Mphase crash + accinput to many phases
Hi! I'll start with the problem:
*** Exception (JSphGpuSingle::ConstantDataUp) at JSphGpu.cpp:588 Text: Failed copying constants to GPU. (CUDA error 1 (invalid argument)).
I have several phases in the 2D simulation, automatically generated based on ice charts. I thought I could number the phases 0 - 100, one digit for ice concentration and the other for thickness, and then automatically define the phases that are present. Like this:
90 % ice cover (some 10 % of open water) ice of 20 cm thickness would be mkfluid="92". Due to python, it turns out as " 92 ", but I doubt the spaces matter.
I draw ice polygons as such:
<setmkfluid mk=" 80 " />
<drawprism mask="0">
<point x=" 245.67086659497593 " y="0" z=" 232.77605047495103 " />
<point x=" 245.46172876528348 " y="0" z=" 232.76075978287682 " />
<point x=" 245.25234027576667 " y="0" z=" 232.75272171018273 " />
<point x=" 245.02199585982353 " y="0" z=" 232.75435359606706 " />
...many more..
...And then the same with y="2"...
</drawprism>
And define phases as such:
<phase mkfluid=" 80 "> <rhop value=" 800 " /> <visco value="1.2" /> <tau_yield value="0.0001" /> <HBP_m value="100" /> <HBP_n value="0.8" comment="lt 1: shear thinning gt 1: shear thickening" /> <phasetype value="0" comment="Non-Newtonian=0 only option in v5.0" /> </phase>
However, when I try to run DualSPHysics, I get PhaseCount:14, and the numbers run from 0 to 13..
[Multi-phase configuration] ==: PhaseCount:14 PhaseCount:14 Phase 0 Rho......: 200.000000 Gamma....: 7.000000 Viscosity: 1.200000 ...etc...
Do I need to number the phases from 0 onwards and without gaps?
A related question is that I try to apply the same accinput to all the phases. The wildcard * seems to work, but does it really?
<accinput mkfluid="*"> <acccentre x="0.0" y="0.0" z="0.0" comment="Center of acceleration" /> <globalgravity value="0" comment="Global gravity enabled (1) or disabled (0)" /> <acctimesfile value="CaseForcesData_0.csv" comment="File with acceleration data" /> </accinput>
Thank you for any input you might have.
Debug Trace
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Comments
Hi,
On the multiphase solver: if I am not mistaken, we have restrict the mphase code to a maximum of 10 phases.
see JSphGpuNNker.cu "#define MAXNUMBERPHASE 10"
Can you please try and adjust you number of phases to 9 or 10?
on your XML script:
when you run gencase, please check the new xml file generated by gencase, you have a line similar to:
<particles np="21001" nb="1001" nbf="1001" mkboundfirst="10" mkfluidfirst="1">
and
<fixed count="1001" id="0-1000" mkcount="1" mkvalues="10" />
<fluid count="20000" id="1001-21000" mkcount="1" mkvalues="1" />
this will help you troubleshoot your problem.
Regards,
George
Hi, thank you for your answer!
I can confirm that just reordering the mk values doesn't help, but decreasing the number of phases does help. Thank you for the debug tips too.
Can I increase the MAXNUMBERPHASE safely?
Hi,
you can definitely try :)
I am not sure of the maximum no. of phases though, sorry
Cheers,
George