Service Status

Service Status

Issue Details (Updated 10/03/26 - for 11.7.02L)

Description: We are aware of an issue affecting SATURN programs running on devices that have installed the Windows 11, version 24H2 update. In some cases, programs may crash unexpectedly. This does not affect model assignment or output results otherwise.

Current Status: The SATURN team has found two separate issues. Work arounds have been identified for these.

What You Need to Do

If you are experiencing any unexpected crashes when running SATURN on Windows 11 (24H2), it could be one of the following:

1. Underflows - This can be resolved by setting the environmental variable "set SALFENVAR=mask_underflows". This resolves most common issues.

Update: SATURN 11.7.02L programs are not affected because they are compiled with the latest compilers which have been corrected for this. The latest SatWin automatically applies this environment variable, so older SATURN versions launched through SatWin will also avoid this issue.

2. Overflows - If an issue is not fixed by the workaround described above, more complex analysis will be required.

Update: This issue still could affect 11.7. However, where these have happened in the past, we have added internal traps to correct the problem. Hence, 11.7.02L is less likely to hit these rare problems than older versions.

To report a problem, please contact the helpdesk and provide the following information:

• Description of the Issue: Clearly describe the problem you are experiencing. Include any error messages or unusual behaviour.
• Steps to Reproduce: List the steps you took before encountering the issue. This helps us understand how to replicate the problem.
• Software Information: The SATURN product experiencing the issue.
• Screenshots or Logs: Attach any screenshots or log files that might help us diagnose the issue.

For more detailed information see App-E, bug IDs 248, 248a.

Thank you for your cooperation and patience as we work to resolve this matter.