1SPARTA (26 Feb 2021) 2################################################################################ 3# thermal gas in a 3d box with free molecular flow (no collisions) 4# 5# Note: 6# - The "comm/sort” option to the “global” command is used to match MPI runs. 7# - The “twopass” option is used to match Kokkos runs. 8# The "comm/sort" and "twopass" options should not be used for production runs. 9################################################################################ 10# particles reflect off global box boundaries 11 12seed 12345 13dimension 3 14global gridcut 1.0e-5 comm/sort yes 15 16boundary rr rr rr 17 18create_box 0 0.0001 0 0.0001 0 0.0001 19Created orthogonal box = (0 0 0) to (0.0001 0.0001 0.0001) 20create_grid 10 10 10 21Created 1000 child grid cells 22 CPU time = 0.00146604 secs 23 create/ghost percent = 59.0828 40.9172 24 25balance_grid rcb part 26Balance grid migrated 0 cells 27 CPU time = 0.000530243 secs 28 reassign/sort/migrate/ghost percent = 38.4442 0.629496 10.1169 50.8094 29 30species ar.species Ar 31mixture air Ar vstream 0.0 0.0 0.0 temp 273.15 32 33global nrho 7.07043E22 34global fnum 7.07043E6 35 36create_particles air n 10000 twopass 37Created 10000 particles 38 CPU time = 0.00464368 secs 39 40stats 100 41compute temp temp 42stats_style step cpu np nattempt ncoll c_temp 43 44#dump 2 image all 100 image.*.ppm type type pdiam 3.0e-6 # size 512 512 gline yes 0.005 45#dump_modify 2 pad 4 46 47timestep 7.00E-9 48run 1000 49Memory usage per proc in Mbytes: 50 particles (ave,min,max) = 1.6875 1.6875 1.6875 51 grid (ave,min,max) = 1.51379 1.51379 1.51379 52 surf (ave,min,max) = 0 0 0 53 total (ave,min,max) = 3.20129 3.20129 3.20129 54Step CPU Np Natt Ncoll c_temp 55 0 0 10000 0 0 273.86304 56 100 0.040561914 10000 0 0 273.86304 57 200 0.081481218 10000 0 0 273.86304 58 300 0.12299037 10000 0 0 273.86304 59 400 0.1638639 10000 0 0 273.86304 60 500 0.20468926 10000 0 0 273.86304 61 600 0.24554276 10000 0 0 273.86304 62 700 0.28637004 10000 0 0 273.86304 63 800 0.32724953 10000 0 0 273.86304 64 900 0.36807895 10000 0 0 273.86304 65 1000 0.40891361 10000 0 0 273.86304 66Loop time of 0.408925 on 1 procs for 1000 steps with 10000 particles 67 68MPI task timing breakdown: 69Section | min time | avg time | max time |%varavg| %total 70--------------------------------------------------------------- 71Move | 0.40676 | 0.40676 | 0.40676 | 0.0 | 99.47 72Coll | 0 | 0 | 0 | 0.0 | 0.00 73Sort | 0 | 0 | 0 | 0.0 | 0.00 74Comm | 0.00048566 | 0.00048566 | 0.00048566 | 0.0 | 0.12 75Modify | 0 | 0 | 0 | 0.0 | 0.00 76Output | 0.00075507 | 0.00075507 | 0.00075507 | 0.0 | 0.18 77Other | | 0.0009279 | | | 0.23 78 79Particle moves = 10000000 (10M) 80Cells touched = 13599730 (13.6M) 81Particle comms = 0 (0K) 82Boundary collides = 399938 (0.4M) 83Boundary exits = 0 (0K) 84SurfColl checks = 0 (0K) 85SurfColl occurs = 0 (0K) 86Surf reactions = 0 (0K) 87Collide attempts = 0 (0K) 88Collide occurs = 0 (0K) 89Reactions = 0 (0K) 90Particles stuck = 0 91Axisymm bad moves = 0 92 93Particle-moves/CPUsec/proc: 2.44544e+07 94Particle-moves/step: 10000 95Cell-touches/particle/step: 1.35997 96Particle comm iterations/step: 1 97Particle fraction communicated: 0 98Particle fraction colliding with boundary: 0.0399938 99Particle fraction exiting boundary: 0 100Surface-checks/particle/step: 0 101Surface-collisions/particle/step: 0 102Surf-reactions/particle/step: 0 103Collision-attempts/particle/step: 0 104Collisions/particle/step: 0 105Reactions/particle/step: 0 106 107Particles: 10000 ave 10000 max 10000 min 108Histogram: 1 0 0 0 0 0 0 0 0 0 109Cells: 1000 ave 1000 max 1000 min 110Histogram: 1 0 0 0 0 0 0 0 0 0 111GhostCell: 0 ave 0 max 0 min 112Histogram: 1 0 0 0 0 0 0 0 0 0 113EmptyCell: 0 ave 0 max 0 min 114Histogram: 1 0 0 0 0 0 0 0 0 0 115