Re: [Help-glpk] "Exception in thread ProcessManager"

[glpk xypron]

Hello Gilbert,

http://bugs.sun.com/bugdatabase/view_bug.do;:YfiG?bug_id=4109888
reports 
"Process.destroy () does not kill the subprocess under any jvm."

The bug is still in status accepted.

This might lead to out of memory conditions. Please, list the running processes 
while your program is running (e.g. ps -fe | grep glpsol). Have a look on the 
available memory.

A GLPK JNI interface exists, which should allow you to call GLPK as a library. 
Unfortunately it is obviously out of date. Maybe some adaption of the java 
files is necessary. Especially when compiling for 64 bit corrections are 
necessary (do not copy pointers to 32bit integers).

http://bjoern.dapnet.de/glpk/
http://forums.sun.com/thread.jspa?threadID=5286888&tstart=270

Best regards

Xypron

-------- Original-Nachricht --------
> Datum: Wed, 17 Sep 2008 20:27:46 +0400
> Betreff: [Help-glpk] "Exception in thread ProcessManager"

> 
> Hello,
> 
> I am using glpk to find an optimal solution to assign n stations to m
> servers. I get the following error: "Exception in thread ProcessManager".
> 
> In fact, I am running a java program on unix server. In this program, I
> call
> glpsol by: "Process p = Runtime.getRuntime().exec(glpsol ...)"
> and each time I do "p.destroy()". In each iteration, I increase the number
> of variables. For example, let suppose that I have 100 servers
> et x stations. With a loop "for", I increase the number of stations from
> 10
> to 200 (for x=10 to 200 do{...}). The problem is, when I
> have around 100 or 110 stations, I get the error "Exception in thread
> ProcessManager" and the program stops.
> 
> I notice, that if execute the java program without calling glpsol, I have
> no
> errors even I reach 500 stations. So, the problem appears when I call
> glpsol.
> 
> Could you please help me to resolve this issue.
> Thank you in advance,
> Gilbert
> 
> 
> -------------------------------------------------------
> Gilbert Sawma address@hidden
> Ph.D. student
> Bureau 808, PHARE, UFR 169
> LIP6 - Laboratoire d'Informatique de Paris 6
> UPMC - Paris Universitas
> 104 Avenue du Président Kennedy, 75016, Paris
> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
> Help-glpk mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/help-glpk

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