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*$z variable n equal 10*16*10*$z variable n equal 10*16*10*20 variable fnum equal 7.33e+21/v_n seed 12345 dimension 3 global nrho 7.03E18 global fnum ${fnum} global fnum 2.290625e+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 10 $z create_grid 16 10 20 WARNING: Could not acquire nearby ghost cells b/c grid partition is not clumped (../grid.cpp:381) Created 3200 child grid cells parent cells = 1 CPU time = 0.010143 secs create/ghost percent = 58.5925 41.4075 balance_grid rcb cell Balance grid migrated 3140 cells CPU time = 0.0497921 secs reassign/sort/migrate/ghost percent = 62.2549 3.09275 24.5802 10.0722 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 48 = cells with surfs 2200 = total surfs in all grid cells 104 = max surfs in one grid cell 0.100631 = min surf-size/cell-size ratio 0 0 = number of pushed cells 48 0 = cells overlapping surfs, overlap cells with unmarked corner pts 3152 0 48 = cells outside/inside/overlapping surfs 48 = surf cells with 1,2,etc splits 995.862 995.862 = cell-wise and global flow volume CPU time = 0.045928 secs read/sort/check/surf2grid/ghost/inout/particle percent = 34.4759 0.0981125 11.7159 48.3866 5.32351 7.26811 0.0238792 surf_collide 1 diffuse 300.0 1.0 surf_modify all collide 1 create_particles air n 0 Created 30563 particles CPU time = 0.017839 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) = 0.0779371 0.0779343 0.0779381 total (ave,min,max) = 3.43228 3.43228 3.43229 Step CPU Np Natt Ncoll Nscoll c_max 0 0 30563 0 0 0 11 100 0.053923845 30551 4 3 6 34 200 0.097460032 30641 10 10 4 43 300 0.14284587 30979 12 12 3 40 400 0.19137383 31196 14 13 4 50 500 0.23824382 31535 14 14 3 45 600 0.28591299 31529 13 12 6 41 700 0.33527994 31684 16 14 5 48 800 0.38294291 31932 15 15 9 48 900 0.43007088 31855 14 14 3 43 1000 0.47709799 31968 14 13 2 46 Loop time of 0.477183 on 64 procs for 1000 steps with 31968 particles Particle moves = 31389732 (31.4M) Cells touched = 32739841 (32.7M) Particle comms = 397778 (0.398M) Boundary collides = 0 (0K) Boundary exits = 87418 (87.4K) SurfColl checks = 25604251 (25.6M) SurfColl occurs = 3957 (3.96K) Surf reactions = 0 (0K) Collide attempts = 456500 (0.456M) Collide occurs = 350467 (0.35M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 1.02783e+06 Particle-moves/step: 31389.7 Cell-touches/particle/step: 1.04301 Particle comm iterations/step: 1 Particle fraction communicated: 0.0126722 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00278492 Surface-checks/particle/step: 0.815689 Surface-collisions/particle/step: 0.00012606 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.014543 Collisions/particle/step: 0.011165 Reactions/particle/step: 0 Move time (%) = 0.300665 (63.0083) Coll time (%) = 0.0192638 (4.03698) Sort time (%) = 0.0103235 (2.16343) Comm time (%) = 0.0741986 (15.5493) Modfy time (%) = 0.0678736 (14.2238) Outpt time (%) = 0.00199724 (0.418549) Other time (%) = 0.0028613 (0.599623) Particles: 499.5 ave 507 max 492 min Histogram: 2 4 9 6 10 5 13 5 8 2 Cells: 50 ave 64 max 37 min Histogram: 3 2 5 6 16 20 7 2 1 2 GhostCell: 128.203 ave 216 max 70 min Histogram: 6 6 7 15 5 13 9 1 1 1 EmptyCell: 0 ave 0 max 0 min Histogram: 64 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) = 0.0779371 0.0779343 0.0779381 total (ave,min,max) = 3.43228 3.43219 3.43239 Step CPU Np Natt Ncoll Nscoll c_max 1000 0 31968 14 13 0 46 1100 0.04855895 31981 16 15 5 50 1200 0.096159935 31972 14 12 5 48 1300 0.14373994 31847 15 15 2 41 1400 0.19124484 31736 12 12 3 46 1500 0.24136281 31734 13 13 3 40 1600 0.28983188 31530 15 14 4 50 1700 0.33768296 31688 15 15 5 55 1800 0.38814402 31690 20 18 3 50 1900 0.44003081 31725 15 14 3 44 2000 0.48780894 31803 15 15 4 44 Loop time of 0.487891 on 64 procs for 1000 steps with 31803 particles Particle moves = 31893678 (31.9M) Cells touched = 33266696 (33.3M) Particle comms = 371138 (0.371M) Boundary collides = 0 (0K) Boundary exits = 88821 (88.8K) SurfColl checks = 28251884 (28.3M) SurfColl occurs = 4253 (4.25K) Surf reactions = 0 (0K) Collide attempts = 488067 (0.488M) Collide occurs = 373978 (0.374M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 1.02141e+06 Particle-moves/step: 31893.7 Cell-touches/particle/step: 1.04305 Particle comm iterations/step: 1 Particle fraction communicated: 0.0116367 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00278491 Surface-checks/particle/step: 0.885815 Surface-collisions/particle/step: 0.000133349 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0153029 Collisions/particle/step: 0.0117258 Reactions/particle/step: 0 Move time (%) = 0.326914 (67.0055) Coll time (%) = 0.0180407 (3.69769) Sort time (%) = 0.00969221 (1.98655) Comm time (%) = 0.0724642 (14.8525) Modfy time (%) = 0.0569001 (11.6625) Outpt time (%) = 0.00185826 (0.380875) Other time (%) = 0.00202148 (0.41433) Particles: 496.922 ave 546 max 421 min Histogram: 1 1 1 6 13 7 11 14 6 4 Cells: 50 ave 63 max 36 min Histogram: 3 1 2 6 13 23 9 3 1 3 GhostCell: 132.188 ave 273 max 72 min Histogram: 8 11 18 9 9 4 3 1 0 1 EmptyCell: 0 ave 0 max 0 min Histogram: 64 0 0 0 0 0 0 0 0 0