Computational Resources used by CORe

Someone once quipped that HPC is way of converting a CPU problem into an I/O 
problem.  CORe is of modest resolution (0.7 degrees) but with 80 ensemble members.  
The 80 members eats up the disk space.  The R&D CORe was run on a machine using 
20 cores of 28 cpus per node. Each 6 hour cycle created 16,000 files* of which 
3200 files were needed for the next cycle and post processing.  In the end, a 
typical user may only desire four files from the 6 hour cycle.  Anyways 16,000 
files per 6 hour cycle means 1.9 million files per month or 23 million files per 
year.  Of course, we were running multiple streams at one time.  I am not going to 
mention what fraction of the disk space of a NOAA R&D computer was used before 
a sys admin sent his first email.

* code was written so it looked for files in its runtime directory, so 
file was repeated for each of the 80 enemble members.