9.7 Notes for Rocks Users

Rocks does not include LAM/MPI or HDF5 but does include several different MPICH releases, located in /opt. MPE is included as part of Rocks with each release. The MPE libraries are included with the MPICH libraries, e.g., /opt/mpich/gnu/lib. Rocks includes the jumpshot3 script as well, e.g., /opt/mpich/gnu/share/jumpshot-3/bin for MPICH. (Rocks also includes upshot.)

By default, Rocks does not include Java. There is, however, a Java roll for Rocks. To use jumpshot3, you'll need to install the appropriate version of Java. You can look in the jumpshot3 script to see what it expects. You should see something like the following near the top of the file:

...

JAVA_HOME=/usr/java/j2sdk1.4.2_02

...

JVM=/usr/java/j2sdk1.4.2_02/bin/java

...

You can either install j2sdk1.4.2-02 in /usr/java or you can edit these lines to match your Java installation. For example, if you install the Java package described in the last section, you might change these lines to

JAVA_HOME=/usr/local/src/j2sdk1.3.1

JVM=/usr/local/src/j2sdk1.3.1/bin/java

Adjust the path according to your needs.