HP aC++/HP C A.06.20 Release Notes

3 Installation Information
Read this entire document and any other release notes or readme files you may have
before you begin an installation.
To install your software, run the SD-UX swinstall command. This invokes a user
interface that will lead you through the installation.
For more information about installation procedures and related issues, refer to Managing
HP-UX Software with SD-UX and other README, installation, and upgrade
documentation provided or described in your HP-UX 11.x operating system package.
Depending on your environment, you may also need documentation for other parts
of your system, such as networking, system security, and windowing.
Hardware Requirements
IMPORTANT: Compiling files at optimization level 2 (-O or +O2) and above increases
the amount of virtual memory needed by the compiler. In cases where very large
functions or files are compiled at +O2, or in cases where aggressive (+O3 and above)
optimization is used, ensure that the maxdsiz kernel tunable is set appropriately on
the machine where compilation takes place.
HP recommends a setting of 0x100000000, or 4 GB (the default for this parameter is
0x100000000, or 4 GB) for "maxdsiz_64bit" in such cases. Updating the
"maxdsiz_64bit" tunable will ensure that the compiler does not run out of virtual
memory when compiling large files or functions.
In addition, "maxssiz_64bit" should be set to 128 MB for very large or complex input
files. (Normally a "maxssiz_64bit" setting of 64 MB will be sufficient.)
HP recommends not reducing the maxfiles setting below the default value of 2048.
See the kctune man page for more information on how to change kernel tunable
parameters.
HP aC++ requires approximately 125 MB for the files in
/opt/aCC
The other components require approximately:
40 MB for WDB
105 MB for u2comp/be
90 MB for HP Caliper
185 MB for HP Code Advisor
For more precise sizes, use the command:
/usr/sbin/swlist -a size B9007AA
Hardware Requirements 31