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Subject: Re: [OMPI users] 64-bit mpiJava in a heterogeneous environment
From: Ralph Castain (rhc_at_[hidden])
Date: 2012-09-24 10:47:33


I'm afraid that's one for the Oracle folks. Only suggestion I can make here is to utilize the JAVA_HOME environmental variable to point to the correct location on the different machines - that's what I do, rather than trying to force a common installation location.

On Sep 24, 2012, at 3:03 AM, Siegmar Gross <Siegmar.Gross_at_[hidden]> wrote:

> Hi,
>
> I want to use mpiJava in openmpi-1.9a1r27361 in 64-bit mode in a
> heterogeneous Solaris and Linux world and have a problem with the
> installation of Java 7 update 7. I know that it is not exactly a
> question for this group, but perhaps somebody wants to use mpiJava
> in the same way and knows a solution for my problem. I have
> downloaded and installed the following packages from
> http://www.oracle.com/technetwork/java
>
> jdk-7u7-solaris-sparc.tar.gz
> jdk-7u7-solaris-sparcv9.tar.gz
> jdk-7u7-solaris-i586.tar.gz
> jdk-7u7-solaris-x64.tar.gz
> jdk-7u7-linux-i586.tar.gz
> jdk-7u7-linux-x64.tar.gz
>
> The 32-bit Solaris packages contain everyting and the 64-bit packages
> contain the add-ons for 64-bit. Especially they create separate
> directories for the 64-bit binary programs in <path to Java>/bin and
> <path to Java>/jre/bin. It's different for Linux, because both packages
> contain everything and 32- and 64-bit binary programs are installed in
> the same directory so that they overwrite each other. Therefore I
> created subdirectories "amd64" in both "bin" directories, installed
> the 64-bit package first and moved the binary programs into the new
> subdirectories before I installed the 32-bit version. Unfortunately
> that doesn't solve the problem, because the 64-bit version of "javac"
> cannot find necessary libraries (although the library directory is
> part of LD_LIBRARY_PATH).
>
> /usr/local/jdk1.7.0_07/bin/amd64/javac: error while loading
> shared libraries: libjli.so: cannot open shared object file:
> No such file or directory
>
>
> linpc4 fd1026 97 cd /usr/local/jdk1.7.0_07/bin/
> linpc4 bin 98 ldd javac
> linux-gate.so.1 => (0xffffe000)
> libpthread.so.0 => /lib/libpthread.so.0 (0xf7750000)
> libjli.so => /usr/local/jdk1.7.0_07/bin/../jre/lib/i386/jli/libjli.so (0xf773b000)
> libdl.so.2 => /lib/libdl.so.2 (0xf7736000)
> libc.so.6 => /lib/libc.so.6 (0xf75c9000)
> /lib/ld-linux.so.2 (0xf776c000)
>
> linpc4 bin 99 cd amd64/
> linpc4 amd64 100 ldd javac
> linux-vdso.so.1 => (0x00007fffc11ff000)
> libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f11d1083000)
> libjli.so => not found
> libdl.so.2 => /lib64/libdl.so.2 (0x00007f11d0e7f000)
> libc.so.6 => /lib64/libc.so.6 (0x00007f11d0aef000)
> /lib64/ld-linux-x86-64.so.2 (0x00007f11d12a0000)
>
>
> The problem is that the path to the library is hardcoded in the Linux
> version of "javac" so that it looks in the wrong directory if you move
> the program into a subdirectory.
>
> linpc4 amd64 101 strings javac
> /lib64/ld-linux-x86-64.so.2
> ...
> $ORIGIN/../lib/amd64/jli:$ORIGIN/../jre/lib/amd64/jli
> ...
>
>
> "Solaris x86_64" doesn't have this problem.
>
> sunpc4 bin 105 cd amd64/
> sunpc4 amd64 106 ldd javac
> libthread.so.1 => /usr/lib/amd64/libthread.so.1
> libjli.so => /usr/local/jdk1.7.0_07/bin/amd64/../../jre/lib/amd64/jli/libjli.so
> libdl.so.1 => /usr/lib/amd64/libdl.so.1
> libc.so.1 => /usr/lib/amd64/libc.so.1
> libm.so.2 => /usr/lib/amd64/libm.so.2
>
> sunpc4 amd64 107 strings javac
> -J-ms8m
> Unknown
> 1.7.0_07-b10
> /classes
> /lib/tools.jar
> com.sun.tools.javac.Main
> java
> JAR file
> Main class
> /jdk
> /usr/jdk
>
>
> Has anybody solved this problem without installing two complete
> and separate versions of Java? Does anybody know about a Java
> package for Linux which behaves in the same manner as the package
> for "Solaris x86_64"? Is sombody from Oracle in this group who
> can provide such a package on the Java web page? Thank you very
> much for any suggestions in advance.
>
>
> Kind regards
>
> Siegmar
>
>
>
>
>
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