Binder Manual (G06.27+, H06.04+, J06.03+)

Introduction
Binder Manual—528613-004
1-8
OCA Translation Mode
equivalent. These accelerated object files can run on both TNS/R and TNS/E systems,
although TNS/R systems ignore the Itanium code.
OCA can process bound, executable object programs generated by B40 and later
versions of the C, COBOL85, FORTRAN, Pascal, and TAL compilers. OCA only
processes executable object programs that run in the Guardian environment. (You
cannot accelerate object programs generated by the COBOL 74 compiler.)
OCA Translation Mode
On TNS/E systems, TNS objects are not run in accelerated mode by default.
You must explicitly accelerate your TNS program as part of the build or install process.
You are immediately alerted of any error conditions.
If you have an accelerated object (with the corresponding IPF region) and no longer
want it accelerated, use the Binder CHANGE OCA ENABLE OFF command to disable
acceleration. See CHANGE Command on page 3-15. See also the STRIP Command
on page 3-75.
Cross-Platform Acceleration
OCA is supported on D-series, G-series, and H-series systems, enabling you to
accelerate TNS object files on any NonStop platform for execution on the TNS/E
platform. (A file with only a TNS region only will run slowly in interpreted mode on the
TNS/E platform). The TNS/R acceleration equivalent, Accelerator enables you to
accelerate TNS object files on any NonStop platform for execution on the TNS/R
platform. Having both accelerators available on both platforms enables you to use
either the TNS/R or TNS/E platform to create files that can be executed with improved
performance on either platform.