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I noticed that there is a significant difference in analysis run times between the following types (with the identical finite element model information), when you perform analysis in ABAQUS:

1. Submit a CAE model to an analysis run. This takes 180 minutes to run.
2. Submit an input file to an analysis run. — This takes just 20 minutes.

So, here’s what you do to cut the analysis run time in ABAQUS, if you have a very large “orphan” model:

1. Update CAE model database with whatever information you’d like (if any). Then, in the Model tree: Analysis –> Job Manager, create a job, don’t run it, then choose Write Input, instead. This writes the input file in plain ASCII, to the working folder.
2. Now close the CAE model database, and start a new CAE session. With no model, go to Job Manager and choose the source for the run as Input file (and not Model); Submit the analysis for run¹.

To think that, this gives me so much more time in a day, is an understatement².

1. Make sure you define a good chunk of memory in the Analysis Input File Processor. I usually take two-thirds of the max system RAM; leave some for the OS :). Also, define ABAQUS standard memory cap if you’re using Standard analysis method. [←]
2. Thanks to the amazing ABAQUS Support for telling me that this is possible. [←]

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