|October 30, 2013, 12:04||
Udf segmentation violation
Join Date: Jan 2013
Location: Brussels, Belgium
Posts: 11Rep Power: 6
I'm trying to write down a simple UDF which will calculate the pressure time derivative for each cell and time step and will also assign a zero value to the z velocity. The pressure time derivative and z-velocity value will also be saved as two new variables.
I managed to compile and hook the function. However, when running the calculation I always get a SEGMENTATION VIOLATION and the simulation is terminated.
The UDF I have coded is the following:
real p1, p2, dt=0.05;
/* Read pressure from previous and second previous time steps */
p1 = C_P_M1(c,t);
p2 = C_P_M2(c,t);
C_UDMI(c,t,0) = (p1 - p2) / (dt);
/* Assign value zero to uz */
C_UDMI(c,t,1) = 0.;
Should I have looping in cells and threads?
I tried without the loops and still have the same problem.
Additionally, I am running in parallel. Might the code need to be parallelized?
|Thread||Thread Starter||Forum||Replies||Last Post|
|udf wall distance segmentation violation||gento||FLUENT||1||April 15, 2016 15:59|
|Udf segmentation violation||dany_@||Fluent UDF and Scheme Programming||2||July 23, 2013 05:00|
|UDF segmentation violation error||be89||Fluent UDF and Scheme Programming||1||December 21, 2012 04:07|
|DPM UDF - Segmentation Violation & Stack Backtrace||Prashanth||Fluent UDF and Scheme Programming||4||July 10, 2012 10:39|
|udf segmentation violation when hooked||jjchristophe||Fluent UDF and Scheme Programming||9||June 25, 2012 05:46|