Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Qsys is very slow on my 12 core Xeon machine!

Hi,

I installed Quartus 10.1 subscribed version (in Windows 7) on my Dell Precision T7500 which has 12 core (hyper-threaded to 24 cores) with 12GB of memory.

The Qsys beta seems a good way to hierarchically manage my project, so I decide to give it a try. However, when I try to generate the synthesis hdl from the Qsys tutorial design example, it took more than 20min to generate the design. I checked out the 'Windows task manager', only to find that the 'java*32' process is barely using any cpu cycles while generating the design.

I tried the same design on my laptop with core-2-duo 2.6Ghz and 8GB memory, the generation finishes within minutes. It seems that my duo-core laptop outperform the 12-core machine by 10x for Qsys.

I am pretty confused now, could the problem be Qsys? or the JVM not able to utilize 12Core? or some underlying locking mechanism that prevent Qsys from making progress?

Any help is appreciated.

Han

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    I've had similar issues every now and then. I haven't been able to track them down at all except that when I disable my antivirus software (Kaspersky) I get lightning fast operation back on my computer..

    It has to do sometimes with the firewall and sometimes with the proactive defense and other times something else.. It's quite frustrating as it seems some module executing is being tracked by antivirus program.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Interesting, I am not sure if I am having a similar problem as you. The windows 7 system is freshly installed, with all updates. I have not installed any antivirus program nor firewall, except the one comes with windows 7.

    The slow speed on design generation by QSys is rather stable. It always slow no matter what I do. I am still looking for why. I might just switch back to sopc builder for now, and wait for proper version of QSys.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Did you ever solve this?

    I have a very slow system generation too, which was quicker some time ago.

    I noticed that quartus_sh.exe is consuming the CPU core (I'm only allowed one core as I'm using Quartus II - Web). So it must run a busy-loop on something as I thought quartus_sh only dispatches the rest of the executables?