Not that it necessarily helps, but fyi, I have used the 32-bit version of RHEL-WS v3 with OpenDX 4.3.2 on Intel hardware and I have not seen this problem.  But the rpm was compiled under RH9 for Intel/32-bit.  If you recompiled, you would still be limited to 2 GB out of the box.



Steve Cousins <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]

09/13/2004 01:23 PM
Please respond to opendx-users

       
        To:        opendx <[email protected]>
        cc:        
        Subject:        [opendx-users] Out of Memory, cannot expand data segment



I have a machine with 2GB of RAM but I am repeatedly getting a message:

                "Out of Memory: cannot expand the data segment by 25165824 bytes,
current size is 930216680 bytes"

I've tried:

                1. setting the DXMEMORY variable to 1700000000
                2. setting the DXMEMORY variable to 1700
                3. using "dx -memory 1700" to start DX
                4. disconnecting from the server and then reconnecting while setting
the Memory Size option to 1700 MB.

I still can't get DX to run with more than 930 MB of RAM.  I know that
the stock answer is to reduce the amount of data that DX is working with
but I don't think that is an option for what I want to do.

The setup of this machine is:

                Opteron 148 CPU
                2 GB of RAM
                4 GB of swap space
                Redhat Enterprise Linux Workstation (x86_64) release 3
                OpenDX 4.3.2 installed using the opendx-4.3.2-1.rh9.rpm

Maybe this is a limitation of how this version was compiled.  If I
compile the source myself is there an option for setting the amount of
memory that can be used?

Thanks for your help.

Steve
--
______________________________________________________________________
Steve Cousins, Ocean Modeling Group    Email: [EMAIL PROTECTED]
Marine Sciences, 208 Libby Hall        http://rocky.umeoce.maine.edu
Univ. of Maine, Orono, ME 04469        Phone: (207) 581-4302

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