[Coin-discuss] AAP_BP example

[Matthew Galati]

Hi Stephan,

I typically run everything from the Run subdir which is where I store 
par.par. From there, I usually type:

../Linux-g/bcps ParamFile par.par

which seems to work ok. Your way should work fine as well. I'll update 
the doc.

I have not tried out AAP using OSL. What OS are you using? More 
importantly, what version of glibc are you using? as I have encountered 
OSL errors before when using the newer glibc2.3. I will try things out 
with OSL later tonight and get back to you.

No, the memory leak should not cause a seg-fault.

Thanks,
Matt




> Thanks Matthew, for the AAP example. One notice to the documentation. To
> run the executable in section 4 you wrote '... type Linux-g/bcps
> ParamFile par.par' This is wrong in two terms.
> - At first the parameter file is located in Run/ .
> - Secondly, in Run/par.par paths to data files contain a leading ../ and
> bcps complains not beeing able to find the data file when typing
> 'Linux-g/bcps ParamFile Run/par.par' on the command line. So at last I
> had to go down to Linux-g/ and then type './bcps ParamFile
> ../Run/par.par' to run the example. The other option were to remove the
> leading ../ in Run/par.par at AAP_datafile. Then you can run the
> executable by typing 'Linux-g/bcps ParamFile Run/par.par'. Anyway the
> doc should be consistent in section 4.
> 
> There is another problem I encountered while playing with AAP_BP. I have
> no clue what's wrong and I don't know if it is an error in the code. But
> I'll describe it here anyway.
> 
> I tried to run the example with CLP and OSL on different problem files
> with the leading ../ removed in Run/par.par at AAP_datafile. So that
> line reads for example
> 
> AAP_datafile            Data/small/6.1.aap
> 
> All problem files run fine with CLP. But when I use OSL (by modifying
> Makefile.aap) with problem file 6.1.aap, I get the following error
> 
> [work at localhost AAP_BP]$ Linux-g/bcps ParamFile Run/par.par
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> BCP_parameters::read_from_stream   Scanning parameter stream.
> Speicherzugriffsfehler
> [work at localhost AAP_BP]$
> 
> The last message means 'memory exception fault'. Fortunately (?) it runs
> without complications when I override the AAP_datafile setting with the
> same problem file by issuing
> 
> [work at localhost AAP_BP]$ Linux-g/bcps ParamFile Run/par.par AAP_datafile
> Data/small/6.1.aap
> 
> More strange, the behaviour is just the other way around with problem
> file Data/small/8.1.aap or 10.1.aap. Issuing
> 
> [work at localhost AAP_BP]$ Linux-g/bcps ParamFile Run/par.par
> 
> works, but
> 
> [work at localhost AAP_BP]$ Linux-g/bcps ParamFile Run/par.par AAP_datafile
> Data/small/8.1.aap
> 
> exits with the same error as above.
> 
> The first behaviour (overriding AAP_datafile necessary for running)
> applies to all 6.*.aap files. The second behaviour (overriding
> AAP_datafile prevents from running) applies to all to 8.*.aap and
> 10.*.aap files. I don't know if this is really related to COIN-BCP.
> Anyway, it's very odd. Any ideas?
> 
> Kind regards,
> Stephan Hennig
> 
> PS. I just read the posting '[Coin-discuss] BCP user_data memory leak /
> BCP mailing list?'. Am I facing that memory leak mentioned?
> 
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-- 
Matthew Galati
ISE Lehigh University
IBM Service Parts Solutions
610.758.4042 (Office)
610.882.0779 (Home)
magh at lehigh.edu, magal11 at us.ibm.com
http://sagan.ie.lehigh.edu/mgalati/