Guidelines for OpenVMS

This following topics provide information that is specific to OpenVMS platforms.

Supported Platforms and Installation Packages

TIBCO Enterprise Message Service is available on the OpenVMS platform listed in the following table.

For supported versions and the latest changes, see the readme.txt file.

OpenVMS Distributions
Platform Hardware Platform Installer Package Suffix Notes
OpenVMS HP Integrity/Itanium, 32-bit vms_ia64.zip Supports the C client library only.

Additional Information for OpenVMS Programmers

There is some additional information on compiling and multi-threading that can be useful to VMS programmers.

Compile

On OpenVMS platforms, EMS programmers must define the C-compile command appropriately.

For the VSI C compiler: 

$ CC :== CC/FLOAT=IEEE/IEEE_MODE=UNDERFLOW_TO_ZERO -
/PREFIX=ALL/INCLUDE_DIRECTORY=("/tibems/include",[])

Link

EMS API libraries are multi-threaded, so OpenVMS scheduler upcalls can yield significant performance improvements: 

$ LINK/THREADS_ENABLE=UPCALLS