ASP GAU Account & Supercomputing Access. Gabriele Pfister. NCAR’s S cientific C omputing D ivision SCD's goal is to enable the best atmospheric research in the world by providing and advancing high-performance computing technologies.
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ASP GAU Account
NCAR’s Scientific Computing Division
SCD's goal is to enable the best atmospheric research in the world by providing and advancing high-performance computing technologies.
SCD offers computing, research datasets, data storage, networking, and data analysis tools to advance NCAR's scientific research agenda.
Computer Architectures (I)
SCD’s machines are UNIX-based parallel computing architectures
Production Supercomputing Systems run tasks such as large simulations or models that require massive computing and data-handling resources.
IBM Cluster 1600 running AIX
IBM e1350 cluster running Linux
Data Analysis and Visualization Systems support data preprocessing prior to a job run and data postprocessing after a run
Tempest (SGI Origin3800 running IRIX)
Computer Architectures (II)
Mass Storage System (MSS)
NCAR's Mass Storage System is a central, large-scale data archive that stores data used and generated by climate models and other programs executed on NCAR's compute servers.
On 21 July 2004,
NCAR's MSS surpassed
2 petabytes of data storage.
Some of the data stored on the MSS originate from field experiments and observations, however, the bulk of the data is generated by global climate-simulation models, mesoscale weather models, and other earth-science models that run on supercomputer.
Note: GAUs are also charged for storing files in the mass storage system (MSS) or file transfers from/to MSS to/from other machines
ASP GAU account
ASP GAU account number: 54042108 (also known as “project number”)
Needs to be specified in the batch scripts
ASP account number is NOT your default account number
Therefore: everybody needs a second (default) GAU account
(e.g. divisional GAU account)
University account - small request form for 1500 GAUs
These GAUs do not expire every month, one-time allocation
Example: IBM Job Script
# @ job_name = mz4.3.noaa_frc_xnox_RF_2
# @ job_type = parallel
# @ account_no = 54042108
# @ ja_report = yes
# @ output = $(job_name).out
# @ error = $(job_name).err
# @ wall_clock_limit = 2000
# @ node_usage = not_shared
# @ network.MPI = csss,not_shared,us
# @ node = 2
# @ total_tasks = 16
# @ class = com_ec32
32- or 8-processor nodes
How to check GAU Status and Usage?
CIT username and password for login
Information on SCD’s Machines
User Manuals for computing facilities and mass storage system
SCD’s Support and Consulting Services
SCD’s consulting group: possible to get help on the weekends
or in the evenings (email)
Email: [email protected]
Phone: 303 497 1278
SCD’s Daily Bulletin (machine downtimes, etc.)