MATLAB: Does the deployed application MATLAB 7.5 (R2007b) fail with “Floating point exception” on a Linux machine

exceptionfloatingMATLAB Compilerpoint

My development machine runs kernel 2.6.20-1.3002.fc6xen with Fedora Core 6 and my deployment machine has is Fedora Core 4 with kernel 2.6.11-1.1369_FC4smp. I run my application with the following command:

 ./run_myprog_compiled.sh MCR_TEST2/v77/
 ------------------------------------------
 Setting up environment variables
 ---
 Found MCR Java JRE version: 1.6.0
 LD_LIBRARY_PATH is .:MCR_TEST2/v77//runtime/glnxa64:MCR_TEST2/v77//bin/glnxa64:MCR_TEST2/v77//sys/os/glnxa64:MCR_TEST2/v77//sys/java/jre/glnxa64/jre1.6.0/lib/amd64/native_threads:MCR_TEST2/v77//sys/java/jre/glnxa64/jre1.6.0/lib/amd64/server:MCR_TEST2/v77//sys/java/jre/glnxa64/jre1.6.0/lib/amd64/client:MCR_TEST2/v77//sys/java/jre/glnxa64/jre1.6.0/lib/amd64

and I receive the following error:

 ./run_myprog_compiled.sh: line 40: 26292 Floating point exception./avg_tc_compiled $*

Best Answer

These two machine use different versions of the GLIBC library. The deployment machine (test machine) must have the same (recommended) or a compatible version of GLIBC installed.

Note that a supported GLIBC version should be used on the development machine, The following link contains information on the supported versions:

 <http://www.mathworks.com/products/system.shtml/Unix>

Refer to the Related Solution to obtain the current glibc version on a machine:

 <http://www.mathworks.com/support/solutions/data/1-18SSE.html?solution=>

A possible reason for this floating point exception are the changes introduced in the ELF .hash section that provides symbols for dynamic linking between the two machines. Please refer the following link for more details on this:

 <http://download.fedora.redhat.com/pub/fedora/linux/core/6/i386/os/RELEASE-NOTES-en_US.html#id324882>
 "This new .gnu.hash section, which is produced with the new default --hash-style=gnu option for gcc, serves the same purpose as previous hash sections. It provides, however, an approximately 50% increase in dynamic linking speed. Binaries and libraries produced with the new hashing function are incompatible with older glibc and dynamic linker releases. To use the old-style hashing routines for compatibility with older glibc-based systems, pass the --hash-style=sysv option instead."

The recommended option is to use a compatible glibc on the deployment machine or use an older glibc on the development machine.

A workaround would me to modify the mbuildopts.sh in the preference directory. Please note that this is not tested by the MathWorks and is not a recommended procedure.

The workaround it to replace line 46 of mbuildopts.sh by

RPATH="-Wl,-rpath-link,$TMW_ROOT/bin/$Arch,--hash-style=sysv"

The preferences directory can be found by typing PREDIR in your MATLAB command window.

Related Solutions

MATLAB: What is the correct value for LD_LIBRARY_PATH on 64-bit Linux when using MATLAB Compiler 4.4 (R2006a)

There is an error in the documentation for MATLAB Compiler 4.4 (R2006a) with regards to the value of the LD_LIBRARY_PATH environment variable on 64-bit Linux platforms.

On a development machine, the documentation should read:

 setenv LD_LIBRARY_PATH 
         $MATLABROOT/sys/os/glnxa64: 
         $MATLABROOT/bin/glnxa64: 
         $MATLABROOT/extern/lib/glnxa64: 
         $MATLABROOT/sys/java/jre/glnxa64/jre1.5.0/lib/amd64/native_threads: 
         $MATLABROOT/sys/java/jre/glnxa64/jre1.5.0/lib/amd64/server: 
         $MATLABROOT/sys/java/jre/glnxa64/jre1.5.0/lib/amd64 
     setenv XAPPLRESDIR $MATLABROOT/X11/app-defaults

For a deployment machine, the documentation should read:

 setenv LD_LIBRARY_PATH 
$MCR_ROOT/$VER/runtime/glnxa64: 
$MCR_ROOT/$VER/sys/os/glnxa64: 
$MCR_ROOT/$VER/sys/java/jre/glnxa64/jre1.5.0/lib/amd64/native_threads: 
$MCR_ROOT/$VER/sys/java/jre/glnxa64/jre1.5.0/lib/amd64/server: 
$MCR_ROOT/$VER/sys/java/jre/glnxa64/jre1.5.0/lib/amd64:
 setenv XAPPLRESDIR $MCR_ROOT/$VER/X11/app-defaults

In the preceding example, $MATLABROOT and $MCR_ROOT represent the root directories of the MATLAB ($MATLABROOT) and MATLAB Compiler Runtime (MCR) installation ($MCR_ROOT) respectively. $VER refers to the version of MCR installed (for example, v73 or v74).

MATLAB: Is there a checklist to successfully deploy an application/ library on a system using MATLAB Compiler Runtime

MATLAB Deployment Checklist

===========================

Use this checklist to successfully deploy your application, component,

or library.

You can distribute a MATLAB Compiler-generated standalone application,

component, or library to any target machine with the same operating

system as the machine on which the application was compiled

(the "source" development machine).

For more information, see the documentation for the MATLAB Compiler at:

http://www.mathworks.com/access/helpdesk/help/toolbox/compiler/

1. Ensure that the MATLAB Compiler Runtime (MCR) is installed on target

   machines, and ensure you have installed the correct version. To verify 
   this, do the following: 
    A. Attempt to verify the MCR exists on your system.
    The MCR usually resides in these locations on these platforms:
    Operating System        Path to MCR
    ================        ===========
    Windows              C:\Program Files\MATLAB\MATLAB Compiler Runtime\v78
    Mac                  Applications/MATLAB/MATLAB_Compiler_Runtime/v78 
    Linux/Solaris        *** No predetermined installation location ***
                         Contact your system administrator.  
        NOTE: For information about the installation process and the MCR, 
              type "help MCR" or "help mcrinstaller" at the MATLAB 
              command prompt.

2. Add the MCR directory to the path specified by the target system's

   environment variable. 
    A. Locate the name of the environment variable to set, using the table 
       below:
    Operating System        Environment Variable
    ================        ====================
    Windows                PATH
    Linux                  LD_LIBRARY_PATH
    Solaris                LD_LIBRARY_PATH
    Mac                    DYLD_LIBRARY_PATH
    B. Set the path by doing one of the following:
        On Windows systems:
        * Add the MCR directory to the environment variable by opening a 
        command prompt and issuing the DOS command, specifying either 
        win32 or win64:
            set PATH=C:\Program Files\MATLAB\MATLAB Compiler Runtime\v78\runtime\{win32|win64};%PATH% 
        Alternately, for Windows, add the following pathname:
            C:\Program Files\MATLAB\MATLAB Compiler Runtime\v78\runtime\{win32|win64}
        to the PATH environment variable, specifying either win32 or win64, 
        by doing the following:
            1. Select the My Computer icon on your desktop.
            2. Right-click the icon and select Properties from the menu.
            3. Select the Advanced tab.
            4. Click Environment Variables.  
        On UNIX systems:
        * Add the MCR directory to the environment variable by issuing 
            the following commands:
        Linux
            setenv LD_LIBRARY_PATH
                <mcr_root>/v78/runtime/glnx86:
                <mcr_root>/v78/sys/os/glnx86:
                <mcr_root>/v78/sys/java/jre/glnx86/jre1.6.0/lib/i386/native_threads:
                <mcr_root>/v78/sys/java/jre/glnx86/jre1.6.0/lib/i386/server:
                <mcr_root>/v78/sys/java/jre/glnx86/jre1.6.0/lib/i386
            setenv XAPPLRESDIR <mcr_root>/v78/X11/app-defaults
        Solaris64
            setenv LD_LIBRARY_PATH /usr/lib/lwp:
                <mcr_root>/v78/runtime/sol64:
                <mcr_root>/v78/sys/os/sol64:
                <mcr_root>/v78/sys/java/jre/sol64/jre1.6.0/lib/sparcv9/native_threads:
                <mcr_root>/v78/sys/java/jre/sol64/jre1.6.0/lib/sparcv9/server:
                <mcr_root>/v78/sys/java/jre/sol64/jre1.6.0/lib/sparcv9
            setenv XAPPLRESDIR <mcr_root>/v78/X11/app-defaults
        Linux x86-64
            setenv LD_LIBRARY_PATH
                <mcr_root>/v78/runtime/glnxa64:
                <mcr_root>/v78/sys/os/glnxa64:
                <mcr_root>/v78/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/native_threads:
                <mcr_root>/v78/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/server:
                <mcr_root>/v78/sys/java/jre/glnxa64/jre1.6.0/lib/amd64 
            setenv XAPPLRESDIR <mcr_root>/v78/X11/app-defaults
        Mac
            setenv DYLD_LIBRARY_PATH
                <mcr_root>/version/runtime/maci:
                <mcr_root>/version/sys/os/maci:
                <mcr_root>/version/bin/maci:
                /System/Library/Frameworks/JavaVM.framework/JavaVM:
                /System/Library/Frameworks/JavaVM.framework/Libraries
            setenv XAPPLRESDIR <mcr_root>/version/X11/app-defaults

Best Answer

Related Solutions

MATLAB: What is the correct value for LD_LIBRARY_PATH on 64-bit Linux when using MATLAB Compiler 4.4 (R2006a)

MATLAB: Is there a checklist to successfully deploy an application/ library on a system using MATLAB Compiler Runtime

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