COMSOL 5.2a Update 1 Hotfix for Cluster Computing

Released August 31, 2016

This hotfix fixes a problem in cluster computing introduced in COMSOL 5.2a Update 1. The hotfix is only applicable for large cluster simulations on Linux and Windows.

Contents:

  • Updating COMSOL Multiphysics
  • Updating COMSOL Server

Updating COMSOL Multiphysics

1

Check your version

  1. Start COMSOL Multiphysics.
  2. On the Help menu, click About COMSOL Multiphysics.
  3. Check that the version number is 5.2a (Build 199).
  4. Be sure to close all COMSOL® sessions before installing the update.
2

Download Update

In some browsers, such as Internet Explorer, you get a dialog box where you can click Run directly after download. Before clicking Run, make sure again that you have closed all COMSOL sessions. In other browsers, such as Chrome, you have to select the downloaded file and run it; see step 3 below.

3

Install

Before you proceed with the installation, make sure to exit any running COMSOL process.

Windows

Run the downloaded .exe-file to extract the update to the COMSOL 5.2a installation directory, for example C:\Program Files\COMSOL\COMSOL52a\Multiphysics.

Linux

Copy the downloaded .tar.gz-file to the COMSOL 5.2a installation directory:

cp comsol_5.2.1.199p1_linux.tar.gz [installdir]

where [installdir] is the root of the installation, for example /usr/local/comsol52a/multiphysics. Unpack it by the commands:

cd [installdir]
tar xvzf comsol_5.2.1.199p1_linux.tar.gz

Updating COMSOL Server

1

Check your version

Make sure that you run COMSOL version 5.2.1.199 or later. Open [installdir]/uninstall/fl.ver in a text editor to check your version. Be sure to close all COMSOL® sessions before installing the update.

If you have installed COMSOL Server as a service, make sure to stop this service. You can stop the COMSOL service using the following procedure:

  • Select the Services dialog box found on the Start Menu: Control Panel > System and Security > Administrative Tools > Services.
  • Right-click the COMSOL service and select Stop.
2

Download Update

In some browsers, such as Internet Explorer, you get a dialog box where you can click Run directly after download. Before clicking Run, make sure again that you have closed all COMSOL sessions. In other browsers, such as Chrome, you have to select the downloaded file and run it; see step 3 below.

3

Install

Before you proceed with the installation, make sure to exit any running COMSOL process.

Windows

Run the downloaded .exe-file to extract the update to the COMSOL 5.2a installation directory, for example C:\Program Files\COMSOL\COMSOL52a\Server.

Linux

Copy the downloaded .tar.gz-file to the COMSOL 5.2a installation directory:

cp comsol_5.2.1.199p1_linux_server.tar.gz [installdir]

where [installdir] is the root of the installation, for example /usr/local/comsol52a/server. Unpack it by the commands:

cd [installdir]
tar xvzf comsol_5.2.1.199p1_linux.tar.gz

4

Starting COMSOL as a service (Windows® only)

If you have installed COMSOL Server as a Windows® service, make sure to start this service after installation. You can start the COMSOL service using the following procedure:

  • Select the Services dialog box found on the Start Menu: Control Panel > System and Security > Administrative Tools > Services.
  • Right-click the COMSOL service and select Start.