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- NCAR - National Center For Atmospheric Research
-
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- _A_d_d_r_e_s_s:
- Visitor/User Information
- NCAR/Scientific Computing Division
- P.O. Box 3000
- Boulder, Colorado 80307-3000
-
- _E_m_a_i_l: scdinfo@ncar.ucar.edu
-
- _P_h_o_n_e: (303) 497-1225
-
-
- _D_e_s_c_r_i_p_t_i_o_n
-
- The Scientific Computing Division (SCD) of the National
- Center for Atmospheric Research (NCAR) provides supercomput-
- ing resources and services that support research in the
- atmospheric, oceanographic, and related sciences. We
- emphasize facilities for the development and execution of
- large models and for the archival and manipulation of large
- datasets.
-
- Computer Hardware
-
- o+ CRAY Y-MP8/864 with 8 processors; CRAY Y-MP2D with 2
- processors
-
- o+ 64 Mwords of main memory for the Y-MP8, 16 Mwords for
- the Y-MP2
-
- o+ 48 Mword maximum memory per job for batch; 16 Mwords
- for interactive
-
- o+ 6.0-ns clock for both Crays; a measured peak rate of
- over 1 Gflops has been achieved with a multitasked
- ocean model
-
- o+ Vector processing hardware for both Crays
-
- _________________________
- The information in this section is provided in accor-
- dance with the copyright notice appearing at the front
- of this guide.
-
-
-
-
- October 16, 1992 NNSC Section 1.4, Page 1
-
-
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- o+ 256 Mword SSD for Y-MP8 (1000 Mbyte/sec channel), 128
- Mword SSD for Y-MP2
-
- o+ 78 Gbytes of local storage for the Y-MP8, 20 Gbytes of
- local storage for the Y-MP2
-
- o+ Unix front end
-
- o+ NCAR Mass Storage System (MSS) is a hierarchical file
- storage system with no limit per user. The MSS has a
- 120 Gbyte disk farm and 115,000 IBM 3480/3490 car-
- tridges. It features a StorageTek 4400 Automated Car-
- tridge System capable of holding 6,000 cartridges, or
- a terabyte of information. Currently, MSS stores 29
- terabytes of data. Extremely high data transfer to
- the Crays; accessible from front end
-
- o+ Connection Machine 2 (8,000 processors and floating-
- point hardware)
-
- o+ Gateway for NCAR's Internet Remote Job Entry System
- (IRJE). Allows users to create and submit Cray jobs
- from their local hosts connected to the Internet. Out-
- put is automatically shipped back to the remote host
-
-
- Application Libraries
-
- Application libraries and documentation are available via
- the Distributed Software Libraries (dsl) utility. To access
- dsl, telnet to dsl.ucar.edu and log in as dsl. When
- prompted for the password, type software.
-
-
- ALFPACK AMOSLIB* ECMFFT EDA
- EISPACK EISPKD FISHPAK FITPACK*
- FUNPACK IMSL* CRAYFISH* LINPACK
- FFTPACK MINPACK MUDPACK* NAG*
- ODEPACK SPHERE SLATEC SSDLIN
- STARPAC* NCARM NCARO
-
-
- *Documentation only available for these libraries over the
- dsl utility.
-
- Graphics
-
- NCAR Graphics, Version 3.1
-
-
-
- October 16, 1992 NNSC Section 1.4, Page 2
-
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- Training
-
- o+ UNICOS Orientation Class: One-day class to introduce
- Unix/UNICOS programming tools and the NCAR computing
- environment.
-
- o+ Unix Basics Class: Two-day introduction to the basics
- of Unix
-
- o+ Remote site visits are granted to sites with a signi-
- ficant number of users
-
- o+ User conference held every two years to update users
- on new developments and new directions in computing at
- NCAR
-
- o+ Site liaison workshops held biennially: intensive,
- in-depth presentations on specific aspects of the NCAR
- computing facility
-
- o+ NCAR Graphics on and off-site workshops and Fortran
- optimization workshops
-
-
- Collaborative Research
-
- o+ Real-time computing during field programs
-
- o+ Classroom grants of computer time
-
- o+ Computer Hardware, Advanced Mathematics, and Model
-
- o+ Model Evaluation Consortium for Climate Assessment
- (MECCA). MECCA is evaluating the reliability of
- current global climate simulation models.
-
-
- Documentation
-
- o+ Documentation available via anonymous FTP to
- ftp.ucar.edu. Listing is in /docs/README file.
-
- o+ User Documentation Catalog containing references both
- to SCD-supported and vendor documentation. Available
- online via anonymous FTP to ftp.ucar.edu with the
- filename /docs/catalog/userdoc.catalog
-
- o+ Online documentation available for most of the
-
-
-
- October 16, 1992 NNSC Section 1.4, Page 3
-
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-
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- utilities in the supported libraries via dsl
-
- o+ Scientific Computing Division (SCD) hardcopy documen-
- tation available free except for the Graphics manual
-
- o+ NCAR UNICOS Primer: contains necessary basic informa-
- tion to begin computing at NCAR. Uses step- by-step
- examples to create, submit, and receive output from
- the Crays
-
- o+ Daily Bulletin: Online source of up-to-date informa-
- tion on the computing systems
-
- o+ Newsletter: SCD Computing News (free)
-
- o+ Annual planning report: Supercomputing: The View From
- NCAR
-
- o+ NCAR Annual Report
-
- o+ NCAR Annual Scientific Report
-
-
- Consulting
-
- o+ Phone, 8-5 MST weekdays; walk-in consulting available
- for visitors and local users. Extended consulting
- available by appointment
-
- o+ Email consulting available from Internet, BITNET, and
- Omnet
-
- o+ Specialized consulting for software libraries, net-
- working and data communications, optimization, multi-
- tasking, Cray I/O optimization, segmentation (overlay-
- ing) of large applications, math algorithms, NCAR
- Graphics, IBM PC/AT and Macintosh terminal emulators,
- and Unix and UNICOS operating systems
-
- o+ Visitor facilities include access 24 hrs/day, 7
- days/week, SUN Workstations, IBM PCs, and Macintoshes
- for terminal or standalone use, Canon microfilm/fiche
- reader/printers, community telephone for business use,
- documentation library (including vendor documentation)
-
-
- Graphics Support
-
-
-
-
- October 16, 1992 NNSC Section 1.4, Page 4
-
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-
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- o+ Text and Graphics System for both on-site and off-site
- users, providing 16-mm film, 35-mm color slides, 4x5"
- color film, microfiche, b&w hardcopy, and videotape
- (VHS, SVHS, Umatic-SP).
-
- o+ Xerox 4050 laser printers for paper graphical output
-
- o+ Color hardcopy output is planned soon
-
- o+ CGM metafile support
-
- o+ Remote graphics support includes an NCAR Graphics
- translator (ctrans) on the front end
-
- o+ Output mailed to users at remote sites
-
-
- Strengths and Limitations
-
- Strengths
-
- o+ High-performance vector processing
-
- o+ Extensive user support services
-
- o+ SSD for large I/O applications
-
- o+ Extensive data archives for atmospheric and oceano-
- graphic research
-
- o+ High-volume, fast access mass storage system
-
- o+ Extremely high volume graphics output capabilities
-
- o+ Video support and 16-mm movie making
-
- o+ Remote job entry system
-
-
- Limitations
-
- o+ Few applications outside atmospheric sciences
-
- o+ Limited memory
-
-
- Administrative
-
-
-
-
- October 16, 1992 NNSC Section 1.4, Page 5
-
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-
-
- o+ Allocations are open to university researchers with
- NSF grants in atmospheric, oceanographic, and related
- sciences; grant requests are reviewed by a peer review
- board composed of NCAR staff and university research-
- ers
-
- o+ Allocations are also available to government agencies
- on a cost-recovery basis
-
- _N_e_t_w_o_r_k _A_c_c_e_s_s
-
- NCAR has access to several national networks using the
- TCP/IP protocol, including NSFNET (backbone node) and NASA's
- Science Network.
-
- _W_h_o _C_a_n _U_s_e _T_h_e _C_e_n_t_e_r
-
- SCD's computing resources are available to scientists and
- researchers with NSF projects in the atmospheric, oceano-
- graphic, and related sciences. Accounts must be approved
- through SCD. Once approved, resources are allocated. Time
- on the Y-MP8/864 is available to government agencies on a
- cost-recovery basis. Users with NSF grants should contact
- John Adams, NCAR/SCD, P.O. Box 3000, Boulder CO 80303, for
- an application form.
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- October 16, 1992 NNSC Section 1.4, Page 6
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