All Solutions

Error: Failed to connect to AutoCAD

Solution Number: 1123 Versions: All versions

When I synchronize the geometry between AutoCAD LT and COMSOL Multiphysics I get the error message: Failed to connect to AutoCAD. Please make sure AutoCAD is running. AutoCAD LT does not support third party add-ins. ...


Selecting hardware for clusters

Solution Number: 1116 Versions: All versions

This knowledge base outlines some hardware recommendations if you plan to set up your own compute cluster for running distributed COMSOL jobs. Depending upon the type of problems that you want to solve you will want to ...


COMSOL does not start with the latest MATLAB version

Solution Number: 1113 Versions: All versions

I have installed a new MATLAB version, but running COMSOL with MATLAB keeps opening the older version of MATLAB. You need to manually update the MATLAB root directory path. In the COMSOL Desktop, go to the Options ...


How to recover your work from an interrupted simulation

Solution Number: 1112 Versions: All versions

This knowledgebase describes how to benefit from the recovery feature in COMSOL. This is particularly useful if you have a long computation that for some reason was interrupted at some point, maybe due to system ...


Stabilization schemes in COMSOL

Solution Number: 1104 Applies to: CFD Module, Chemical Reaction Engineering Module Versions: All versions

How can I see which stabilization schemes are used by COMSOL Multiphysics in transport physics interfaces such as Single-Phase Flow and Transport of Diluted species? Numerical solutions of transport equations can ...


Structural Contact Modeling Guidelines

Solution Number: 1102 Applies to: MEMS Module, Structural Mechanics Module Versions: All versions

This article contains guidance for solving models that include structural contact, and the procedures that should be followed to achieve a converged solution. Background Structural contact modeling is a highly non ...


Uploading large files to your support case

Solution Number: 1098 Versions: All versions

Email servers may reject larger file attachments. If you want to provide COMSOL staff with model files larger than 10 MB, you can create an FTP directory to upload them. First, see if you can reduce the size of the ...


COMSOL and Multithreading

Solution Number: 1096 Versions: All versions

This solution describes how COMSOL takes advantage of multicore computers. COMSOL supports two mutual modes of parallel operation: shared-memory parallelism and distributed-memory parallelism (cluster support). Shared ...


Error: Failure loading MATLAB libraries. This model requires that MATLAB is available.

Solution Number: 1093 Versions: All versions

When trying to run a COMSOL model, the following error message appears: Failure loading MATLAB® libraries. This model requires that MATLAB is available. When calling external MATLAB functions, COMSOL automatically ...


Installing COMSOL on Linux

Solution Number: 1086 Versions: All versions

This solution provides some tips and troubleshooting guides for installation on the Linux platform. For basic installation information, please refer to the COMSOL Multiphysics Installation Guide ##Verify that a ...