Note
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Init a simulation from another simulation#
7 import shamrock
8
9 # If we use the shamrock executable to run this script instead of the python interpreter,
10 # we should not initialize the system as the shamrock executable needs to handle specific MPI logic
11 if not shamrock.sys.is_initialized():
12 shamrock.change_loglevel(1)
13 shamrock.sys.init("0:0")
Setup parameters
19 gamma = 5.0 / 3.0
20 rho_g = 1
21
22 bmin = (-0.6, -0.6, -0.6)
23 bmax = (0.6, 0.6, 0.6)
24
25 N_target = 1e4
26 scheduler_split_val = int(2e7)
27 scheduler_merge_val = int(1)
Deduced quantities
31 import numpy as np
32
33 xm, ym, zm = bmin
34 xM, yM, zM = bmax
35 vol_b = (xM - xm) * (yM - ym) * (zM - zm)
36
37 part_vol = vol_b / N_target
38
39 # lattice volume
40 HCP_PACKING_DENSITY = 0.74
41 part_vol_lattice = HCP_PACKING_DENSITY * part_vol
42
43 dr = (part_vol_lattice / ((4.0 / 3.0) * np.pi)) ** (1.0 / 3.0)
44
45 pmass = -1
Setup
50 ctx = shamrock.Context()
51 ctx.pdata_layout_new()
52
53 model = shamrock.get_Model_SPH(context=ctx, vector_type="f64_3", sph_kernel="M4")
54
55 cfg = model.gen_default_config()
56 cfg.set_artif_viscosity_VaryingCD10(
57 alpha_min=0.0, alpha_max=1, sigma_decay=0.1, alpha_u=1, beta_AV=2
58 )
59 cfg.set_boundary_periodic()
60 cfg.set_eos_adiabatic(gamma)
61 cfg.print_status()
62 model.set_solver_config(cfg)
63 model.init_scheduler(scheduler_split_val, scheduler_merge_val)
64
65 bmin, bmax = model.get_ideal_hcp_box(dr, bmin, bmax)
66 xm, ym, zm = bmin
67 xM, yM, zM = bmax
68
69 model.resize_simulation_box(bmin, bmax)
70
71 setup = model.get_setup()
72 gen = setup.make_generator_lattice_hcp(dr, bmin, bmax)
73 setup.apply_setup(gen, insert_step=scheduler_split_val)
74
75
76 xc, yc, zc = model.get_closest_part_to((0, 0, 0))
77
78 if shamrock.sys.world_rank() == 0:
79 print("closest part to (0,0,0) is in :", xc, yc, zc)
80
81
82 vol_b = (xM - xm) * (yM - ym) * (zM - zm)
83
84 totmass = rho_g * vol_b
85
86 pmass = model.total_mass_to_part_mass(totmass)
87
88 model.set_value_in_a_box("uint", "f64", 0, bmin, bmax)
89
90 tot_u = pmass * model.get_sum("uint", "f64")
91 if shamrock.sys.world_rank() == 0:
92 print("total u :", tot_u)
93
94 model.set_particle_mass(pmass)
95
96 model.set_cfl_cour(0.1)
97 model.set_cfl_force(0.1)
----- SPH Solver configuration -----
[
{
"artif_viscosity": {
"alpha_max": 1.0,
"alpha_min": 0.0,
"alpha_u": 1.0,
"av_type": "varying_cd10",
"beta_AV": 2.0,
"sigma_decay": 0.1
},
"boundary_config": {
"bc_type": "periodic"
},
"cfl_config": {
"cfl_cour": 0.0,
"cfl_force": 0.0,
"cfl_multiplier_stiffness": 2.0,
"eta_sink": 0.05
},
"combined_dtdiv_divcurlv_compute": false,
"debug_dump_filename": "",
"do_debug_dump": false,
"enable_particle_reordering": false,
"eos_config": {
"Tvec": "f64_3",
"eos_type": "adiabatic",
"gamma": 1.6666666666666667
},
"epsilon_h": 1e-06,
"ext_force_config": {
"force_list": []
},
"gpart_mass": 0.0,
"h_iter_per_subcycles": 50,
"h_max_subcycles_count": 100,
"htol_up_coarse_cycle": 1.1,
"htol_up_fine_cycle": 1.1,
"kernel_id": "M4<f64>",
"mhd_config": {
"mhd_type": "none"
},
"particle_killing": [],
"particle_reordering_step_freq": 1000,
"save_dt_to_fields": false,
"self_grav_config": {
"softening_length": 1e-09,
"softening_mode": "plummer",
"type": "none"
},
"show_ghost_zone_graph": false,
"show_neigh_stats": false,
"smoothing_length_config": {
"type": "density_based"
},
"time_state": {
"cfl_multiplier": 0.01,
"dt_sph": 0.0,
"time": 0.0
},
"tree_reduction_level": 3,
"type_id": "sycl::vec<f64,3>",
"unit_sys": null,
"use_two_stage_search": true
}
]
------------------------------------
SPH setup: generating particles ...
SPH setup: Nstep = 11520 ( 1.2e+04 ) Ntotal = 11520 ( 1.2e+04 ) rate = 4.934931e+06 N.s^-1
SPH setup: the generation step took : 0.008872218000000001 s
SPH setup: final particle count = 11520 begining injection ...
Info: --------------------------------------------- [DataInserterUtility][rank=0]
Info: Compute load ... [DataInserterUtility][rank=0]
Info: run scheduler step ... [DataInserterUtility][rank=0]
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 6.52 us (67.0%)
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 1704.00 ns (0.4%)
patch tree reduce : 882.00 ns (0.2%)
gen split merge : 1002.00 ns (0.2%)
split / merge op : 0/0
apply split merge : 831.00 ns (0.2%)
LB compute : 464.89 us (95.6%)
LB move op cnt : 0
LB apply : 13.05 us (2.7%)
Info: Compute load ... [DataInserterUtility][rank=0]
Info: run scheduler step ... [DataInserterUtility][rank=0]
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 2.60 us (64.7%)
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 1332.00 ns (0.3%)
patch tree reduce : 420.00 ns (0.1%)
gen split merge : 410.00 ns (0.1%)
split / merge op : 0/0
apply split merge : 271.00 ns (0.1%)
LB compute : 385.35 us (98.1%)
LB move op cnt : 0
LB apply : 1904.00 ns (0.5%)
Info: Compute load ... [DataInserterUtility][rank=0]
Info: run scheduler step ... [DataInserterUtility][rank=0]
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 2.50 us (63.5%)
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 1594.00 ns (0.4%)
patch tree reduce : 441.00 ns (0.1%)
gen split merge : 441.00 ns (0.1%)
split / merge op : 0/0
apply split merge : 341.00 ns (0.1%)
LB compute : 359.38 us (97.8%)
LB move op cnt : 0
LB apply : 1954.00 ns (0.5%)
Info: --------------------------------------------- [DataInserterUtility][rank=0]
SPH setup: injected 11520 / 11520 => 100.0% | ranks with patchs = 1 / 1 <- global loop ->
SPH setup: the injection step took : 0.009128407 s
Info: injection perf report: [SPH setup][rank=0]
+======+====================+=======+=============+=============+=============+
| rank | rank get (sum/max) | MPI | alloc d% h% | mem (max) d | mem (max) h |
+======+====================+=======+=============+=============+=============+
| 0 | 0.00s / 0.00s | 0.00s | 1.4% 0.0% | 935.14 MB | 5.04 MB |
+------+--------------------+-------+-------------+-------------+-------------+
SPH setup: the setup took : 0.023448458000000002 s
closest part to (0,0,0) is in : 0.0 0.0 0.0
total u : 0.0
Single timestep to iterate the smoothing length
102 model.timestep()
103 model.dump("init.sham")
104
105 # here we can dump and load it into another context i we want like so
106 ctx_data_source = shamrock.Context()
107 ctx_data_source.pdata_layout_new()
108 model_data_source = shamrock.get_Model_SPH(
109 context=ctx_data_source, vector_type="f64_3", sph_kernel="M4"
110 )
111 model_data_source.load_from_dump("init.sham")
112
113 # trigger rebalancing
114 model_data_source.set_dt(0.0)
115 model_data_source.timestep()
116
117 # reset dt to 0 for the init of the next simulation
118 model_data_source.set_dt(0.0)
119
120 cfg = model_data_source.get_current_config()
121 cfg.print_status()
122
123 # now we feed the old context to the new model
124 ctx_new = shamrock.Context()
125 ctx_new.pdata_layout_new()
126
127 model_new = shamrock.get_Model_SPH(context=ctx_new, vector_type="f64_3", sph_kernel="M4")
128 model_new.set_solver_config(cfg)
129 model_new.init_scheduler(scheduler_split_val, scheduler_merge_val)
130 model_new.resize_simulation_box(bmin, bmax)
131
132 setup = model_new.get_setup()
133 gen = setup.make_generator_from_context(ctx_data_source)
134 setup.apply_setup(gen, insert_step=scheduler_split_val)
135
136 model_new.timestep()
---------------- t = 0, dt = 0 ----------------
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 20.31 us (2.1%)
patch tree reduce : 2.35 us (0.2%)
gen split merge : 641.00 ns (0.1%)
split / merge op : 0/0
apply split merge : 872.00 ns (0.1%)
LB compute : 898.02 us (94.3%)
LB move op cnt : 0
LB apply : 12.78 us (1.3%)
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 2.90 us (70.2%)
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.39592013888888883
Warning: smoothing length is not converged, rerunning the iterator ... [Smoothinglength][rank=0]
largest h = 0.03437860905706778 unconverged cnt = 11520
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.4238715277777777
Warning: smoothing length is not converged, rerunning the iterator ... [Smoothinglength][rank=0]
largest h = 0.03781646996277456 unconverged cnt = 11520
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.4238715277777777
Warning: smoothing length is not converged, rerunning the iterator ... [Smoothinglength][rank=0]
largest h = 0.041598116959052016 unconverged cnt = 11520
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.4506076388888888
Warning: smoothing length is not converged, rerunning the iterator ... [Smoothinglength][rank=0]
largest h = 0.045757928654957224 unconverged cnt = 11520
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.5162326388888888
Warning: smoothing length is not converged, rerunning the iterator ... [Smoothinglength][rank=0]
largest h = 0.05033372152045295 unconverged cnt = 11520
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.6863715277777777
Warning: smoothing length is not converged, rerunning the iterator ... [Smoothinglength][rank=0]
largest h = 0.05536709367249825 unconverged cnt = 11520
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.6863715277777777
Warning: smoothing length is not converged, rerunning the iterator ... [Smoothinglength][rank=0]
largest h = 0.06090380303974808 unconverged cnt = 11520
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.7886284722222223
Warning: the unit system is not set [sph::Config][rank=0]
Info: conservation infos : [sph::Model][rank=0]
sum v = (0,0,0)
sum a = (0,0,0)
sum e = 0
sum de = 0
Info: CFL hydro = 1.7976931348623157e+308 sink sink = inf [SPH][rank=0]
Info: cfl dt = 1.7976931348623157e+308 cfl multiplier : 0.01 [sph::Model][rank=0]
Info: Timestep perf report: [sph::Model][rank=0]
+======+============+=======+========+===========+======+=============+=============+=============+
| rank | rate (N/s) | Nobj | Npatch | tstep | MPI | alloc d% h% | mem (max) d | mem (max) h |
+======+============+=======+========+===========+======+=============+=============+=============+
| 0 | 3.6998e+04 | 11520 | 1 | 3.114e-01 | 0.0% | 1.1% 0.0% | 935.14 MB | 5.04 MB |
+------+------------+-------+--------+-----------+------+-------------+-------------+-------------+
Info: estimated rate : 0 (tsim/hr) [sph::Model][rank=0]
Info: Dumping state to init.sham [SPH][rank=0]
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 4.82 us (54.0%)
Info: dump to init.sham [Shamrock Dump][rank=0]
- took 5.51 ms, bandwidth = 351.96 MB/s
Info: Loading state from dump init.sham [SPH][rank=0]
Info: load dump from init.sham [Shamrock Dump][rank=0]
- took 977.56 us, bandwidth = 1.94 GB/s
---------------- t = 0, dt = 0 ----------------
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 3.32 us (0.9%)
patch tree reduce : 1092.00 ns (0.3%)
gen split merge : 671.00 ns (0.2%)
split / merge op : 0/0
apply split merge : 972.00 ns (0.3%)
LB compute : 373.94 us (96.5%)
LB move op cnt : 0
LB apply : 3.68 us (0.9%)
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 2.44 us (71.1%)
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.8190104166666667
Warning: the unit system is not set [sph::Config][rank=0]
Info: conservation infos : [sph::Model][rank=0]
sum v = (0,0,0)
sum a = (0,0,0)
sum e = 0
sum de = 0
Info: CFL hydro = 1.7976931348623157e+308 sink sink = inf [SPH][rank=0]
Info: cfl dt = 1.7976931348623157e+308 cfl multiplier : 0.34 [sph::Model][rank=0]
Info: Timestep perf report: [sph::Model][rank=0]
+======+============+=======+========+===========+======+=============+=============+=============+
| rank | rate (N/s) | Nobj | Npatch | tstep | MPI | alloc d% h% | mem (max) d | mem (max) h |
+======+============+=======+========+===========+======+=============+=============+=============+
| 0 | 1.2710e+05 | 11520 | 1 | 9.064e-02 | 0.0% | 0.8% 0.0% | 935.14 MB | 5.04 MB |
+------+------------+-------+--------+-----------+------+-------------+-------------+-------------+
Info: estimated rate : 0 (tsim/hr) [sph::Model][rank=0]
----- SPH Solver configuration -----
[
{
"artif_viscosity": {
"alpha_max": 1.0,
"alpha_min": 0.0,
"alpha_u": 1.0,
"av_type": "varying_cd10",
"beta_AV": 2.0,
"sigma_decay": 0.1
},
"boundary_config": {
"bc_type": "periodic"
},
"cfl_config": {
"cfl_cour": 0.1,
"cfl_force": 0.1,
"cfl_multiplier_stiffness": 2.0,
"eta_sink": 0.05
},
"combined_dtdiv_divcurlv_compute": false,
"debug_dump_filename": "",
"do_debug_dump": false,
"enable_particle_reordering": false,
"eos_config": {
"Tvec": "f64_3",
"eos_type": "adiabatic",
"gamma": 1.6666666666666667
},
"epsilon_h": 1e-06,
"ext_force_config": {
"force_list": []
},
"gpart_mass": 0.00017268787196946227,
"h_iter_per_subcycles": 50,
"h_max_subcycles_count": 100,
"htol_up_coarse_cycle": 1.1,
"htol_up_fine_cycle": 1.1,
"kernel_id": "M4<f64>",
"mhd_config": {
"mhd_type": "none"
},
"particle_killing": [],
"particle_reordering_step_freq": 1000,
"save_dt_to_fields": false,
"self_grav_config": {
"softening_length": 1e-09,
"softening_mode": "plummer",
"type": "none"
},
"show_ghost_zone_graph": false,
"show_neigh_stats": false,
"smoothing_length_config": {
"type": "density_based"
},
"time_state": {
"cfl_multiplier": 0.56,
"dt_sph": 0.0,
"time": 0.0
},
"tree_reduction_level": 3,
"type_id": "sycl::vec<f64,3>",
"unit_sys": null,
"use_two_stage_search": true
}
]
------------------------------------
SPH setup: generating particles ...
SPH setup: Nstep = 11520 ( 1.2e+04 ) Ntotal = 11520 ( 1.2e+04 ) rate = 1.868324e+06 N.s^-1
SPH setup: the generation step took : 0.0072206250000000005 s
SPH setup: final particle count = 11520 begining injection ...
Info: --------------------------------------------- [DataInserterUtility][rank=0]
Info: Compute load ... [DataInserterUtility][rank=0]
Info: run scheduler step ... [DataInserterUtility][rank=0]
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 4.38 us (66.2%)
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 1302.00 ns (0.4%)
patch tree reduce : 1052.00 ns (0.3%)
gen split merge : 731.00 ns (0.2%)
split / merge op : 0/0
apply split merge : 792.00 ns (0.2%)
LB compute : 311.30 us (96.6%)
LB move op cnt : 0
LB apply : 3.51 us (1.1%)
Info: Compute load ... [DataInserterUtility][rank=0]
Info: run scheduler step ... [DataInserterUtility][rank=0]
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 2.25 us (67.0%)
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 1143.00 ns (0.4%)
patch tree reduce : 341.00 ns (0.1%)
gen split merge : 390.00 ns (0.1%)
split / merge op : 0/0
apply split merge : 291.00 ns (0.1%)
LB compute : 312.38 us (97.8%)
LB move op cnt : 0
LB apply : 1813.00 ns (0.6%)
Info: Compute load ... [DataInserterUtility][rank=0]
Info: run scheduler step ... [DataInserterUtility][rank=0]
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 2.29 us (64.0%)
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 1132.00 ns (0.4%)
patch tree reduce : 441.00 ns (0.2%)
gen split merge : 401.00 ns (0.1%)
split / merge op : 0/0
apply split merge : 271.00 ns (0.1%)
LB compute : 286.20 us (97.7%)
LB move op cnt : 0
LB apply : 1714.00 ns (0.6%)
Info: --------------------------------------------- [DataInserterUtility][rank=0]
SPH setup: injected 11520 / 11520 => 100.0% | ranks with patchs = 1 / 1 <- global loop ->
SPH setup: the injection step took : 0.006283984 s
Info: injection perf report: [SPH setup][rank=0]
+======+====================+=======+=============+=============+=============+
| rank | rank get (sum/max) | MPI | alloc d% h% | mem (max) d | mem (max) h |
+======+====================+=======+=============+=============+=============+
| 0 | 0.00s / 0.00s | 0.00s | 1.3% 0.0% | 935.14 MB | 5.04 MB |
+------+--------------------+-------+-------------+-------------+-------------+
SPH setup: the setup took : 0.016144673000000002 s
---------------- t = 0, dt = 0 ----------------
Info: summary : [LoadBalance][rank=0]
Info: - strategy "psweep" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: - strategy "round robin" : max = 11520 min = 11520 [LoadBalance][rank=0]
Info: Loadbalance stats : [LoadBalance][rank=0]
npatch = 1
min = 11520
max = 11520
avg = 11520
efficiency = 100.00%
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 23.10 us (2.1%)
patch tree reduce : 1653.00 ns (0.1%)
gen split merge : 962.00 ns (0.1%)
split / merge op : 0/0
apply split merge : 1272.00 ns (0.1%)
LB compute : 1036.08 us (93.0%)
LB move op cnt : 0
LB apply : 13.51 us (1.2%)
Info: Scheduler step timings : [Scheduler][rank=0]
metadata sync : 2.92 us (70.5%)
Warning: High interface/patch volume ratio. [InterfaceGen][rank=0]
This can lead to high mpi overhead, try to increase the patch split crit
patch 0 high interf/patch volume: 0.8190104166666667
Warning: the unit system is not set [sph::Config][rank=0]
Info: conservation infos : [sph::Model][rank=0]
sum v = (0,0,0)
sum a = (0,0,0)
sum e = 0
sum de = 0
Info: CFL hydro = 1.7976931348623157e+308 sink sink = inf [SPH][rank=0]
Info: cfl dt = 1.7976931348623157e+308 cfl multiplier : 0.56 [sph::Model][rank=0]
Info: Timestep perf report: [sph::Model][rank=0]
+======+============+=======+========+===========+======+=============+=============+=============+
| rank | rate (N/s) | Nobj | Npatch | tstep | MPI | alloc d% h% | mem (max) d | mem (max) h |
+======+============+=======+========+===========+======+=============+=============+=============+
| 0 | 1.0867e+05 | 11520 | 1 | 1.060e-01 | 0.1% | 1.5% 0.0% | 935.14 MB | 5.04 MB |
+------+------------+-------+--------+-----------+------+-------------+-------------+-------------+
Info: estimated rate : 0 (tsim/hr) [sph::Model][rank=0]
<shamrock.model_sph.TimestepLog object at 0x7fb988649d70>
Recover data
141 dat = ctx_new.collect_data()
Info: collected : 1 patches [PatchScheduler][rank=0]
Test h value
145 import numpy as np
146
147 min_hpart = np.min(dat["hpart"])
148 max_hpart = np.max(dat["hpart"])
149 mean_hpart = np.mean(dat["hpart"])
150
151 print(f"hpart min={min_hpart} max={max_hpart} delta={max_hpart - min_hpart}")
152
153 assert np.abs(max_hpart - min_hpart) < 1e-15, "hpart delta is too large"
154
155 expected_h = (0.06688949833401844 + 0.06688949833401873) / 2
156
157 assert np.abs(min_hpart - expected_h) < 1e-15, "hpart is off the expected value"
hpart min=0.06688949833401846 max=0.06688949833401873 delta=2.7755575615628914e-16
Plot particle distrib
161 import matplotlib
162 import matplotlib.pyplot as plt
163 from mpl_toolkits.mplot3d import Axes3D
164
165 fig = plt.figure(dpi=120)
166 ax = fig.add_subplot(111, projection="3d")
167 ax.set_xlim3d(bmin[0], bmax[0])
168 ax.set_ylim3d(bmin[1], bmax[1])
169 ax.set_zlim3d(bmin[2], bmax[2])
170
171 cm = matplotlib.colormaps["viridis"]
172 sc = ax.scatter(
173 dat["xyz"][:, 0],
174 dat["xyz"][:, 1],
175 dat["xyz"][:, 2],
176 s=1,
177 vmin=mean_hpart - 1e-10,
178 vmax=mean_hpart + 1e-10,
179 c=dat["hpart"],
180 cmap=cm,
181 )
182 plt.colorbar(sc)
183 plt.show()
Total running time of the script: (0 minutes 4.041 seconds)
Estimated memory usage: 159 MB