Parallel Engineering and Scientific Subroutine Library for AIX Version 2 Release 3: Guide and Reference

Migrating to Parallel ESSL Version 2 Release 2

No changes to your application programs are required if you are migrating from Parallel ESSL Version 2 Release 1.2 to Parallel ESSL Version 2 Release 2.

Support has been withdrawn for calling Parallel ESSL from HPF; as a result, the Parallel ESSL HPF libraries, HPF module, HPF IVP, and sample HPF programs are no longer provided.

The Parallel ESSL POWER2 and Thread-Tolerant POWER2 libraries are no longer provided. Existing applications that use these libraries will continue to run because appropriate symbolic links are created at install time to preserve binary compatibility. ¹

However, if you are creating new applications you should use:

• The Parallel ESSL SMP library, instead of the Parallel ESSL POWER2 Thread-Tolerant Library
• The Parallel ESSL Serial Library, instead of the Parallel ESSL POWER2 Library

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Customers that require the tuned POWER2 libraries for performance reasons have the option of retaining the Parallel ESSL Version 2 Release 1.2 POWER2 libraries when Parallel ESSL Version 2 Release 2 is installed. See the Parallel ESSL Install Memo for details.