Hp XC System 2.x Software Manuel d'utilisateur Page 43

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3.2.4 Pathscale Compilers
Compilers in the Pathscale EKOPath Version 2.1 Compiler Suite are supported
on HP XC4000 systems only. See the following Web site for more information:
http://www.pathscale.com/ekopath.html.
3.2.5 MPI Co mpiler
The HP XC System So ftware inclu des MPI. The MPI library on the HP XC system supports HP
MPI 2.1.
3.3 Checking Nodes and Partitions Before Running Jobs
Before launching an application, you can determine the availability and status of the system’s
nodes and partitions. Node and partition in formation is useful to have before launching a job so
that you can launch the job to properly match the resources that are a vailable on the system.
When invo ked with no options, the SLUR M sinfo command returns information about node
availability and partitions, along with other information:
$ sinfo
PARTITION AVAIL TIMELIMIT NODES STATE NODELIST
lsf up infinite 4 down* n[12-15]
slurm* up infinite 2 idle n[10-11]
The previous sinfo output shows that there are two partitions on the system:
one for LSF-HPC jobs
one for SLURM jobs
The asterisk in the PARTITION column indicates the default partition. An ast erisk in the
STATE column indicates nodes that are curren tly not responding.
Refer to Chapter 6 for information about us ing the sinfo command. The SLURM sinfo
manpage also provides detailed information about the sinfo command.
3.4 Interrupting a Job
A job launched by the srun command can be interrupted by send ing a signal to the command
by issuing one or more Ctrl/C key s equen ces. Signals sent to the srun comm and are
automatically forwarded to the tasks that it is controlling.
The Ctrl/C key sequence will report the state of all tasks associated w ith the srun command.
If the Ctrl/C key sequence is entered twice within one second, t he associated SIGINT signal
will be sent to all tasks. If a third Ctrl/C key sequence is entered, the job will be terminated
without waiting for remote tasks to exit.
The Ctrl/Z key sequence is ignored.
3.5 Setting Debugging O ptions
In gen eral, the debuggin g information for your application tha t is needed by most debuggers can
be produced by supplyin g the -g switch to the compiler. For more specific information about
debugging options, refer to the documentation and manpages associated with your compiler.
3.6 Developing Serial Applications
This section describes how to build and run serial applications in the HP XC environment.
The following topics are covered:
Developing Applications 3-3
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