If you set solver RAM (solram) too low, performance suffers because Creo Simulate must transfer data between machine RAM and disk files many more times than with a larger setting. Because disk drives transfer data roughly 100 times slower than machine RAM, excessive disk I/O can degrade system performance.

Performance may degrade significantly if you set solram to 0.1 times machine RAM or less. In general, do not set the solram allocation to below 10% of machine RAM unless you have severe memory constraints and you are prepared to accept substandard performance. A solram allocation of 25% of machine RAM is preferable—a setting of 50% of machine RAM is usually optimal. For guidelines on setting the solver RAM allocation, refer to Guidelines for Allocating RAM for Solver and Element Data.

Return to Guidelines for Setting Solram or Troubleshoot High Elapsed Run Times.