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1077: COMSOL Installation Companion

This article walks you through installing COMSOL Multiphysics. This article summarizes the installation process. For complete installation and operating instructions, see the COMSOL Multiphysics® Installation and...
Version: All versions - Platform: All Platforms

1062: BDF, Generalized Alpha, and Runge-Kutta Methods

What numerical methods are available when using a Time-Dependent Solver? What are their relative benefits and when should I use them? The Time-Dependent Solver offers three different time stepping methods: The...
Version: All versions - Platform: All Platforms

1059: Error: Licensed number of users already reached

I have a floating network license and get an error message dialog box  containing the phrase: Licensed number of users already reached I am quite sure that nobody else on the network is using the license. The...
Version: All versions - Platform: All Platforms

1058: How to administrate multiple floating network license files on one...

You can control multiple COMSOL network licenses from the same license server. As a license administrator, you can get full control over who is allowed to use each of the licenses on the network. In this solution we...
Version: All versions - Platform: All Platforms

1056: Warning: New constraint force nodes detected

I get this error message: Warning: New constraint force nodes detected. What does it mean? As is indicated in the message, this is a warning message and not an error message, meaning that your model may be just fine....
Version: All versions - Platform: All Platforms

1038: Using symmetries in COMSOL Multiphysics

How do I take advantage of the symmetries in my COMSOL model? Using Symmetries to Reduce Model Size By using symmetries in a model you can reduce its size by one-half or more, making this an efficient tool for...
Version: All versions - Platform: All Platforms

1030: Error: "Out of memory"

I get an error message, that contains the words Out of memory, for example: Out of memory during LU factorization. or Out of memory during assembly Background Before resolving this issue, you should go through...
Version: All versions - Platform: All Platforms

1022: Updating the COMSOL License Manager

When starting COMSOL Multiphysics, I receive this error message: Could not obtain license for COMSOL Multiphysics GUI. License error: -25 License server system does not support this version of this...
Version: All versions - Platform: All Platforms

1016: Overview of License borrowing

How do I borrow license keys on a floating network license? License borrowing means that you can use COMSOL (for a limited time) with a Floating Network License (FNL) without a network connection to the license server....
Version: All versions - Platform: All Platforms

1001: Running COMSOL® in parallel on clusters

This solution describes how you enable distributed parallelization (cluster jobs) in COMSOL Multiphysics®. COMSOL supports two mutual modes of parallel operation: shared-memory parallel operations and...
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