Differences between revisions 14 and 17 (spanning 3 versions)

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1. Compilation problems

1.1. Error when compiling Ptolemy II (Windows only)

If running

make configPt

or running

./configure && make fast install

gives the following error

/bin/sh: -c: line 1: unexpected EOF while looking for matching `''
/bin/sh: -c: line 4: syntax error: unexpected end of file

then the source code is most likely with Unix line endings. Download the Windows source code from the Ptolemy web page.

1.2. Error when compiling MATLAB (Windows only)

Under Windows, if the BCVTB is compiled using the Microsoft compiler, then the MATLAB libraries also need to be compiled with the Microsoft compiler. If, however, the gcc compiler has been used when compiling the BCVTB, then the following compilation error may be obtained when compiling the MATLAB libraries:

Writing library for establishBSDSocket.mexw32
c:\docume~1\mwetter\locals~1\temp\mex_ae679\simulinksocket.obj .text: undefined reference to '_establishclientsocket'
c:\docume~1\mwetter\locals~1\temp\mex_ae679\simulinksocket.obj .text: undefined reference to '_exchangewithsocket'
c:\docume~1\mwetter\locals~1\temp\mex_ae679\simulinksocket.obj .text: undefined reference to '_closeipc'

To fix this problem, open Matlab, run

mex -setup

and select the Microsoft Visual C++ compiler from the menu. This need to be done only once as it updates your Matlab settings.

2. Runtime problems

The following steps typically help analyzing problems if a simulation program does not work as expected.

2.1. Check log files

If something goes wrong during the simulation, check the files simulation.log, utilSocket.log and utilClient.log. They contain log messages that may indicate the cause of the problem. If these files do not exist, go to the directory bcvtb/lib, open the file defines.h and add the line

#define NDEBUG

Then, from the directory bcvtb/lib/util compile the libraries using

ant clean all

and rerun the simulation. Now the log files should be written to the directory from which you started the BCVTB.

2.2. Display program output

Depending on how simulation programs are called by the Simulation actor in Ptolemy, the console output written by the simulation program may not be visible. To see the console output, change the command line of the Ptolemy actor from

 bash ./runClient.sh

 xterm -e bash ./runClient.sh

This will start a terminal that shows the output of the running simulation program which help analyzing what goes wrong, for example, when the simulation program terminates due to an error before connecting to the BCVTB.

2.3. Memory problem

If the following error occurs:

java.lang.OutOfMemoryError: Java heap space

then increase the Java heap space by running vergil with the command

java -Xmx1024m ptolemy.vergil.VergilApplication system.xml

The argument -Xmx1024m declares how much memory is allocated. The default for Java is -Xmx128m

-  ⇤ ← Revision 14 as of 2009-06-10 03:43:08 → 
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  Editor: MichaelWetter
  Comment:
+   ← Revision 17 as of 2009-07-01 22:29:10 → ⇥
  Size: 3120
  Editor: MichaelWetter
  Comment:
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-=== Error when compiling MATLAB (Mac OS X with Matlab R2009a only) ===
Under Mac OS X, if the BCVTB is compiled in Matlab R2009a, the following error may occur:

{{{
Undefined symbols:
  "_mxGetM", referenced from:
      _mexFunction in establishBSDSocket.o
  "_mxGetN", referenced from:
      _mexFunction in establishBSDSocket.o
  "_mxIsNumeric", referenced from:
      _mexFunction in establishBSDSocket.o
  "_mxGetClassID", referenced from:
      _ssGetDTypeIdFromMxArray in establishBSDSocket.o
  "_mxCalloc", referenced from:
      __RegNumInputPortsCB in establishBSDSocket.o
      __RegNumOutputPortsCB in establishBSDSocket.o
      _mexFunction in establishBSDSocket.o
  "_mxGetPr", referenced from:
      _mexFunction in establishBSDSocket.o
  "_mxIsComplex", referenced from:
      _mexFunction in establishBSDSocket.o
  "_mxCreateDoubleMatrix_700", referenced from:
      _mexFunction in establishBSDSocket.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
    mex: link of ' "establishBSDSocket.mexmaci"' failed.
??? Error using ==> mex at 218
Unable to complete successfully.
Error in ==> /Applications/MATLAB_R2009a.app/toolbox/simulink/simulink/+legacycode/@LCT/compile.p>compile at 261
Error in ==> /Applications/MATLAB_R2009a.app/toolbox/simulink/simulink/legacy_code.p>legacy_code at 91
Error in ==> compile at 58
    legacy_code('compile', def, ...
}}}
This problem is caused because the linker flags in Matlab changed in R2009a. To fix this problem, open the file {{{bcvtb/lib/simulink/compile.m}}} and remove the entry

{{{
-L/usr/lib
}}}
Then, recompile the file. This will be fixed in releases after version 0.1.1.
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-For each simulation, the BCVTB will write a log file that contains the console output of the simulation program. The name of the simulation log file is determined by parameter {{{simulationLogFile}}} of the {{{Simulator}}} actor, with the default name being {{{simulation.log}}}. Check this file for possible error messages.
=== Investigate program output ===
+If something goes wrong during the simulation,  check the files {{{simulation.log}}}, {{{utilSocket.log}}} and {{{utilClient.log}}}. They contain log messages that may indicate the cause of the problem. If these files do not exist, go to the directory {{{bcvtb/lib}}}, open the file {{{defines.h}}} and add the line

{{{
#define NDEBUG
}}}
Then, from the directory {{{bcvtb/lib/util}}} compile the libraries using{{{
ant clean all
}}}
and rerun the simulation. Now the log files should be written to the directory from which you started the BCVTB.

=== Display program output ===
-Line 93:
+Line 58:
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+Line 63:
-=== Investigate log files ===
If something goes wrong during the simulation,  check the files {{{simulation.log}}}, {{{utilSocket.log}}} and {{{utilClient.log}}}. They contain log messages that may indicate the cause of the problem. If these files do not exist, go to the directory {{{bcvtb/lib}}}, open the file {{{defines.h}}} and add the line
+=== Memory problem ===
-Line 102:
+Line 65:
-{{{
#define NDEBUG
}}}
Then, from the directory {{{bcvtb/lib}}} compile the libraries using

{{{
make clean
make
}}}
and rerun the simulation. Now the log files should be written to the directory from which you started the BCVTB.
+If the following error occurs:{{{
java.lang.OutOfMemoryError: Java heap space}}}
then increase the Java heap space by running vergil with the command{{{
java -Xmx1024m ptolemy.vergil.VergilApplication system.xml}}}
The argument {{{-Xmx1024m}}} declares how much memory is allocated. The default for Java is -Xmx128m