HP OpenVMS Systems

Seeks to increase memory usage?

» close window

The Question is:

 
We added an additional 4GB of memory to our system  (before there were 256 MB,
 the machine is a 4-way server).  We increased the system parameters
 accordingly to have access to at least 2 GB. The problem is that we cannot go
 beyond 1 GB (using FORTRAN90 o
r C). So what to do to have access to the remaining memory?   WSMAX in
 modparams.dat for instance we set to WSMAX=4000000. In this file there is no
 PHYS_MEMORY  entry.  Upon SHOW MEMORY the total memory (4 GB + 256 MB) is
 recognized. Thanks in advance for
 your answer.
 
 

The Answer is :

 
  Assuming you have followed the steps in the FAQ (section MGMT11), you
  will want to contact the Compaq Customer Support Center, as details
  of process pagefault activity, working set sizes, and the numbers of
  processes running will all be of some interest.  (Access to physical
  memory is generally entirely transparent, and entirely dependent on
  system load.)
 
  If you require more than one gigabyte (1 GB) of virtual memory within
  specific a process (as differentiated from one gigabyte of physical
  memory, or the amount of physical available to the process working
  set based on the working set parameter), you will want to investigate
  the use of 64-bit addressing as documented in the OpenVMS manual set.
 

  

     

     
answer written or last revised on ( 6-FEB-2001 )
     
» close window