3.3 OpenVMS Cluster Considerations

If you want to run DEC C on multiple nodes of an OpenVMS cluster, first check to see that you have the appropriate software license (see Section 1.3). Then perform the following steps after you install DEC C:

1. Enter the LICENSE LOAD command, as described in the OpenVMS License Management Utility Manual, to activate the license on each node in the cluster on which DEC C is to be executed.

2. Log in to the installation node and use the OpenVMS INSTALL Utility to determine whether DECC$COMPILER.EXE is a known image:

   $ INSTALL
   INSTALL> LIST SYS$SYSTEM:DECC$COMPILER.EXE
   

   If the output of the preceding LIST command shows DECC$COMPILER.EXE to be a known image, perform all of the following steps. Otherwise, perform all of the following steps except step 4b.

3. Log in to a node on the cluster.

4. Run the OpenVMS INSTALL utility as described in Section 3.5.2, with the following exceptions:

   1. After invoking the OpenVMS INSTALL utility, enter the following command:

         INSTALL> REPLACE SYS$LIBRARY:DCLTABLES.EXE
      

      This command updates the DCL tables. It should be entered on each node in the cluster, regardless of whether you activated the DEC C license (step 1) on all of the nodes.

   2. If DECC$COMPILER.EXE was established as a known image using the INSTALL utility, enter the following command:

         INSTALL> REPLACE SYS$SYSTEM:DECC$COMPILER.EXE
      

      This command replaces the INSTALL entry for DECC$COMPILER.EXE. It should be entered only on those nodes on which you activated the DEC C license in step 1. (In most cases, all of the nodes will be licensed.)

5. Repeat steps 3 and 4 for each node of the cluster.