As part of the continuing tuning measures, we have found a parameter
for Alsys Ada which will significantly reduce the disk I/O to the
users adalib during the compile process.  This parameter has been
updated in the Computer Science .adarc template file and users may
update their files by re-running "ulib csc ada_install".

The parameter is and its associated comments are as follows:

-- Set default memory to 10 Mb to prevent writing temporary files
-- to user's adalib during the compile step.
default.compile (memory=>10000);

Which tells the compiler that it may use a temporary data area of up
to 10 Mb for the compile precess.  The default for Alsys ada is 500 Kb
which resulted in significant I/O to the users adalib.

Changing to this parameter will result in much less I/O to the user's
account for temporary files (and less of a need for a quota increase
to handle such files) and less network traffic within the TCF cluster
of AIX machines.  In testing we have also discovered that Alsys Ada
will only use the amount of memory it needs below that limit.  Sample
programs showed an increase in compiler execution size of roughly
1 Mb.  This parameter had no effect on compile times in the samples
tested on a loaded system.

Please spread this information out to your classes so we may get it
implemented as soon as possible.  This tuning should result in lower
I/O requests for the AIX/370 systems and hopefully lower overall loads
in the TCF cluster.