Upgrade Accelerator
This section provides instructions to change the software version on which Accelerator runs.
Often you will do this to switch all the components (vovserver, vovtasker, vovsh) to a newer version, but you may also switch the vovserver and vovtasker versions separately. For the discussion below, current refers to the version before the change, and new for the version after it.
- Cold Upgrade
- Used when you are also shutting down the Accelerator computers, as for making OS, hardware upgrades. All components will be on the new version.
- Hot Upgrade
- Used to replace vovserver while allowing jobs to continue to run on the current vovtasker version. vovserver will be on the new version, but vovtaskers stay on the current version.
- Rolling Hot Upgrade
- Used to allow the current software version to run jobs after the new version is installed and starts running jobs. This method is recommended when the normal workload consists of large-scale projects.
When choosing the destination for the downloaded software, be careful to select a non-destructive installation path. This ensures the current Altair Accelerator is not overwritten or otherwise damaged before the new software is installed and activated. Usually the new version will be installed as a sibling of the current version, such as /tools/rtda/2013.09 for the current and /tools/rtda/2016.09 for the new.