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Typical error message found in the LUSAS Solver text output file (*.OUT):

***ERROR*** INPUT/OUTPUT ERROR ON SCRATCH FILES : POSSIBLE CAUSE IS LACK OF DISK SPACE

Most common causes & links to solutions 

This error message is only invoked when using the FastSolver.  Possible causes with suitable solutions are listed below:

PC settings may cause temporary files to clash with virtual memory

1. Relocate or re-size PC virtual memory

2. Relocate LUSAS temporary files

3. Relocate Windows temporary files

4. Optimise LUSAS memory usage (reduce cache/ NPGS)

Still encountering problems?  Try the database error checklist

More on cause & theory links

More on how LUSAS uses PC resources  

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