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*$z variable n equal 10*64*$y*$z variable n equal 10*64*40*$z variable n equal 10*64*40*80 variable fnum equal 7.33e+21/v_n seed 12345 dimension 3 global nrho 7.03E18 global fnum ${fnum} global fnum 3.5791015625e+15 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 64 $y $z create_grid 64 40 $z create_grid 64 40 80 WARNING: Could not acquire nearby ghost cells b/c grid partition is not clumped (../grid.cpp:381) Created 204800 child grid cells parent cells = 1 CPU time = 0.0368499 secs create/ghost percent = 84.5837 15.4163 balance_grid rcb cell Balance grid migrated 202062 cells CPU time = 0.108046 secs reassign/sort/migrate/ghost percent = 36.8291 0.355951 55.3558 7.45911 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 680 = cells with surfs 4936 = total surfs in all grid cells 16 = max surfs in one grid cell 0.402525 = min surf-size/cell-size ratio 0 0 = number of pushed cells 680 0 = cells overlapping surfs, overlap cells with unmarked corner pts 203592 528 680 = cells outside/inside/overlapping surfs 680 = surf cells with 1,2,etc splits 995.862 995.862 = cell-wise and global flow volume CPU time = 0.145965 secs read/sort/check/surf2grid/ghost/inout/particle percent = 68.742 0.285522 2.02908 25.9091 3.03435 2.05423 0.00910987 surf_collide 1 diffuse 300.0 1.0 surf_modify all collide 1 create_particles air n 0 Created 1956051 particles CPU time = 0.0271373 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) = 3.54371 3.54371 3.54371 grid (ave,min,max) = 1.66647 1.66647 1.66647 surf (ave,min,max) = 0.0779292 0.0779266 0.0779305 total (ave,min,max) = 5.30981 5.3098 5.30981 Step CPU Np Natt Ncoll Nscoll c_max 0 0 1956051 0 0 0 11 100 0.36595936 1955332 670 560 219 95 200 0.76305806 1960153 915 788 261 100 300 1.0915884 1976509 979 848 237 99 400 1.423814 1997468 1014 880 233 110 500 1.7780982 2014188 999 869 224 90 600 2.1216725 2023380 1017 895 237 105 700 2.4595077 2028188 1004 913 240 103 800 2.8183774 2029523 1012 893 227 93 900 3.154374 2029233 1000 886 218 102 1000 3.4878145 2028688 1046 914 258 92 Loop time of 3.48825 on 72 procs for 1000 steps with 2028688 particles Particle moves = 2006306945 (2.01B) Cells touched = 2369021989 (2.37B) Particle comms = 23481972 (23.5M) Boundary collides = 0 (0K) Boundary exits = 5622895 (5.62M) SurfColl checks = 87712088 (87.7M) SurfColl occurs = 237627 (0.238M) Surf reactions = 0 (0K) Collide attempts = 29436376 (29.4M) Collide occurs = 22448028 (22.4M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 7.98836e+06 Particle-moves/step: 2.00631e+06 Cell-touches/particle/step: 1.18079 Particle comm iterations/step: 1 Particle fraction communicated: 0.0117041 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00280261 Surface-checks/particle/step: 0.0437182 Surface-collisions/particle/step: 0.00011844 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0146719 Collisions/particle/step: 0.0111887 Reactions/particle/step: 0 Move time (%) = 1.8846 (54.0271) Coll time (%) = 0.165859 (4.7548) Sort time (%) = 1.09694 (31.4467) Comm time (%) = 0.202803 (5.8139) Modfy time (%) = 0.118722 (3.40349) Outpt time (%) = 0.0174416 (0.500012) Other time (%) = 0.00188446 (0.0540231) Particles: 28176.2 ave 29526 max 27643 min Histogram: 9 23 15 8 8 3 1 2 1 2 Cells: 2844.44 ave 3644 max 2287 min Histogram: 4 2 9 10 42 1 0 0 2 2 GhostCell: 1506.88 ave 2372 max 761 min Histogram: 2 8 15 10 10 4 7 5 7 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) = 3.54371 3.54371 3.54371 grid (ave,min,max) = 1.66647 1.66647 1.66647 surf (ave,min,max) = 0.0779292 0.0779266 0.0779305 total (ave,min,max) = 5.30981 5.30555 5.31591 Step CPU Np Natt Ncoll Nscoll c_max 1000 0 2028688 1046 914 0 92 1100 0.33431268 2029249 1010 887 227 86 1200 0.66782671 2028979 987 856 224 100 1300 1.0081819 2028097 1017 873 221 97 1400 1.3484066 2028749 1039 924 233 94 1500 1.6824921 2028782 1019 902 250 95 1600 2.0172532 2027997 998 856 244 92 1700 2.3574939 2028860 1037 916 240 101 1800 2.6929022 2030224 1056 929 220 95 1900 3.028728 2030084 1020 886 254 91 2000 3.3645513 2030485 1034 904 224 99 Loop time of 3.36464 on 72 procs for 1000 steps with 2030485 particles Particle moves = 2034791354 (2.03B) Cells touched = 2403094966 (2.4B) Particle comms = 23126323 (23.1M) Boundary collides = 0 (0K) Boundary exits = 5691378 (5.69M) SurfColl checks = 92847302 (92.8M) SurfColl occurs = 245659 (0.246M) Surf reactions = 0 (0K) Collide attempts = 31077644 (31.1M) Collide occurs = 23702342 (23.7M) Reactions = 0 (0K) Particles stuck = 0 Particle-moves/CPUsec/proc: 8.3994e+06 Particle-moves/step: 2.03479e+06 Cell-touches/particle/step: 1.181 Particle comm iterations/step: 1 Particle fraction communicated: 0.0113655 Particle fraction colliding with boundary: 0 Particle fraction exiting boundary: 0.00279703 Surface-checks/particle/step: 0.0456299 Surface-collisions/particle/step: 0.000120729 Surf-reactions/particle/step: 0 Collision-attempts/particle/step: 0.0152731 Collisions/particle/step: 0.0116485 Reactions/particle/step: 0 Move time (%) = 1.82636 (54.281) Coll time (%) = 0.168144 (4.99739) Sort time (%) = 1.10973 (32.9821) Comm time (%) = 0.184069 (5.47069) Modfy time (%) = 0.0608382 (1.80816) Outpt time (%) = 0.0140592 (0.417851) Other time (%) = 0.00144151 (0.0428428) Particles: 28201.2 ave 29463 max 27677 min Histogram: 9 21 18 7 3 6 3 2 2 1 Cells: 2844.44 ave 3644 max 2287 min Histogram: 4 2 9 10 42 1 0 0 2 2 GhostCell: 1506.88 ave 2372 max 761 min Histogram: 2 8 15 10 10 4 7 5 7 4 EmptyCell: 0 ave 0 max 0 min Histogram: 72 0 0 0 0 0 0 0 0 0