code_saturne User's Forum

Hello,

The old Fortran "divmas" subroutine was the equivalent of the current cs_divergence function, so assuming the reference uses the output od that function for the "divmas" term, you could use the output of cs_divergence to compute that.

Hoping this helps (as I have not delved into the theory for that part, but only in the code's naming changes).

Best regards,

Yvan

Hi Yvan,

Thanks for your reply. Do you have any example using cs_divergence?

I implemented it based on the general documentation from the source file, but the simulation freezes at the first step and stops with the following error:

SIGSEGV signal (forbidden memory area access) intercepted!
Call stack:
1: 0x402cb6 <cs_user_source_terms+0x756> (cs_solver)
2: 0x14d1786822c9 <covofi_+0x11f9> (libsaturne-8.0.so)
3: 0x14d17880f499 <scalai_+0x1185> (libsaturne-8.0.so)
4: 0x14d178815c1b <tridim_+0x4401> (libsaturne-8.0.so)
5: 0x14d17864e965 <caltri_+0x17fe> (libsaturne-8.0.so)
6: 0x14d179798252 <main+0x762> (libcs_solver-8.0.so)
7: 0x14d171bb329d <__libc_start_main+0xef> (libc.so.6)
8: 0x401e2a <_start+0x2a> (cs_solver)
End of stack

I’ve attached the source file and the run_solver.log for reference. Could you please suggest what might be causing the segmentation fault?

Best regards,
Ximeng

Hello,

For this, the bet solution is probably to use a debug build (compiled with --enable-debug), and run it under a debugger to pinpoint the issue (see https://www.code-saturne.org/documentat ... _debugging).

Best regards,

Yvan