Re: [OpenCyc-devel] Cyc engine

[<dm...@us...>]

This is what I used

-server -Xmx7g -Xms4g -XX:MaxPermSize=256m -XX:+AggressiveOpts -XX:+UseBiasedLocking -XX:+UseFastAccessorMethods -XX:+RelaxAccessControlCheck -XX:-UseSpinning -XX:PreBlockSpin=10 -XX:+PrintCommandLineFlags -XX:+UseConcMarkSweepGC -XX:+CMSPermGenSweepingEnabled -XX:+UseAdaptiveGCBoundary

But try -Xmx3500m  If your machine will let you  


But if you are stuck on 32bits?  Here was a nifty trick I found if you have patience,  rebuild the Java RTL using http://www.excelsior-usa.com/jetdleval.html
In fact JET only supports 32bit mode java

Initialization time = 58.926 secs.
Start time: Wed Aug 06 11:20:14 PDT 2008
Lisp implementation: Cycorp Java SubL Runtime Environment
JVM: Excelsior, LLC  Excelsior JET 1.6.0_07
Current KB: 7133
Patch Level: 1.13022
Running on: titan
OS: Linux 2.6.27-0.208.rc1.git2.fc10.x86_64 (i386)
Working directory: /opensim/bin
Total memory allocated to VM: 2294MB.
Memory currently used: 2066MB.
Memory currently available: 227MB.
HTTP server listening on port 3602.  Connect via URL http://titan:3602/cgi-bin/cg?cb-start

Ready for services.
CYC(1):



the GOOD part is the less heap overhead of memory needed to run the App.
AS Compared to OpenJDK


Initialization time = 53.171 secs.
Start time: Tue Aug 05 22:55:53 PDT 2008
Lisp implementation: Cycorp Java SubL Runtime Environment
JVM: Sun Microsystems Inc.  OpenJDK 64-Bit Server VM 1.6.0-b09
Current KB: 7133
Patch Level: 1.13022
Running on: titan
OS: Linux 2.6.27-0.208.rc1.git2.fc10.x86_64 (amd64)
Working directory: /opensim/bin
Total memory allocated to VM: 4268MB.
Memory currently used: 2538MB.
Memory currently available: 1729MB.
HTTP server listening on port 3602.  Connect via URL http://titan:3602/cgi-bin/cg?cb-start

Ready for services.
CYC(1):


Now only using XJAVA (Part of the JET Eval above)  the Memory currently used: 1577MB.  
However it runs much slower in this Interpreted mode.  But all the java heap object are way smaller!

----- Original Message ----- 
  From: Paul Fodor 
  To: dm...@us... ; OpenCyc developers 
  Sent: Friday, August 15, 2008 8:19 PM
  Subject: Re: [OpenCyc-devel] Cyc engine


  > Looks like the Research CYC JRTL is working:
  Yes, thank you very much. Everything seems correct.
  How much memory did you allocated for the Java Virtual Machine? I allocated -Xmx1500m.

  Regards, thank you,
  Paul Fodor.