Release Notes for
                 Compaq KAP C/OpenMP Version 4.2 for Tru64 UNIX
                                   June 2001






     1  PURPOSE OF RELEASE NOTES


     These release notes provide information about  KAP  C/OpenMP  software
     and  user  documentstion.   Please read the release notes before using
     the product.

     This version of KAP C has been tested on Digital UNIX 4.0D, 4.0F,  and
     Tru64 UNIX 5.0A and 5.1.

     To  take  advantage  of  the  parallel  decomposition  and   automatic
     generation  of  OpenMP  parallel  directives you need a version of the
     Compaq C compiler  that  can  process  the  OpenMP  directives.   That
     capability  is available in the C compiler distributed with Tru64 UNIX
     5.x and in the Developers ToolKit for Digital UNIX for 4.0D and 4.0F.



     2  CHANGES SINCE KAP C/OPENMP VERSION 4.2

     This is a maintenance release, which includes a number  of  fixes  and
     improvements but no significant functional enhancement.

     Version 4.2 includes changes in the following areas:

      -  The KAP/C command line option "-restrict" is enabled  by  default.
         It  allows KAP/C to parse the C compiler qualifiers "restrict" and
         "restrict".This language feature can help  KAP/C  better  optimize
         loops  that  contain subscripted objects that have this qualifier.
         "-norestrict" disables  parsing  of  the  restrict  and  _restrict
         qualifiers.

      -  The new -tablesize=<integer> switch has been  implemented  in  the
         KAP  C  driver.   The  value specified in the -tablesize switch is
         compared to the product of the number of statements and the number
         of  variables  referenced  in  a  given  program  unit.  When this
         product is greater than the tablesize value, a "program-too-large"
         message will be issued stating the required tablesize.




     3  CHANGES SINCE KAP C/OPENMP VERSION 4.0

     This is a maintenance release, which includes a number  of  fixes  and
     improvements but no significant functional enhancement.

     Version 4.1 includes changes in the following areas:

Release Notes for KAP C/OpenMP Version 4.2                      Page 2


      -  We have fixed a problem with deference operators that  caused  the
         memory management optimizer to fail.

      -  KCC  failed  to  correctly  process  some  command-line   switches
         intended for the C compiler.  This problem has been fixed.

      -  We have corrected a data-structure memory leak within KAP/C.

      -  We have corrected a dead-code elimination  problem  involving  the
         hoisting of invariant-IFs from loops.

      -  We have corrected a "-tune=" switch-coordination  problem  between
         the  C  compiler  and KAP/C.  Now "-tune" outside the "-ckapargs="
         switch applies to both the kapc translator and the C compiler.

      -  The screen output from the installation script and  the  IVP  have
         been modified.

      -  An error caused by blank padding of the  subprogram  name  in  the
         processing  of  the  "-inline="  and "-noinline" switches has been
         fixed

Release Notes for KAP C/OpenMP Version 4.2                      Page 3


      -  We have revised the manpages and merged the content  of  the  kapc
         manpage with kcc.  The kapc manpage is no longer distributed.  The
         commands

           > man kapc
           > man kcc

         both point to the new kcc manpage.

      -  The User Guide, Installation Guide and Quick Reference  Card  have
         been been updated for this release.




     4  SUPPORT AND FEEDBACK

     You can obtain support for this product and give feedback as follows:

      -  Compaq Services

         A variety of  service  and  support  options  are  available  from
         Compaq.   For  more  information,  contact your local Compaq sales
         office.

      -  Compaq KAP home page on the World Wide Web

         You can access this page by using your favorite Web browser.   The
         page's URL is:

           http://www.compaq.com/hpc/software/kap.html

      -  Reader's Comments

         Compaq appreciates your comments.  If you want  to  comment  about
         any Compaq KAP, please send e-mail to:

           kap-support@compaq.com




     5  TRADEMARK INFORMATION

     Compaq, the Compaq logo, Compaq C, and Compaq Fortran,  Registered  in
     U.S.  Patent and Trademark Office.

     KAP is a trademark of Intel Corporation.

     UNIX is a registered trademark of The Open Group.

     All other  product  names  mentioned  herein  may  be  trademarks  and
     registered trademarks of their respective holders.



                   Copyright 2001 Compaq Computer Corporation