无效的初始堆大小：-Xms5g

Question

I try to open the software Cyc on windows (available here: https://sourceforge.net/projects/opencyc/files/OpenCyc%204.0/ ).

I follow the instructions and execute the BAT file "run-cyc" to start, then I have this message on the cmd.exe:

PORT OFFSET = 00
Invalid initial heap size: -Xms5g
The specified size exceeds the maximum representable size.
Error: Could not create the Java Virtual Machine.
...

I know I have to change the size using a command like "java -Xms200m" (which size would be the best?) but I don't know what to write exactly.

Here is the script of the BAT file:

rem run-cyc.bat
rem
rem
rem Assumes that java 1.5 or higher (1.6 or higher preferably) is in your path

set CLASSPATH=lib\cyc.jar
set CLASSPATH=%CLASSPATH%;lib\subl.jar
set CLASSPATH=%CLASSPATH%;lib\junit.jar
set CLASSPATH=%CLASSPATH%;lib\cycSparqlEndpoint.jar
set CLASSPATH=%CLASSPATH%;resource
set CLASSPATH=%CLASSPATH%;lib\ext\
set CLASSPATH=%CLASSPATH%;plugins\
set CLASSPATH=%CLASSPATH%;lib\ant-1.6.5.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-security-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-xml-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\ecj-3.5.1.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-server-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\jsp-2.1-glassfish-2.1.v20100127.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-continuation-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-servlet-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\jsp-api-2.1-glassfish-2.1.v20100127.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-http-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-util-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-io-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\jetty-webapp-8.0.4.v20111024.jar
set CLASSPATH=%CLASSPATH%;lib\servlet-api-3.0.20100224.jar

set "BACKGROUND="

if "%1"=="-b" (
set "BACKGROUND=-b "
SHIFT
)
rem Use DEFAULT_PORT_OFFSET unless another offset was passed as the last 
rem argument this bat file

set DEFAULT_PORT_OFFSET=00

if "%1"==""  (
SET PORT_OFFSET=%DEFAULT_PORT_OFFSET%
goto :port_set
)

if  "%1"=="00" goto :set_port
if  "%1"=="20" goto :set_port
if  "%1"=="40" goto :set_port
if  "%1"=="60" goto :set_port
if  "%1"=="80" goto :set_port

rem AN INVALID PORT WAS SPECIFIED
echo ....ERROR Invalid port offset specified: %1%
if not defined BACKGROUND pause
exit

:set_port
SET PORT_OFFSET=%1

:port_set
echo PORT_OFFSET = %PORT_OFFSET%

set INIT_FORM="(progn (load \"init/jrtl-release-init.lisp\") (cinc *base-tcp-port* %PORT_OFFSET%) (load \"init/port-init.lisp\"))"

rem Add the following line to the JVM options to allow remote debugging
rem -agentlib:jdwp=transport=dt_socket,server=y,address=8888,suspend=n

java -server -Xms5g -Xmx8g -XX:MaxPermSize=256m -XX:+AggressiveOpts -XX:+UseParallelGC -XX:+UseBiasedLocking -XX:+UseFastAccessorMethods -XX:-UseSpinning -XX:PreBlockSpin=10 -XX:+UseCompressedOops -cp %CLASSPATH% com.cyc.tool.subl.jrtl.nativeCode.subLisp.SubLMain %BACKGROUND% -f %INIT_FORM%

if not defined BACKGROUND pause

So can you tell me how to change the size, and where? With a command in cmd.exe or inside the BAT file ?

Thank you

Answer 1

删除对您的机器来说似乎太大的-Xms5g ，然后开始更小，也许您提到的-Xms200m将是一个好的起点。

Answer 2

You most likely need a 64 bit OS and a 64-bit Java install. The release notes for OpenCyc state:

Note the release notes (that you linked to!) state:

OpenCyc requires 3G RAM under 64bit and about 1G of disk space.
Running OpenCyc under 32bit is no longer supported.

So, while the suggested change to the BAT file might work, it is unlikely that running Cyc with half ¹ the minimum recommended heap size is going to to be pleasant.

---

^{1 - The maximum Java heap size that you can expect to work on a 32 bit Windows platform is 1.5 to 1.8 GB ... for reasons due to the architecture of Windows.}