Snapshot files

From: Workman, Jared <jworkman_at_coloradomesa.edu>
Date: Thu, 22 Dec 2016 00:49:28 +0000

I’m trying to run the standard galaxy test on 16 cores. When I get data the snapshot files are 1.7 mb and the restart files are 11 mb. When I try to use gsplash to visualize the results it tells me that no particle data has been found. What am I doing wrong?
Here is my parameter file
Relevant files

InitCondFile /home/jworkman/Gadget-2.0.7/Gadget2/galaxy/galaxy_littleendian.dat
OutputDir /home/jworkman/Gadget-2.0.7/Gadget2/galaxy/


EnergyFile energy.txt
InfoFile info.txt
TimingsFile timings.txt
CpuFile cpu.txt

RestartFile restart
SnapshotFileBase snapshot

OutputListFilename /home/jworkman/Gadget-2.0.7/Gadget2/galaxy/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 3.0 % End of the simulation

Omega0 0
OmegaLambda 0
OmegaBaryon 0
HubbleParam 1.0
 BoxSize 0

% Output frequency

TimeBetSnapshot 0.05
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 0.8
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


% Softening lengths

MinGasHsmlFractional 0.25

SofteningGas 0
SofteningHalo 1.0
SofteningDisk 0.4
SofteningBulge 0
SofteningStars 0
SofteningBndry 0

SofteningGasMaxPhys 0
SofteningHaloMaxPhys 1.0
SofteningDiskMaxPhys 0.4
SofteningBulgeMaxPhys 0
SofteningStarsMaxPhys 0
SofteningBndryMaxPhys 0




MaxRMSDisplacementFac 0.2

                                                                                                  1,1 Top

> Dr. Jared Workman
> Colorado Mesa University
> Associate Professor of Physics
> WS 230 C
> Phone:(970) 248-1327
> Email: jworkman_at_coloradomesa.edu
Received on 2016-12-22 01:49:40