[Getdp] Launching GetDP from another program
Lars Rindorf
lrf at teknologisk.dk
Sun Nov 28 20:01:49 CET 2010
Hi John
I run getdp using python, a script language. It is very simple and very versatile. You could try it out.
KR Lars
Fra: getdp-bounces at ace20.montefiore.ulg.ac.be [mailto:getdp-bounces at ace20.montefiore.ulg.ac.be] På vegne af John_V
Sendt: 27. november 2010 17:31
Til: r.sabariego at ulg.ac.be
Cc: getdp at geuz.org
Emne: Re: [Getdp] Launching GetDP from another program
Ruth: Thank you for your offer to look at the files. I may take you up on it, but I should do some work first. I suspect the problem somehow lies in the launch from my Java program because GetDP works OK for me too when I run it by hand. (...and my solver.par file is the same as the default one you attached to your last message.)
I had a thought to simplify the command by putting the getdp command line into a batch file (FEA.bat). Then my Java program only needs to launch FEA.bat. What could be simpler? This doesn't work either. I get a
java.io.IOException: Cannot run program "FEA.bat" in directory "It here gives the correct path to my directory, where I can plainly see the FEA.bat file." : CreateProcess error=2, The system cannot find the file specified.
Something is very strange here, but it does not seem to involve GetDP. I suspect there is something else on the command line, possibly something non-printing so does not show up when GetDP reports Running 'getdp_sparskit sample -pre EleSta_v -cal' but which corrupts either the command (if only that is given) or the last option if a command and options are given. Let me follow this clue before I bother you further.
Thanks for you help.
John
On Sat, Nov 27, 2010 at 2:37 AM, Ruth V. Sabariego <r.sabariego at ulg.ac.be<mailto:r.sabariego at ulg.ac.be>> wrote:
The message "Missing number" has to do with the parameters for the solver Sparskit.
Have you checked the content of your file 'solver.par'?
I send you the default file, just in case.
I am not able to reproduce your error. Everything works fine here: GetDP 2.1.0 compiled with Sparskit or GetDP 2.1.1 compiled with PetSc.
Could you send your files?
Regards,
Ruth
On 27/11/10 02:32, John_V wrote:
Thanks Ruth. Unfortunately, I did also try this, with the same result. --John
On Fri, Nov 26, 2010 at 3:22 PM, Ruth V. Sabariego <r.sabariego at ulg.ac.be<mailto:r.sabariego at ulg.ac.be>> wrote:
I often launch GetDP from Matlab without any problem.
Try with:
getdp_sparskit sample -sol EleSta_v
Ruth
getdp_sparskit sample -pre EleSta_v -cal
On 26/11/10 20:25, John_V wrote:
Has anyone successfully launched GetDP from another program?
I have a Java program that writes problem specification files for GetDP and then attempts to launch it. I don't understand GetDP's ""Missing number"" error message.
Here's the SHORT VERSION of my story. GetD itself reports:
Running 'getdp_sparskit sample -pre EleSta_v -cal'
Info : Started on Fri Nov 26 13:29:57 2010
Then it produces error output as follows:
Error : Missing number
Does anyone know what is the "Missing number" to which GetDP is referring? The reported command, 'getdp_sparskit sample -pre EleSta_v -cal', does run properly if I type it manually at a DOS prompt or put it in a batch file. (getdp_sparskit is my renamed getdp executable after compiling with the sparskit library.)
If instead I change the command line to 'getdp_sparskit sample -pre EleSta_v -cal 1>output.txt 2>errout.txt' there is more progress before it fails. I get the following normal output followed by error message:
Info : Started on Fri Nov 26 13:28:24 2010
Info : Unknown option: '2>errout.txt'
Info : Loading problem definition 'sample.pro<http://sample.pro>'
Info : Loading problem definition 'Jacobian_Lib.pro'
Info : Loading problem definition 'Integration_Lib.pro'
Info : Loading problem definition 'EleSta_v.pro'
Info : Selected Resolution 'EleSta_v'
Info : Loaded Geometric data 'sample.msh'
Info : System 'Sys_Ele' : Real
P r e - P r o c e s s i n g . . .
Info : Loding Pre-Processing data 'sample.pre'
Info : (CPU = 10.4375s)
E n d P r e - P r o c e s s i n g
P r o c e s s i n g . . .
Info : Generate[Sys_Ele]
Info : Loading parameter file 'solver.par'
Error : Unknown solver parameter 'pre EleSta_v'
The solver.par file in my working directory works OK when I run from the command line, and it does not contain the characters EleSta_v, so this error message is also mysterious.
I would appreciate any insights.
John
DETAILED VERSION. Below is one version of the code I use to launch GetDP from my Java program and the resulting output. (I wrote a second version, using Java's ProcessBuilder class in hopes of seeing a different result, but the output was identical.)
My Java code:
String[] command = new String[] {
"getdp_sparskit",
"sample",
"-pre EleSta_v",
"-cal"
};
Runtime runtime = Runtime.getRuntime();
Process child = runtime.exec(command, null, new File(feaFolder)); /* feaFolder is working directory with sample.pro<http://sample.pro>, etc.*/
InputStream is = child.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
BufferedReader brErr = new BufferedReader(new InputStreamReader(child.getErrorStream()));
String line;
System.out.printf("Output of running %s is:",
Arrays.toString(command));
while ((line = br.readLine()) != null) {
System.out.println(line);
}
System.out.printf("Error output of running %s is:", Arrays.toString(command));
while((line = brErr.readLine()) != null) {
System.out.println(line);
}
int exitVal = child.waitFor();
The exitVal = 1 indicates a not-normal exit.
Output and error message:
Output of running [getdp_sparskit, sample, -pre EleSta_v, -cal] is:
Info : Running 'getdp_sparskit sample -pre EleSta_v -cal'
Info : Started on Fri Nov 26 13:29:57 2010
Error output of running [getdp_sparskit, sample, -pre EleSta_v, -cal] is:Error : Missing number
The longer, more successful message reported above resulted from changing the definition of command to
String[] command = new String[] {
"getdp_sparskit",
"sample",
"-solve EleSta_v",
"1>output.txt",
"2>errout.txt"
};
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--
Dr. Ir. Ruth V. Sabariego
University of Liege, Dept. of Electrical Engineering & Computer Science,
Applied & Computational Electromagnetics (ACE),
phone: +32-4-3663737 - fax: +32-4-3662910 - http://ace.montefiore.ulg.ac.be/
_______________________________________________
getdp mailing list
getdp at geuz.org<mailto:getdp at geuz.org>
http://www.geuz.org/mailman/listinfo/getdp
--
Dr. Ir. Ruth V. Sabariego
University of Liege, Dept. of Electrical Engineering & Computer Science,
Applied & Computational Electromagnetics (ACE),
phone: +32-4-3663737 - fax: +32-4-3662910 - http://ace.montefiore.ulg.ac.be/
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