Document sbcast command,

correct pointer to MPICH2 site, 
use different prompt within srun --allocate for clarity.

doc/html/quickstart.shtml

@@ -17,7 +17,8 @@ work.</p>
 <h2>Architecture</h2>
 <p>As depicted in Figure 1, SLURM consists of a <b>slurmd</b> daemon running on 
 each compute node, a central <b>slurmctld</b> daemon running on a management node 
-(with optional fail-over twin), and six utility programs: <b>srun</b>, <b>scancel</b>, 
+(with optional fail-over twin), and seven utility programs: <b>srun</b>, 
+<b>sbcast</b>, <b>scancel</b>, 
 <b>sinfo</b>, <b>srun</b>, <b>smap</b>, <b>squeue</b>, and <b>scontrol</b>.  
 All of the commands can run anywhere in the cluster.</p>
 
@@ -60,19 +61,29 @@ specific node characteristics (so much memory, disk space, certain required feat
 etc.). Besides securing a resource allocation, <span class="commandline">srun</span> 
 is used to initiate job steps. These job steps can execute sequentially or in 
 parallel on independent or shared nodes within the job's node allocation.</p>
+
+<p><span class="commandline"><b>sbcast</b></span> is used to transfer a file
+from local disk to local disk on the nodes allocated to a job. This can be 
+used to effectively use diskless compute nodes or provide improved performance 
+relative to a shared file system.</p>
+
 <p><span class="commandline"><b>scancel</b></span> is used to cancel a pending 
 or running job or job step. It can also be used to send an arbitrary signal to 
 all processes associated with a running job or job step.</p>
+
 <p><span class="commandline"><b>scontrol</b></span> is the administrative tool 
 used to view and/or modify SLURM state. Note that many <span class="commandline">scontrol</span> 
 commands can only be executed as user root.</p>
+
 <p><span class="commandline"><b>sinfo</b></span> reports the state of partitions 
 and nodes managed by SLURM. It has a wide variety of filtering, sorting, and formatting 
 options.</p>
+
 <p><span class="commandline"><b>squeue</b></span> reports the state of jobs or 
 job steps. It has a wide variety of filtering, sorting, and formatting options. 
 By default, it reports the running jobs in priority order and then the pending 
 jobs in priority order.</p>
+
 <p><span class="commandline"><b>smap</b></span> reports state information for 
 jobs, partitions, and nodes managed by SLURM, but graphically displays the 
 information to reflect network topology.</p>
@@ -166,8 +177,8 @@ SLURM to allocate resources for the job and then mpirun to initiate the
 tasks. For example:
 <pre>
 $ srun -n4 -A	# allocates four processors and spawns shell for job
-$ mpirun -np 4 a.out
-$ exit          # exits shell spawned by initial srun command
+&gt; mpirun -np 4 a.out
+&gt; exit          # exits shell spawned by initial srun command
 </pre>
 Note that any direct use of <span class="commandline">srun</span>
 will only launch one task per node when the LAM/MPI plugin is used.
@@ -195,14 +206,14 @@ Do not directly execute the <span class="commandline">srun</span> command
 to launch LAM/MPI tasks. For example: 
 <pre>
 $ srun -n16 -A     # allocates 16 processors and spawns shell for job
-$ lamboot
-$ mpirun -np 16 foo args
+&gt; lamboot
+&gt; mpirun -np 16 foo args
 1234 foo running on adev0 (o)
 2345 foo running on adev1
 etc.
-$ lamclean
-$ lamhalt
-$ exit             # exits shell spawned by initial srun command
+&gt; lamclean
+&gt; lamhalt
+&gt; exit             # exits shell spawned by initial srun command
 </pre>
 Note that any direct use of <span class="commandline">srun</span> 
 will only launch one task per node when the LAM/MPI plugin is configured
@@ -220,7 +231,7 @@ option to launch jobs. For example:
 $MPI_ROOT/bin/mpirun -TCP -srun -N8 ./a.out
 </pre></p>
 
-<p><a href="http:://www-unix.mcs.anl.gov/mpi/mpich2/"><b>MPICH2</b></a> jobs 
+<p><a href="http://www-unix.mcs.anl.gov/mpi/mpich2/"><b>MPICH2</b></a> jobs 
 are launched using the <b>srun</b> command. Just link your program with 
 SLURM's implementation of the PMI library so that tasks can communication 
 host and port information at startup. For example:
@@ -251,6 +262,6 @@ the base partition count.
 See <a href="bluegene.html">BlueGene User and Administrator Guide</a> 
 for more information.</p>
 
-<p style="text-align:center;">Last modified 11 April 2006</p>
+<p style="text-align:center;">Last modified 24 May 2006</p>
 
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