To create intermediate files in a directory other than the project directory, type:

Quantum can create its temporary work files in a directory other than that in which the job is running. The directory is named using the –td option on the command line:

This example tells Quantum to create temporary files in a subdirectory called temp in the project directory.

Creating temporary files in a different directory is one way of improving the performance of large jobs running under Windows. When the number of files associated with a job rises above 500, you’ll find that the job runs more quickly if the temporary files are created in a different directory. You’ll also find it more convenient to scan directories’ contents when the number of files in each one is reduced.

You might also find that using –td when creating a Quanvert database helps to keep the project directory clean of unwanted files. It is also useful if you need to do multiple Quantum runs to create the database. As long as you use a different temporary directory for each run, you can then combine the directories with qvmerge to create the Quanvert database.