Hi maycondouglasd, which TensorRT code are you using? If it is from jetson-inference, try changing this line in the code to true to disable FP16:
//mOverride16 = false;
mOverride16 = true;
You may also want to delete the previous engine’s .tensorcache if you think the changes aren’t taking effect, although this scenario should already be accommodated for.
Which program are you using to test? Try enabling TensorRT layer profiling to determine what is happening at the network level (see this line of code from imagenet-console).