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Altera_Forum's avatar
Altera_Forum
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14 years ago

problem of large design with Qsys

Hi all,

I'm designing a network of processor (Nios II) with Qsys 11.1.

There are 32 niosII in my design and I use the ip-generate command-line.

The issue is Qsys can't generate the sopcinfo file:

--- Quote Start ---

Info: system: Done system" with 98 modules, 4296 files, 88115683 bytes

Error: Error writing sopcinfo report java.lang.OutOfMemoryError: Java heap space

Info: ip-generate succeeded.

Info: Finished: Create HDL design files for synthesis

--- Quote End ---

Anyone has idea? Thanks!

ps: I tried to close and reopen Qsys

16 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    Thank you Aprado for this quick responce.

    But I'm not very confortable with Java.

    Could you tell me where and how configure my JVM correctly?

    Thanks!
  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    ok I tried to find a solution to configure the JVM.

    the switch to expand java heap size memory is -Xmx2048m where 2048 is the size of maximum heap memory I want to allocate.

    The issue is where can I use this switch?

    In some examples I saw this switch is used like a parameter of the application.

    The application that I want to expand heap size memory is ip-generate.

    So I tried with a command-line like that: 

    ip-generate -Xmx2048m --project-directory=D:/myproject --output-directory=D:/myproject/synthesis/ --file-set=QUARTUS_SYNTH --report-file=sopcinfo:D:/myproject/system.sopcinfo --report-file=qip:D:/myproject/synthesis/system.qip --system-info=DEVICE_FAMILY="Stratix IV" --component-file=D:/myproject/system.qsys
    But it makes an error:

    --- Quote Start ---

    Error: Unrecognized switch Xmx2048m

    --- Quote End ---

    I forgot to specity that I'm working on windowsXP-64bit and so I use NiosII 11.1 command shell to launch this command-line.

    Thanks for your responce.
  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    I'd guess ip-generate is some kind of wrapper ??

    You need to find the incantation that acually runs the jvm itself.

    If you type at the shell prompt:

    $ type ip-generate

    the shell should tell what it executes when you run ip-generate.
  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    Hi Dsl,

    ip-generate is the application used by Qsys (new version of SopcBuilder) to generate vhdl or verilog files from a qsys project. ip-generate can optionnaly create the sopcinfo file used by NiosIISBT to create the NiosII application.

    The ip-generate command-line call an executable file so I can't see what it's done inside.

    When I type in the Shell:

    --- Quote Start ---

    $ type ip-generate

    --- Quote End ---

    I just have the path of the executable called:

    --- Quote Start ---

    ip-generate is /cygdrive/c/altera/11.1/quartus/sopc_builder/bin/ip-generate

    --- Quote End ---

    Do you know an other way to to find the incantation ?

    Thanks
  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    Long shot but maybe an enviorment variable _JAVA_OPTIONS="-Xmx2048m" will work. If it doesn't remember I said long shot :)

  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    On a unix system you could arrange to make a shell script be run instead of the jvm (either by putting it earlier in $PATH, or renaming the real jvm) containing:

    # !/bin/sh

    real_jvm -Xmx2048m "$@"

    but I suspect that won't work on cygwin - does depend on exactly how the binary (which is probably using the cygwin library) actually starts the jvm.
  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    I have good and bad news!!

    the good one:

    I fund how to configure the jvm.

    Te bad one:

    you have to patch ip-generate.exe

    open ip-generate.exe in a text editor

    This file is in:

    --- Quote Start ---

    QUARTUS_ROOT_DIR/quartus/sopc_builder/bin

    --- Quote End ---

    Research -Xmx500m

    replace by -Xmx1024m

    and delete a "NULL" juste after

    Thanks for your help
  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    Hmmm.... if they are hard-coding the parameter into the generated command line, then attempts to set the default using environment vars will fail.

    Probably better to set to -Xmx999m to avoid changing the length of the string.

    Might even work if you replace that parameter with spaces and set the jvm's default from the environment.