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*$z variable n equal 10*256*$y*$z variable n equal 10*256*160*$z variable n equal 10*256*160*160 variable fnum equal 7.33e+21/v_n seed 12345 dimension 3 global nrho 7.03E18 global fnum ${fnum} global fnum 111846923828125 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 256 $y $z create_grid 256 160 $z create_grid 256 160 160 WARNING: Could not acquire nearby ghost cells b/c grid partition is not clumped (../grid.cpp:381) Created 6553600 child grid cells parent cells = 1 CPU time = 0.0539329 secs create/ghost percent = 64.4291 35.5709 balance_grid rcb cell Balance grid migrated 6463126 cells CPU time = 0.652793 secs reassign/sort/migrate/ghost percent = 25.8642 1.15922 39.2293 33.7473 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 6696 = cells with surfs 16924 = total surfs in all grid cells 6 = max surfs in one grid cell 1.6101 = min surf-size/cell-size ratio 0 0 = number of pushed cells 6696 0 = cells overlapping surfs, overlap cells with unmarked corner pts 6523080 23824 6696 = cells outside/inside/overlapping surfs 6696 = surf cells with 1,2,etc splits 995.862 995.862 = cell-wise and global flow volume CPU time = 0.345864 secs read/sort/check/surf2grid/ghost/inout/particle percent = 1.67337 17.0428 0.74353 26.8022 53.738 34.8933 0.141718 surf_collide 1 diffuse 300.0 1.0 surf_modify all collide 1 create_particles air n 0 Created 62593655 particles CPU time = 0.770934 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) = 144.727 144.727 144.727 grid (ave,min,max) = 20.018 18.4165 21.229 surf (ave,min,max) = 0.0779292 0.0779266 0.0779305 total (ave,min,max) = 165.517 163.916 166.728 Step CPU Np Natt Ncoll Nscoll c_max 0 0 62593655 0 0 0 11 100 44.766536 62583374 25805 21093 7443 171 200 91.505442 62727345 32207 26763 7693 175 300 135.39478 63250585 34106 28502 7794 188 400 179.89567 63908943 35346 29517 7893 195 500 224.7175 64401729 35565 29657 8040 186 600 269.54588 64653829 35412 29575 7921 197 700 316.08898 64756507 35629 29673 7936 188 800 359.89481 64807183 35591 29568 8068 180 900 404.23572 64821033 35444 29593 7922 189 1000 448.44858 64823111 35449 29710 7891 186 Loop time of 448.453 on 72 procs for 1000 steps with 64823111 particles Particle moves = 64142333138 (64.1B) Cells touched = 108719708199 (109B) Particle comms = 735525922 (736M) Boundary collides = 0 (0K) Boundary exits = 179979294 (180M) SurfColl checks = 468418491 (468M) SurfColl occurs = 7777865 (7.78M) Surf reactions = 0 (0K) Collide attempts = 946060650 (946M) Collide occurs = 719395611 (719M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 1.98653e+06 Particle-moves/step: 6.41423e+07 Cell-touches/particle/step: 1.69498 Particle comm iterations/step: 1 Particle fraction communicated: 0.0114671 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00280594 Surface-checks/particle/step: 0.0073028 Surface-collisions/particle/step: 0.000121259 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0147494 Collisions/particle/step: 0.0112156 Reactions/particle/step: 0 Move time (%) = 307.472 (68.5628) Coll time (%) = 12.9263 (2.88242) Sort time (%) = 110.57 (24.6559) Comm time (%) = 10.6671 (2.37865) Modfy time (%) = 5.54037 (1.23544) Outpt time (%) = 1.2626 (0.281545) Other time (%) = 0.0146637 (0.00326985) Particles: 900321 ave 908484 max 897143 min Histogram: 3 29 20 8 5 1 2 1 1 2 Cells: 91022.2 ave 114647 max 74964 min Histogram: 4 6 6 13 39 0 0 0 1 3 GhostCell: 27493.8 ave 40453 max 15010 min Histogram: 3 6 9 9 8 13 12 4 4 4 EmptyCell: 0 ave 0 max 0 min Histogram: 72 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) = 144.727 144.727 144.727 grid (ave,min,max) = 20.8505 19.354 25.0415 surf (ave,min,max) = 0.0779292 0.0779266 0.0779305 total (ave,min,max) = 166.35 164.783 170.721 Step CPU Np Natt Ncoll Nscoll c_max 1000 0 64823111 35449 29710 0 186 1100 44.106189 64828497 35753 29745 7949 189 1200 88.188569 64830142 35671 29853 8022 186 1300 131.97684 64829076 35643 29794 7967 178 1400 175.72597 64825418 35611 29835 8036 184 1500 219.44464 64823218 35564 29620 7856 199 1600 263.04507 64825742 35346 29565 8038 184 1700 306.5982 64830108 35561 29598 7949 195 1800 350.14094 64830124 35525 29686 7901 187 1900 393.75246 64831901 35635 29687 7929 202 2000 437.37394 64833544 35607 29651 8075 188 Loop time of 437.378 on 72 procs for 1000 steps with 64833544 particles Particle moves = 65010110349 (65B) Cells touched = 110114858891 (110B) Particle comms = 709894049 (710M) Boundary collides = 0 (0K) Boundary exits = 182196214 (182M) SurfColl checks = 488858850 (489M) SurfColl occurs = 7989977 (7.99M) Surf reactions = 0 (0K) Collide attempts = 995550565 (996M) Collide occurs = 757166280 (757M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 2.06439e+06 Particle-moves/step: 6.50101e+07 Cell-touches/particle/step: 1.69381 Particle comm iterations/step: 1 Particle fraction communicated: 0.0109197 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00280258 Surface-checks/particle/step: 0.00751974 Surface-collisions/particle/step: 0.000122904 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0153138 Collisions/particle/step: 0.0116469 Reactions/particle/step: 0 Move time (%) = 301.84 (69.0113) Coll time (%) = 13.2359 (3.02619) Sort time (%) = 108.112 (24.7182) Comm time (%) = 10.5221 (2.40573) Modfy time (%) = 2.35694 (0.538879) Outpt time (%) = 1.29634 (0.29639) Other time (%) = 0.0145585 (0.00332859) Particles: 900466 ave 906904 max 897692 min Histogram: 7 23 18 7 5 3 4 1 1 3 Cells: 91022.2 ave 114647 max 74964 min Histogram: 4 6 6 13 39 0 0 0 1 3 GhostCell: 27493.8 ave 40453 max 15010 min Histogram: 3 6 9 9 8 13 12 4 4 4 EmptyCell: 0 ave 0 max 0 min Histogram: 72 0 0 0 0 0 0 0 0 0