Endlich einmal ein Dokument für die Einstellung der Deklarationen. Mit der Voreinstellung unter AIX nützt CATIA V5 nur den Adressbereich bis 1GB Mem aus. Mit dieser nachfolgenden Installationsanweisung geht es über diese Grenze hinaus bis 2GB. Wie immer gilt, was unten auf unserer Website zum Thema Nutzung der Scripts und Informationen steht.

Accessing more than 1.0 of data on AIX

This section describes necessary settings to get access to more than 1.0 GB on AIX for allocations of data within a V5 process.Background:By default, Version 5 processes on AIX can allocate up to 1.0 GB. It is possible to override thedefault allocation capabilities up to 2.0 GB. Such a capability requires additional tunings in order tobe effective :

To get access to more than 1.0 GB for allocating data, the X server must be configured to use extended shared memory. To enable this support, do the following :

1. Modify /usr/lpp/X11/defaults/xserverrc shell script to add :

EXTSHM=ON

export EXTSHM

before execution of the X process in the shell script (for example, just before environmentvariable EXTENSIONS is set in the shell script).

2. Reboot workstation or restart the X server to take modification into account

Version 5 required customizations

The capability to allocate more than 1.0 GB on AIX is controlled by a new environment variable :

V5MEM. This environment variable can take an integer value from 5 to 8, and controls the number of 256 MB segments that Version 5 can allocate. By default, this environment variable is not set.When set, the environment variable is checked by catstart shell script, which will set theenvironment accordingly.

When V5MEM is not set, Version 5 will be able to allocate up to 1.0 GB (operating systemcustomizations are not required)

When V5MEM is set, operating system customizations are required; V5MEM=5 will give access to 1.25 GB; V5MEM=8 will give access to 2.0 GB of address space for data allocatedduring the Version 5 session. In all cases, it is recommended to have the paging space sized accordingly.

Additional Operating System considerations

When operating in a Japanese environment, setting of the environment on AIX 4.3 requires PTF for APAR IY30921 (PTF for APAR IY31016 on AIX 5.1)

When operating on a GXT4000P or GXT6000P, PTF for APAR IY18593 is required (on these graphic adapters, the X server will fail to start when EXTSHM=ON is added to/usr/lpp/X11/defaults/xserverrc.