SPARTA (23 Dec 2017) KOKKOS mode is enabled (../kokkos.cpp:39) using 0 GPU(s) per MPI task using 1 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*$z variable n equal 10*16*$y*$z variable n equal 10*16*20*$z variable n equal 10*16*20*20 variable fnum equal 7.33e+21/v_n seed 12345 dimension 3 global nrho 7.03E18 global fnum ${fnum} global fnum 1.1453125e+17 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 16 $y $z create_grid 16 20 $z create_grid 16 20 20 WARNING: Could not acquire nearby ghost cells b/c grid partition is not clumped (../grid.cpp:381) Created 6400 child grid cells parent cells = 1 CPU time = 0.00448394 secs create/ghost percent = 72.0104 27.9896 balance_grid rcb cell Balance grid migrated 6200 cells CPU time = 0.0139441 secs reassign/sort/migrate/ghost percent = 51.6568 2.25182 34.2714 11.8199 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 72 = cells with surfs 2428 = total surfs in all grid cells 60 = max surfs in one grid cell 0.16101 = min surf-size/cell-size ratio 0 0 = number of pushed cells 72 0 = cells overlapping surfs, overlap cells with unmarked corner pts 6320 8 72 = cells outside/inside/overlapping surfs 72 = surf cells with 1,2,etc splits 995.862 995.862 = cell-wise and global flow volume CPU time = 0.015259 secs read/sort/check/surf2grid/ghost/inout/particle percent = 33.6917 2.15622 8.63737 51.4648 4.04994 2.83121 0.0062499 surf_collide 1 diffuse 300.0 1.0 surf_modify all collide 1 create_particles air n 0 Created 61126 particles CPU time = 0.00862384 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) = 0.0780087 0.0780067 0.0780106 total (ave,min,max) = 3.4335 3.4335 3.4335 Step CPU Np Natt Ncoll Nscoll c_max 0 0 61126 0 0 0 11 100 0.021567106 60803 8 7 9 32 200 0.039144993 61204 19 19 7 48 300 0.060153008 61853 16 14 4 37 400 0.078429937 62489 26 26 7 43 500 0.096908092 63039 24 21 8 49 600 0.11578393 62876 28 27 7 47 700 0.13606906 63259 20 18 6 45 800 0.15478396 63520 22 21 7 45 900 0.17456198 63907 30 30 5 47 1000 0.19395208 63941 24 21 6 49 Loop time of 0.193967 on 32 procs for 1000 steps with 63941 particles Particle moves = 62711858 (62.7M) Cells touched = 65555733 (65.6M) Particle comms = 401260 (0.401M) Boundary collides = 0 (0K) Boundary exits = 175256 (0.175M) SurfColl checks = 29027504 (29M) SurfColl occurs = 7275 (7.28K) Surf reactions = 0 (0K) Collide attempts = 907620 (0.908M) Collide occurs = 695641 (0.696M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 1.01035e+07 Particle-moves/step: 62711.9 Cell-touches/particle/step: 1.04535 Particle comm iterations/step: 1 Particle fraction communicated: 0.00639847 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00279462 Surface-checks/particle/step: 0.462871 Surface-collisions/particle/step: 0.000116007 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0144729 Collisions/particle/step: 0.0110927 Reactions/particle/step: 0 Move time (%) = 0.133069 (68.6042) Coll time (%) = 0.010107 (5.21071) Sort time (%) = 0.0110786 (5.71157) Comm time (%) = 0.0217611 (11.219) Modfy time (%) = 0.016989 (8.75873) Outpt time (%) = 0.000596114 (0.307327) Other time (%) = 0.000365585 (0.188478) Particles: 1998.16 ave 2114 max 1864 min Histogram: 2 2 2 2 5 4 7 4 2 2 Cells: 200 ave 220 max 181 min Histogram: 4 5 1 1 5 4 3 4 1 4 GhostCell: 250.219 ave 360 max 175 min Histogram: 7 4 4 4 4 1 0 0 2 6 EmptyCell: 0 ave 0 max 0 min Histogram: 32 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) = 1.6875 1.6875 1.6875 grid (ave,min,max) = 1.66647 1.66647 1.66647 surf (ave,min,max) = 0.0780087 0.0780067 0.0780106 total (ave,min,max) = 3.4335 3.43335 3.43365 Step CPU Np Natt Ncoll Nscoll c_max 1000 0 63941 24 21 0 49 1100 0.01978898 63661 23 23 9 41 1200 0.039741039 63533 29 27 5 42 1300 0.059404135 63734 26 22 6 40 1400 0.078347921 63961 21 19 3 44 1500 0.097098112 63925 27 24 5 43 1600 0.11615705 63871 29 28 9 50 1700 0.1349411 63854 23 22 7 43 1800 0.15368295 63852 22 16 11 43 1900 0.17306614 63853 29 24 12 47 2000 0.19209599 63619 21 19 4 46 Loop time of 0.19211 on 32 procs for 1000 steps with 63619 particles Particle moves = 63980498 (64M) Cells touched = 66896408 (66.9M) Particle comms = 487574 (0.488M) Boundary collides = 0 (0K) Boundary exits = 178374 (0.178M) SurfColl checks = 32349892 (32.3M) SurfColl occurs = 7807 (7.81K) Surf reactions = 0 (0K) Collide attempts = 976828 (0.977M) Collide occurs = 750095 (0.75M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 1.04075e+07 Particle-moves/step: 63980.5 Cell-touches/particle/step: 1.04557 Particle comm iterations/step: 1 Particle fraction communicated: 0.00762067 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00278794 Surface-checks/particle/step: 0.505621 Surface-collisions/particle/step: 0.000122022 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0152676 Collisions/particle/step: 0.0117238 Reactions/particle/step: 0 Move time (%) = 0.140331 (73.0473) Coll time (%) = 0.00977636 (5.08894) Sort time (%) = 0.0110791 (5.76703) Comm time (%) = 0.0206336 (10.7405) Modfy time (%) = 0.00939719 (4.89156) Outpt time (%) = 0.000539802 (0.280986) Other time (%) = 0.00035274 (0.183614) Particles: 1988.09 ave 2137 max 1857 min Histogram: 3 1 5 3 5 6 3 3 1 2 Cells: 200 ave 220 max 181 min Histogram: 4 5 1 1 5 4 3 4 1 4 GhostCell: 250.219 ave 360 max 175 min Histogram: 7 4 4 4 4 1 0 0 2 6 EmptyCell: 0 ave 0 max 0 min Histogram: 32 0 0 0 0 0 0 0 0 0