Error: PosCellCode is invalid for MapCells
Hello, everyone,
I get the following error message when starting a simulation in DesignSPHysics and wonder if it could be because of my new GPU. This should have enough memory in my opinion. Starting from a number of about 3400000 particles this error occurs. The problem is that my inter-particle distance should be at least as small or even smaller. I hope you can help me.
kind regards
DualSPHysics4 [Symmetry] v4.4.053 (19-01-2020)===============================================
LoadDsphConfig> .../dualsphysics/bin/DsphConfig.xml
[Select CUDA Device]
[CUDA Capable device(s)]
Detected 1 CUDA Capable device(s)
CUDA Driver Version / Runtime Version: 11.0 / 9.2
Device 0: "GeForce RTX 2070 SUPER"
CUDA Capability Major....: 7.5
Global memory............: 8192 MBytes
CUDA Cores...............: 2560 (40 Multiprocessors, 64 CUDA Cores/MP)
GPU Max Clock rate.......: 1800 MHz (1.80 GHz)
Memory Clock rate........: 7001 Mhz
Memory Bus Width.........: 256-bit
L2 Cache Size............: 4096 KBytes
Constant memory..........: 64 KBytes
Shared memory per block..: 48 KBytes
Registers per block......: 65536
Maximum threads per MP...: 1024
Maximum threads per block: 1024
Concurrent copy and kernel execution....: Yes with 3 copy engine(s)
Run time limit on kernels...............: Yes
Integrated GPU sharing Host Memory......: No
Support host page-locked memory mapping.: Yes
Device has ECC support..................: Disabled
CUDA Device Driver Mode (TCC or WDDM)...: WDDM (Windows Display Driver Model)
Device supports Unified Addressing (UVA): Yes
Device PCI (Domain / Bus / location)....: 0 / 1 / 0
Device supports P2P and RDMA............: No
[GPU Hardware]
Device default: 0 "GeForce RTX 2070 SUPER"
Compute capability: 7.5
Memory global: 8192 MB
Memory shared: 49152 Bytes
[Initialising JSphGpuSingle 17-07-2020 08:59:21]
ProgramFile=".../dualsphysics/bin/DualSPHysics4.4_win64.exe"
ExecutionDir=".../FreeCAD/Mod/DesignSPHysics"
XmlFile=".../Rev06/Rev06_out/Rev06.xml"
OutputDir=".../16072020_MaxGeschw/Rev06/Rev06_out"
OutputDataDir=".../16072020_MaxGeschw/Rev06/Rev06_out"
**Basic case configuration is loaded
**Special case configuration is loaded
Loading initial state of particles...
Loaded particles: 3459137
MapRealPos(border)=(-0.000303033,0.499947,-0.000303033)-(1.0003,0.500053,2.06005)
MapRealPos(final)=(-0.000303033,0.499947,-0.000303033)-(1.0003,0.500053,2.06005)
**Initial state of particles is loaded
**2D-Simulation parameters:
CaseName="Rev06"
RunName="Rev06"
Simulate2DPosY=0.5
Symmetry=False
SavePosDouble=False
SvTimers=True
Boundary="DBC"
StepAlgorithm="Symplectic"
Kernel="Wendland"
Viscosity="Artificial"
Visco=0.010000
ViscoBoundFactor=1.000000
DensityDiffusion="None"
Shifting="None"
RigidAlgorithm="SPH"
FloatingCount=2
FtPause=0.000000
FtConstraints=False
FtIgnoreRadius=False
CaseNp=3459137
CaseNbound=14514
CaseNfixed=13360
CaseNmoving=0
CaseNfloat=1154
CaseNfluid=3444623
PeriodicActive="None"
Dx=0.00075
H=0.001061
CoefficientH=1
CteB=1109511.000000
Gamma=7.000000
RhopZero=1000.000000
Cs0=88.1282
CFLnumber=0.200000
DtIni=1.20354e-05
DtMin=6.01771e-07
DtAllParticles=False
MassFluid=0.000562
MassBound=0.000562
Awen (Wendland)=495111.062500
Bwen (Wendland)=-2334143488.000000
FtPause=0.000000
TimeMax=3
TimePart=0.01
Gravity=(0.000000,0.000000,-9.810000)
NpMinimum=14514
RhopOut=True
RhopOutMin=700.000000
RhopOutMax=1300.000000
WrnPartsOut=True
**Requested GPU memory for 3459147 particles: 607.0 MB (0 times).
CellMode="2H"
Hdiv=1
MapCells=(472,1,972)
DomCells=(472,1,972)
DomCellCode="14_6_13"
PosCellCode="13_10_9 (8192,1024,512)"
*** Exception (JSphGpuSingle::SelecDomain) at ..\source\JSph.cpp:1344
Text: PosCellCode is invalid for MapCells.
Finished execution (code=1).
Comments
I tried something else. The error is not caused by the total number of particles but by the dimensions of my geometry and the inter-particle-distance. I'm simulating a water tank that will cause this error if it's over 1 meter high. If you increase the width of the tank there are no problems. Furthermore smaller inter-particle-distance than 0,00075m are not possible. Therefore I can imagine that there is a limitation of the particles in the z-axis. Do you know of any way to remove these limitations?
These issues should be solved with the new version
Please note that we will release the new version 5 before 25th July.
When the new version will be available, can you try the same case again?
Regards
Thank you, I will try the new version as soon as possible and give feedback here.
With the new version this error has been fixed. Thanks a lot
Perfect