param.txt 4.51 KB
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%% parameters for cosmo_box_star_formation_3d

%----  Relevant files
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InitCondFile                            ./ics
OutputDir                               ./output
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SnapshotFileBase                        snap
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OutputListFilename                      ./output_list.txt
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%---- File formats
ICFormat                                1
SnapFormat                              3

%---- CPU-time limits
TimeLimitCPU                            90000
CpuTimeBetRestartFile                   12000
FlushCpuTimeDiff                        120

ResubmitOn                              0
ResubmitCommand                         my-scriptfile

%----- Memory alloction
MaxMemSize                              2500

%---- Caracteristics of run
TimeBegin                               0.0078125  % Begin of the simulation; z=127
TimeMax                                 1.0  % End of the simulation z=0

%---- Basic code options that set the type of simulation
ComovingIntegrationOn                   1
PeriodicBoundariesOn                    1
CoolingOn                               1
StarformationOn                         1

%---- Cosmological parameters (Planck cosmology)
Omega0                                  0.3089
OmegaLambda                             0.6911
OmegaBaryon                             0.0486
HubbleParam                             0.6774
BoxSize                                 7500.0

%---- Output frequency and output parameters
OutputListOn                            1
TimeBetSnapshot                         0.0
TimeOfFirstSnapshot                     0.0
TimeBetStatistics                       0.01
NumFilesPerSnapshot                     1
NumFilesWrittenInParallel               1

%---- Accuracy of time integration
TypeOfTimestepCriterion                 0
ErrTolIntAccuracy                       0.012
CourantFac                              0.3
MaxSizeTimestep                         0.005
MinSizeTimestep                         1.0e-9

%---- Treatment of empty space and temperature limits
InitGasTemp                             244.8095
MinGasTemp                              5.0
MinimumDensityOnStartUp                 1.0e-20
LimitUBelowThisDensity                  0.0
LimitUBelowCertainDensityToThisValue    0.0
MinEgySpec                              0.0

%---- Tree algorithm, force accuracy, domain update frequency
TypeOfOpeningCriterion                  1
ErrTolTheta                             0.7
ErrTolForceAcc                          0.0025
MultipleDomains                         8
TopNodeFactor                           2.5
ActivePartFracForNewDomainDecomp        0.01
 
%---- Initial density estimate
DesNumNgb                               64
MaxNumNgbDeviation                      4

%---- 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

%---- Gravitational softening lengths
SofteningComovingType0                  6.0
SofteningComovingType1                  6.0

SofteningMaxPhysType0                   3.0
SofteningMaxPhysType1                   3.0

GasSoftFactor                           2.5

SofteningTypeOfPartType0                0
SofteningTypeOfPartType1                1
SofteningTypeOfPartType2                1
SofteningTypeOfPartType3                1
SofteningTypeOfPartType4                1
SofteningTypeOfPartType5                1

MinimumComovingHydroSoftening           0.25
AdaptiveHydroSofteningSpacing           1.2

%----- Mesh regularization options
CellShapingSpeed                        0.5
CellMaxAngleFactor                      2.25
ReferenceGasPartMass                    0
TargetGasMassFactor                     1
RefinementCriterion                     1
DerefinementCriterion                   1

%----- Subfind
ErrTolThetaSubfind                      0.7
DesLinkNgb                              20

%---- Parameters for star formation model
CritPhysDensity                         0       % critical physical density for star formation (in cm^(-3))
MaxSfrTimescale                         2.27    % in internal time units
CritOverDensity                         57.7    % overdensity threshold value
TempSupernova                           5.73e7  % in Kelvin
TempClouds                              1000.0  % in Kelvin
FactorEVP                               573.0
TemperatureThresh                       1e+06
FactorSN                                0.1

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TreecoolFile                            ./TREECOOL_ep