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

6464-bit64bitlinuxMATLAB Compiler

The MATLAB Compiler documentation lists the following to set my LD_LIBRARY _PATH variable.

 setenv LD_LIBRARY_PATH 
 $MATLABROOT/sys/os/glnxa64: 
 $MATLABROOT/bin/glnxa64: 
 $MATLABROOT/sys/java/jre/glnxa64/jre1.4.2/lib/amd64/native_threads: 
 $MATLABROOT/sys/java/jre/glnxa64/jre1.4.2/lib/amd64/client: 
 $MATLABROOT/sys/java/jre/glnxa64/jre1.4.2/lib/amd64:

$MATLABROOT is the MATLAB root directory on your machine, as returned by typing:

matlabroot

at the MATLAB command prompt.

However, there is no folder named:

 $MATLABROOT/sys/java/jre/glnxa64/jre1.4.2/lib/amd64/client:

When I executed my application with the LD_LIBRARY_PATH variable set to the above value, I receive the following error message.

 Warning: Unable to load Java Runtime Environment: libjvm.so: cannot open shared object file: No such file or directory. 
 Warning: Disabling Java support 
 Hello, World 
 Severe: 
 javainit.cpp:216: Assert : JNI_OK == jvmLoadResult, "" 
 The program '[12467] : Native' has exited with code 2 (0x2). 
 Abort

Best Answer

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).

Related Solutions

MATLAB: Do I receive an error about libacml_mv.so or libguide.so when using MATLAB Compiler 4.6 (R2007a)

The document for MATLAB 7.6 (R2008a) has been updated.

For previous releases:

The mcr_root/version/bin/arch directory (for example, /usr/local/mcr/v76/bin/glnxa64) is not normally required on the LD_LIBRARY_PATH. However, on some systems, the system library loader cannot locate libraries in this directory if it is not on the LD_LIBRARY_PATH.

There are two main ways to work around this issue:

1. Use scripts such as those generated by the MATLAB Compiler for the Standalone Executable target. These add this directory to the path only while the application is running, by creating a subshell with a modified LD_LIBRARY_PATH. This is the preferred method, and simplifies running applications from several versions of the MATLAB Compiler in the same environment.

When following this approach, you can use the following LD_LIBRARY_PATH setting:

 setenv LD_LIBRARY_PATH 
 mcr_root/version/runtime/glnxa64: 
mcr_root/version/bin/glnxa64:
 mcr_root/version/sys/os/glnxa64: 
 mcr_root/version/sys/java/jre/glnxa64/jre1.5.0/lib/amd64/native_threads: 
 mcr_root/version/sys/java/jre/glnxa64/jre1.5.0/lib/amd64/server: 
 mcr_root/version/sys/java/jre/glnxa64/jre1.5.0/lib/amd64:

2. You can add the mcr_root/version/bin/arch directory to the usual shell environment, using the ordering shown above. Because the libraries in this directory are not versioned, this should not be done when using applications generated by more than one version of the MATLAB Compiler.

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: Do I receive an error about libacml_mv.so or libguide.so when using MATLAB Compiler 4.6 (R2007a)

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

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