # particles are created initially and input at boundaries at stream velocity variable x index 10 variable y index 10 variable z index 10 variable n equal 10*$x*$y*$z variable n equal 10*128*$y*$z variable n equal 10*128*80*$z variable n equal 10*128*80*80 variable fnum equal 7.33e+21/v_n seed 12345 dimension 3 global nrho 7.03E18 global fnum ${fnum} global fnum 894775390625000 timestep 1.E-5 global gridcut 0.1 global surfmax 300 boundary o o o create_box -5.0 5.0 -5.0 5.0 -5.0 5.0 Created orthogonal box = (-5 -5 -5) to (5 5 5) create_grid $x $y $z create_grid 128 $y $z create_grid 128 80 $z create_grid 128 80 80 WARNING: Could not acquire nearby ghost cells b/c grid partition is not clumped (../grid.cpp:381) Created 819200 child grid cells parent cells = 1 CPU time = 0.00420146 secs create/ghost percent = 45.669 54.331 balance_grid rcb cell Balance grid migrated 817810 cells CPU time = 0.113721 secs reassign/sort/migrate/ghost percent = 56.511 0.150032 37.5158 5.82321 species ar.species Ar mixture air Ar frac 1.0 mixture air group species mixture air Ar vstream 2500.0 0.0 0.0 temp 300.00 fix in emit/face air all collide vss air ar.vss read_surf data.sphere 602 points 1200 triangles -1 1 xlo xhi -1 1 ylo yhi -1 1 zlo zhi 0.100631 min triangle edge length 0.00439601 min triangle area 1664 = cells with surfs 7464 = total surfs in all grid cells 10 = max surfs in one grid cell 0.80505 = min surf-size/cell-size ratio 0 0 = number of pushed cells 1664 0 = cells overlapping surfs, overlap cells with unmarked corner pts 814972 2564 1664 = cells outside/inside/overlapping surfs 1664 = surf cells with 1,2,etc splits 995.862 995.862 = cell-wise and global flow volume CPU time = 0.0161744 secs read/sort/check/surf2grid/ghost/inout/particle percent = 18.1208 0.551365 12.3116 54.5151 14.5012 11.9752 0.119589 surf_collide 1 diffuse 300.0 1.0 surf_modify all collide 1 create_particles air n 0 Created 7824206 particles CPU time = 0.00702137 secs fix 3 balance 100 1.1 rcb part collide_modify vremax 100 yes #compute 1 grid all all nrho mass u v w #fix 1 ave/grid 10 100 1000 c_1 ave running #dump 1 grid all 1000 tmp_flow.* id xc yc zc f_1 #compute 2 surf all all press ke #fix 2 ave/surf all 10 100 1000 c_2 ave running #dump 2 surf all 1000 tmp_surf.* id f_2 compute g grid all all n compute max reduce max c_g[1] stats_style step cpu np nattempt ncoll nscoll c_max stats 100 # equilibrate flow for 1000 steps # then benchmark for 1000 steps run 1000 WARNING: One or more fix inflow faces oppose streaming velocity (../fix_emit_face.cpp:195) Memory usage per proc in Mbytes: particles (ave,min,max) = 1.6875 1.6875 1.6875 grid (ave,min,max) = 1.66647 1.66647 1.66647 surf (ave,min,max) = 0.0778735 0.0778732 0.077877 total (ave,min,max) = 3.44269 3.44269 3.4427 Step CPU Np Natt Ncoll Nscoll c_max 0 0 7824206 0 0 0 11 100 0.20258602 7821587 3087 2613 922 115 200 0.40088046 7841307 3850 3249 967 130 300 0.57578521 7902884 4134 3570 971 129 400 0.80644205 7986875 4315 3684 985 128 500 0.97973009 8053589 4369 3694 1029 124 600 1.1510448 8087685 4305 3701 911 147 700 1.3259228 8101118 4291 3674 1009 131 800 1.5043106 8106620 4340 3726 961 138 900 1.6735463 8110636 4270 3699 946 130 1000 1.8294766 8111069 4348 3700 993 135 Loop time of 1.82959 on 576 procs for 1000 steps with 8111069 particles Particle moves = 8020614240 (8.02B) Cells touched = 10795400355 (10.8B) Particle comms = 201465873 (201M) Boundary collides = 0 (0K) Boundary exits = 22488336 (22.5M) SurfColl checks = 153381916 (153M) SurfColl occurs = 966017 (0.966M) Surf reactions = 0 (0K) Collide attempts = 118064670 (118M) Collide occurs = 89880372 (89.9M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 7.61081e+06 Particle-moves/step: 8.02061e+06 Cell-touches/particle/step: 1.34596 Particle comm iterations/step: 1 Particle fraction communicated: 0.0251185 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00280382 Surface-checks/particle/step: 0.0191235 Surface-collisions/particle/step: 0.000120442 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0147202 Collisions/particle/step: 0.0112062 Reactions/particle/step: 0 Move time (%) = 0.955864 (52.2447) Coll time (%) = 0.0555723 (3.03741) Sort time (%) = 0.365733 (19.9899) Comm time (%) = 0.255981 (13.9912) Modfy time (%) = 0.177253 (9.68809) Outpt time (%) = 0.0183937 (1.00535) Other time (%) = 0.000794402 (0.0434196) Particles: 14081.7 ave 14970 max 13578 min Histogram: 7 36 123 220 114 52 16 5 1 2 Cells: 1422.22 ave 3062 max 812 min Histogram: 15 74 460 11 4 0 1 2 5 4 GhostCell: 1382.06 ave 2421 max 616 min Histogram: 9 50 76 125 136 94 55 18 11 2 EmptyCell: 0 ave 0 max 0 min Histogram: 576 0 0 0 0 0 0 0 0 0 collide_modify vremax 100 no run 1000 WARNING: One or more fix inflow faces oppose streaming velocity (../fix_emit_face.cpp:195) Memory usage per proc in Mbytes: particles (ave,min,max) = 1.70039 1.6875 3.54371 grid (ave,min,max) = 1.66647 1.66647 1.66647 surf (ave,min,max) = 0.0778735 0.0778732 0.077877 total (ave,min,max) = 3.45558 3.43809 5.29908 Step CPU Np Natt Ncoll Nscoll c_max 1000 0 8111069 4348 3700 0 135 1100 0.15976623 8109555 4277 3639 969 132 1200 0.31010306 8110541 4318 3677 997 128 1300 0.46973692 8112752 4428 3774 993 135 1400 0.61951734 8111564 4379 3702 1014 132 1500 0.77984396 8111099 4375 3764 1024 123 1600 0.958158 8110096 4336 3691 995 136 1700 1.1348856 8111874 4369 3765 957 133 1800 1.2931665 8110244 4288 3660 988 128 1900 1.443924 8111318 4363 3712 991 131 2000 1.5916739 8110890 4373 3730 979 129 Loop time of 1.59178 on 576 procs for 1000 steps with 8110890 particles Particle moves = 8133521026 (8.13B) Cells touched = 10942301546 (10.9B) Particle comms = 201791978 (202M) Boundary collides = 0 (0K) Boundary exits = 22775364 (22.8M) SurfColl checks = 161351326 (161M) SurfColl occurs = 995221 (0.995M) Surf reactions = 0 (0K) Collide attempts = 124524759 (125M) Collide occurs = 94820426 (94.8M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 8.87103e+06 Particle-moves/step: 8.13352e+06 Cell-touches/particle/step: 1.34533 Particle comm iterations/step: 1 Particle fraction communicated: 0.0248099 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00280019 Surface-checks/particle/step: 0.0198378 Surface-collisions/particle/step: 0.00012236 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0153101 Collisions/particle/step: 0.011658 Reactions/particle/step: 0 Move time (%) = 0.879564 (55.2568) Coll time (%) = 0.0553731 (3.4787) Sort time (%) = 0.400285 (25.147) Comm time (%) = 0.175066 (10.9982) Modfy time (%) = 0.0644704 (4.05021) Outpt time (%) = 0.0162737 (1.02236) Other time (%) = 0.000744577 (0.0467765) Particles: 14081.4 ave 14911 max 13512 min Histogram: 4 13 85 188 174 74 26 8 1 3 Cells: 1422.22 ave 3062 max 812 min Histogram: 15 74 460 11 4 0 1 2 5 4 GhostCell: 1382.06 ave 2421 max 616 min Histogram: 9 50 76 125 136 94 55 18 11 2 EmptyCell: 0 ave 0 max 0 min Histogram: 576 0 0 0 0 0 0 0 0 0