Re: [Help-glpk] interrupt glpk using JNI
I am using GLPK JNI for my problem. For the small instances it's ok since the solver doesn't take much time to solve. But sometimes when the instances are large GLPK takes few minutes to solve the instance. Now what if the user wants to interrupt the solver and not continue the solution process. I have tried to find out how to stop the solver while it is still running but no luck. I have tried to stop the java thread that starts GLPK solver native thread but it didn't help. Is there any API call or any specific method to interrupt the solver? I would highly appreciate any help. You can limit the solution time. I'm not sure about jni (since never used it); however, in c this can be attained by the following call: lpx_set_real_parm(prob, LPX_K_TMLIM, tmlim); where tmlim is the time limit, in secs, of double type. ___ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk
Re: [Help-glpk] interrupt glpk using JNI
Thanks for your quick response but unfortunately this solution doesn't apply in this case. I want to let the user decide whether he wants to interrupt/cancel the solution process or not, and when. To be precise in the GUI I want to provide the cancel button once the solution is in progress.The time limit can be set only before the solution process begins. Once the solver starts solving the process, settting this parameter doesn't help(I actually tried it). Any other suggestions?Andrew Makhorin [EMAIL PROTECTED] wrote: I am using GLPK JNI for my problem. For the small instances it's ok since the solver doesn't take much time to solve. But sometimes when the instances are large GLPK takes few minutes to solve the instance. Now what if the user wants to interrupt the solver and not continue the solution process. I have tried to find out how to stop the solver while it is still running but no luck. I have tried to stop the java thread that starts GLPK solver native thread but it didn't help. Is there any API call or any specific method to interrupt the solver? I would highly appreciate any help.You can limit the solution time. I'm not sure about jni (since neverused it); however, in c this can be attained by the following call:lpx_set_real_parm(prob, LPX_K_TMLIM, tmlim);where tmlim is the time limit, in secs, of double type. Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.___ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk
Re: [Help-glpk] interrupt glpk using JNI
Thanks for your quick response but unfortunately this solution doesn't apply in this case. I want to let the user decide whether he wants to interrupt/cancel the solution process or not, and when. To be precise in the GUI I want to provide the cancel button once the solution is in progress. The time limit can be set only before the solution process begins. Once the solver starts solving the process, settting this parameter doesn't help(I actually tried it). Any other suggestions? Do you want just to terminate the solver obtaining no results or you want the solver to correctly finish its job? ___ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk
Re: [Help-glpk] interrupt glpk using JNI
I just want to terminate without getting any results.Andrew Makhorin [EMAIL PROTECTED] wrote: Do you want just to terminate the solver obtaining no results oryou want the solver to correctly finish its job? Blab-away for as little as 1ยข/min. Make PC-to-Phone Calls using Yahoo! Messenger with Voice.___ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk
Re: [Help-glpk] interrupt glpk using JNI
I just want to terminate without getting any results. The best way is to run the solver as a separate process; then you can terminate it at any time using an appropriate system function like kill() (in Linux) or TerminateProcess() (in Windows). However, I am not familiar with details of how jni is implemented. Andrew Makhorin ___ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk
