Creo Simulate > Creo Simulate > Running Solvers > Native Mode Solvers > Setting Up a Run > Directory for Temporary Files
  
Directory for Temporary Files
Specify the directory where you want Creo Simulate to place temporary files created during the run.
Creo Simulate places temporary files in a directory called study.tmp (study is the name of the design study you are running), and places study.tmp in the directory for temporary files you specify here.
The Run Settings dialog box initially displays the name of the directory you specify using the sim_run_tmp_dir configuration option, or it displays the current working directory if you do not set the configuration option. The directory you specify appears the next time you open the dialog box.
As a general guideline, you should have at least 20 to 30 megabytes of disk space available for temporary files. Creo Simulate deletes these files when it completes the run.
You can specify multiple directories for your temporary files using the -w option of the msengine command.