[Simulation Crashed] when IVS turn on

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jack zhang
Posts: 5
Joined: Sat Dec 30, 2017 9:43 am

[Simulation Crashed] when IVS turn on

Postby jack zhang » Mon Jul 29, 2019 9:37 am

Dear Tim,

I have two cases for street canyon simulation; one for IVS OFF; the other for IVS ON.
The former is all fine. However, when the case using IVS scheme was run, the following error turned out.


"calculating hires radiation field for agents
finished 0%
updating radiation :reflection and longwave fluxes
"
Log window

$$ ENVI_MET Flow model
$$ SOR Solver: Compatibility Mode
$$ 3D Initialisation: Running Flow Diastrophy
100% [1 st] remaining div: 0.00000 dt=0.10 (OK)
50% [1 st] remaining div: 0.00000 dt=0.10 (OK)
0% [1 st] remaining div: 0.00000 dt=0.10 (OK)
$$ 3D Initialisation: Flow Diastrophy finished
** Terminating thread 14040 **
** Thread raised exception: [EAccessViolation] Access violation at address 0000000000B4989D in module 'envimet4.exe'. Read of address FFFFFFFFFFFFFFFF **


what's the possible causes?

Jack

Tim
Posts: 695
Joined: Mon May 15, 2017 3:46 pm

Re: [Simulation Crashed] when IVS turn on

Postby Tim » Mon Jul 29, 2019 11:50 am

Hi Jack,

It is hard to tell why the error occurs. My test simulations with IVS ran successfully. Did you restart this simulation multiple times to see if the error occurs persistently?
If you do not use IVS in Memory, please enable this option and try again. If it is already enabled and the error still persists, you could check the RAM usage and check if it shows an overflow. Then, the model area might be too big or rather the RAM is not sufficient to run the simulation.
If none of this helped, you may zip and upload SIMX and INX and I will debug it.

Best regards,
Tim

jack zhang
Posts: 5
Joined: Sat Dec 30, 2017 9:43 am

Re: [Simulation Crashed] when IVS turn on

Postby jack zhang » Tue Jul 30, 2019 2:43 am

Hi Tim,
I've tired serveral times. The problem was not solved.
However, everything goes well with last version(4.4.2) of envi-met. So, I've uninstalled the 4.4.3 one and re-run my simulation.
Anyway, thank you for all your time.
Jack

Tim
Posts: 695
Joined: Mon May 15, 2017 3:46 pm

Re: [Simulation Crashed] when IVS turn on

Postby Tim » Fri Sep 13, 2019 8:10 am

Hi Jack,

We finally found the bug which occurred in your IVS simulation! We fixed it and released an updated version. You may download it from our website.

Best regards,
Tim


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