UDF and /bigobj error

ansys_matt · June 21, 2019, 16:27

Hello,

I have run into an error when compiling a very large UDF. The error looks like this:

fatal error C1128: number of sections exceeded object file format limit: compile with /bigobj

If you do some searching you will see that the /bigobj compiler flag can be used to overcome this error, but I am not sure how to get ANSYS to recognize it.

One approach I thought of was to compile the udf directly in Visual Studio instead of having ANSYS compile it by calling Visual Studio under the sheets. But I am not sure what I need to do to compile directly in VS and then use the object file in ANSYS.

Does anyone know how to do this?

AlexanderZ · June 23, 2019, 22:42

split your UDF into several files

best regards

June 21, 2019, 16:27	UDF and /bigobj error	#1
ansys_matt Member Join Date: Feb 2013 Posts: 60 Rep Power: 13	Hello, I have run into an error when compiling a very large UDF. The error looks like this: fatal error C1128: number of sections exceeded object file format limit: compile with /bigobj If you do some searching you will see that the /bigobj compiler flag can be used to overcome this error, but I am not sure how to get ANSYS to recognize it. One approach I thought of was to compile the udf directly in Visual Studio instead of having ANSYS compile it by calling Visual Studio under the sheets. But I am not sure what I need to do to compile directly in VS and then use the object file in ANSYS. Does anyone know how to do this?

June 23, 2019, 22:42		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	split your UDF into several files best regards