






                       San Diego Supercomputer Center (SDSC)


            _A_d_d_r_e_s_s:
            San Diego Supercomputer Center
            PO Box 85608
            San Diego, CA 92138-5608

            _E-_m_a_i_l: consultant@sdsc.edu

            _P_h_o_n_e: (619)534-5000


            _D_e_s_c_r_i_p_t_i_o_n

            The San Diego Supercomputer Center (SDSC)  is  one  of  five
            national  supercomputer  centers  funded  primarily  by  the
            National Science Foundation.   Its  mission  is  to  provide
            supercomputer  time to scientists and researchers around the
            country.  SDSC is located on the campus of the University of
            California at San Diego and is administered by General Atom-
            ics.  Major policy guidance comes from a steering  committee
            representing  the  25  SDSC  consortium  institutions, which
            include major California universities and  all  campuses  of
            the  University  of  California  and  the  California  State
            University.

            Computer resources.  SDSC offers access to

            o+    A CRAY X-MP/48 supercomputer (peak speed  840  MFLOPS),
                 running  the  Cray Time-Sharing System (CTSS) operating
                 system and 120 UNIX utilities, with 8 million words  of
                 memory and 13.2 GBytes of local disk storage.

            o+    An SCS-40 minisupercomputer  (peak  speed  44  MFLOPS),
                 running  CTSS, with 16 million words of memory, 16 mil-
                 lion words of extended memory, and 4  GBytes  of  local
                 disk storage.

            o+    A  Supertek  S-1  minisupercomputer  (peak   speed   25
                 MFLOPS),  running  CTSS,  with  four  million  words of
                 memory and 2.4 GBytes of  local  disk  storage.   (This
            _________________________
            The information in this section is provided  in  accor-
            dance  with the copyright notice appearing at the front
            of this guide.




            June 21, 1989               NNSC       Section 1.10,  Page 1








                 machine is being used for system development and  test-
                 ing  but  will be made available to users at some point
                 in the future.)

            o+    A long-term file storage system (CFS) consisting of  60
                 Gbytes  of  disk  storage and essentially infinite tape
                 cartridge storage.

            These systems are available 24 hours a day, 7 days  a  week,
            except  during scheduled maintenance and system development.
            In 1988, these systems were  available  nearly  97%  of  the
            time.

            Two printed manuals (An Introductory  User  Guide  and  Sum-
            maries)  are  mailed  to all new users. Two-day introductory
            workshops are held approximately once per month on-site  but
            are  also  available  at your location with confirmed atten-
            dance of at least 20.  Other sources of information  include
            SDSC's  monthly newsletter, Gather/Scatter, an annual report
            of science highlights, more than 130 online  documents,  and
            40 electronic bulletin boards.

            SDSC offers telephone and E-mail consulting  8:00  a.m.-5:00
            p.m.  (Pacific time) M-F at (619)534-5100.

            _N_e_t_w_o_r_k _A_c_c_e_s_s

            SDSC is on the Internet.  It is also attached to SPAN,  HEP-
            net, MFEnet and CSUnet.

            _W_h_o _C_a_n _U_s_e _T_h_e _C_e_n_t_e_r

            How to apply for time.   31,000  CPU  hours  each  year  are
            available for academic and industrial use.  Most of the time
            is allocated at no charge to researchers  on  the  basis  of
            peer  review by the SDSC Allocation Committee or by the SDSC
            consortium institutions.  Allocations by the  committee  are
            made  independent  of  institutional  affiliation or funding
            source.  The projects must be non-proprietary.  Applications
            are  accepted four times per year (for 12-month allocations)
            for time beginning 1 January, 1 April, 1 July, or 1 October.
            Applications  must be received at least 45 days prior to the
            quarter in which you request your allocation to begin (e.g.,
            the  deadline  is  15  February for time beginning 1 April).
            For  more  information,  contact  the  SDSC  consultants  at
            (619)534-5100  and request the Overview brochure (which con-
            tains the application form).




            June 21, 1989               NNSC       Section 1.10,  Page 2








            A small fraction of time for allocation is  available  on  a
            non-peer-reviewed  basis to industrial cost-sharing partici-
            pants.  Such projects may be proprietary but must be unclas-
            sified.   For  more  information,  contact  Bob  Randall  at
            (619)534-5060.














































            June 21, 1989               NNSC       Section 1.10,  Page 3


