/
Configuration.reference
163 lines (88 loc) · 2.93 KB
/
Configuration.reference
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
% Relevant files
InitCondFile GalaxyCollision.IC
OutputDir ./
EnergyFile energy.txt
InfoFile info.txt
TimingsFile timings.txt
CpuFile cpu.txt
RestartFile restart
SnapshotFileBase snapshot
% Note this is not used by the Galaxy Collision (OutputListOn is set to 0 below)
OutputListFilename parameterfiles/output_list.txt
% CPU time -limit
TimeLimitCPU 36000 % = 10 hours
ResubmitOn 0
ResubmitCommand my-scriptfile
% Code options
ICFormat 1
SnapFormat 1
ComovingIntegrationOn 0
TypeOfTimestepCriterion 0
OutputListOn 0
PeriodicBoundariesOn 0
% Caracteristics of run
TimeBegin 0.0 % Begin of the simulation
TimeMax 2.0 % End of the simulation
Omega0 0
OmegaLambda 0
OmegaBaryon 0
HubbleParam 1.0
BoxSize 0
% Output frequency
TimeBetSnapshot 0.01
TimeOfFirstSnapshot 0
CpuTimeBetRestartFile 36000.0 ; here in seconds
TimeBetStatistics 0.05
NumFilesPerSnapshot 1
NumFilesWrittenInParallel 1
% Accuracy of time integration
ErrTolIntAccuracy 0.025
CourantFac 0.15
MaxSizeTimestep 0.01
MinSizeTimestep 0.0
% Tree algorithm, force accuracy, domain update frequency
ErrTolTheta 0.5
TypeOfOpeningCriterion 1
ErrTolForceAcc 0.005
TreeDomainUpdateFrequency 0.1
% Further parameters of SPH
DesNumNgb 50
MaxNumNgbDeviation 2
ArtBulkViscConst 0.8
InitGasTemp 0 % always ignored if set to 0
MinGasTemp 0
% Memory allocation
PartAllocFactor 1.5
TreeAllocFactor 8
BufferSize 25 % in MByte
% System of units
UnitLength_in_cm 3.085678e21 ; 1.0 kpc
UnitMass_in_g 1.989e43 ; 1.0e10 solar masses
UnitVelocity_in_cm_per_s 1e5 ; 1 km/sec
GravityConstantInternal 0
% Gravity types
% Note that this Configuration.reference can be used with the GADGET-2 galaxy collision simulation.
% That initial condition file uses only GADGET-2 types Halo (1) and Disk (2). Here GADGET-2 types
% {0,1,3,4,5} are bound to the first gravitational interaction (0), which GADGET-2 type {2} is bound
% to the second gravitational interaction (1). These interactions are defined in ngravs.c and ngravs.h
GravityGas 0
GravityHalo 0
GravityDisk 1
GravityBulge 0
GravityStars 0
GravityBndry 0
% Softening lengths
MinGasHsmlFractional 0.25
SofteningGas 0
SofteningHalo 1.0
SofteningDisk 0.4
SofteningBulge 1.0
SofteningStars 1.0
SofteningBndry 1.0
SofteningGasMaxPhys 0
SofteningHaloMaxPhys 1.0
SofteningDiskMaxPhys 0.4
SofteningBulgeMaxPhys 1.0
SofteningStarsMaxPhys 1.0
SofteningBndryMaxPhys 1.0
MaxRMSDisplacementFac 0.2