[BRN]

Hello everyone,

I've been working on REEF3F for 1-2 weeks and I've encountered an error. I will share the screen shots here, I've made a reasearch about in forum. Some of the users also suffered the same issue.

When I started the tutorial simulation(s) ( Not all simulation give this error) I got these errors/warnings. But solver manage to start to computate the case and finishes the simulation and I can view it in Paraview. So it does not seem a problem but why this is happening, btw I have 6 processor? I have no idea. I will copy the texts here;

Thank you for your help,

Have a nice week.

Baran.

Error/Warning:

WARNING: Linux kernel CMA support was requested via the
btl_vader_single_copy_mechanism MCA variable, but CMA support is
not available due to restrictive ptrace settings.

The vader shared memory BTL will fall back on another single-copy
mechanism if one is available. This may result in lower performance.

Local host: BARANPOLAT
--------------------------------------------------------------------------

REEF3D (c) 2008-2023 Hans Bihs

:: Open-Source Hydrodynamics

v_230830

read ctrl

REEF3D::CFD

[BARANPOLAT:00050] 5 more processes have sent help message help-btl-vader.txt / cma-permission-denied
[BARANPOLAT:00050] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
initialize fdm
starting ini
creating objects
Ursell number: 192.007
MODULUS: 0.999 qq: 5001
WAVE TROUGH: 0.376095
wC: 2.10121 wR: 6.14716
Wave Tank: 5th-order cnoidal waves; wk: 0.641263 ww: 1.25664 wf: 0.2 wT: 5 wL: 9.79815 wdt: 0.4 kd: 0.256505
probepoint_num: 10
number of cells: 1600000
starting driver_ini
initializing solid...

[kamath]

are you using Ubuntu on windows (wsl/ wsl2)? just a warning, safe to ignore.
I have seen this on wsl, but not on wsl2.

[BRN]

Originally Posted by kamath

are you using Ubuntu on windows (wsl/ wsl2)? just a warning, safe to ignore.
I have seen this on wsl, but not on wsl2.

Hello again sir,

I am using Ubuntu application on Windows and It might me a wsl instead of wsl2. I ve used a command to learn it but it did not work. So if this error does not effect the efficiency or the results of the cases, then I think it is okay?