Help with executing macros at specific timesteps during the solution run

Codophobia · April 25, 2014, 05:45

Hi,

I have a set of macros which I managed to output from the 'Calculation Activities' tab using the 'file/write-macros' command in the GUI.

Now, I want to execute each macro at specific timestep intervals, i.e. if I have 4 macros (w,x,y,z) and I run macro w for the first time at timestep 7600, I want it so that macro x runs a certain no. of timesteps after macro w, macro y a certain no. of timesteps after macro x, and so on. This would run as a continuous loop for as long the transient solution is running.

Is this possible ? And if so, how would I go about doing it ? Can I include some additional 'IF statements' or anything like that within the macro file itself or would I need to create a separate UDF file ? Are there any other ways of going about this ?
Thanks.

upeksa · April 28, 2014, 06:16

You can use a single UDF using if-statements and the following solver macros:

CURRENT_TIME
CURRENT_TIMESTEP
PREVIOUS_TIME
PREVIOUS_2_TIME
PREVIOUS_TIMESTEP
N_TIME
N_ITER

You can also use the general-purspose macro DEFINE_DETAT if necessary.

Check you UDF manual for further information.

Cheers

April 25, 2014, 05:45	Help with executing macros at specific timesteps during the solution run	#1
Codophobia New Member Join Date: Apr 2014 Posts: 2 Rep Power: 0	Hi, I have a set of macros which I managed to output from the 'Calculation Activities' tab using the 'file/write-macros' command in the GUI. Now, I want to execute each macro at specific timestep intervals, i.e. if I have 4 macros (w,x,y,z) and I run macro w for the first time at timestep 7600, I want it so that macro x runs a certain no. of timesteps after macro w, macro y a certain no. of timesteps after macro x, and so on. This would run as a continuous loop for as long the transient solution is running. Is this possible ? And if so, how would I go about doing it ? Can I include some additional 'IF statements' or anything like that within the macro file itself or would I need to create a separate UDF file ? Are there any other ways of going about this ? Thanks.

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April 28, 2014, 06:16		#2
upeksa Member Join Date: Jul 2013 Posts: 80 Rep Power: 12	You can use a single UDF using if-statements and the following solver macros: CURRENT_TIME CURRENT_TIMESTEP PREVIOUS_TIME PREVIOUS_2_TIME PREVIOUS_TIMESTEP N_TIME N_ITER You can also use the general-purspose macro DEFINE_DETAT if necessary. Check you UDF manual for further information. Cheers