For example "host1*2" is equivalent to "host1,host1".

Still needs more work

Conflicts:
	META
	NEWS

Previously if the required node has no available CPUs left, then other
nodes in the job allocation would be used

test1.70   Validates that srun standard input and output work with binary files.
test1.71   Validates that srun exit code matches that of a test program.

We're having some trouble getting our slurm jobs to successfully
restart after a checkpoint.  For this test, I'm using sbatch and a
simple, single-threaded executable.  Slurm is 2.5.4, blcr is 0.8.5.
I'm submitting the job using sbatch:

$ sbatch -n 1 -t 12:00:00 bin/bowtie-ex.sh

I am able to create the checkpoint and vacate the node:

$ scontrol checkpoint create 137
.... time passes ....
$ scontrol vacate 137

At that point, I see the checkpoint file from blcr in the current
directory and the checkpoint file from Slurm
in /var/spool/slurm-llnl/checkpoint.  However, when I attempt to
restart the job:

$ scontrol checkpoint restart 137
scontrol_checkpoint error: Node count specification invalid

In slurmctld's log (at level 7) I see:

[2013-05-29T12:41:08-07:00] debug2: Processing RPC: REQUEST_CHECKPOINT(restart) from uid=*****
[2013-05-29T12:41:08-07:00] debug3: Version string in job_ckpt header is JOB_CKPT_002
[2013-05-29T12:41:08-07:00] _job_create: max_nodes == 0
[2013-05-29T12:41:08-07:00] _slurm_rpc_checkpoint restart 137: Node count specification invalid

Rename slurm_step_ctx_params_t field from "mem_per_cpu" to "pn_min_memory".
Job step now accepts memory specification in either per-cpu or per-node basis.

Uninitialized variables resulted in error of
"cons_res: sync loop not progressing, holding job #"