National Energy Research Supercomputer Center


            _A_d_d_r_e_s_s:
            National Energy Research Supercomputer Center
            Lawrence Livermore National Laboratory
            PO Box 5509 L-561
            Livermore, CA 94550

            _E_m_a_i_l: consultant@nersc.gov

            _P_h_o_n_e: (415) 422-1544


            _D_e_s_c_r_i_p_t_i_o_n

            The NERSC provides state-of-the-art computational,  network,
            and    file    storage   resources   including   four   Cray
            supercomputers-a Cray XMP-22, a Cray-2 4/64, a Cray-2 4/128,
            and  a Cray-2 8/128.  All four Crays use the CTSS time-share
            operating system.  This system also currently provides  more
            than  150  UNIX  utilities  and is becoming POSIX compliant.
            The center operates twenty-four hours a day,  seven  days  a
            week.

            Archival storage includes an online fully automated  storage
            system  with 200 gigabytes of high-speed disk storage, and a
            magnetic tape cartridge system with a total of 3.6 terabytes
            of  slower  access  storage.  The slowest accesses are still
            under three minutes.

            An online information retrieval system is provided, offering
            more  than  23,000  pages  of  documentation  on  use of the
            center.  Printed hardcopy of all information is also  avail-
            able  to  all  users.   The BUFFER is published as a monthly
            newsletter.  Short notes in the form  of  printed  summaries
            are available.  Electronic bulletin boards are available for
            information about specialized topic areas.  A NEWS  capabil-
            ity   is  provided  for  daily  or  short-term  information.
            Several consultants  are  available  during  normal  working
            hours for individual help.

            _________________________
            The information in this section is provided  in  accor-
            dance  with the copyright notice appearing at the front
            of this guide.




            August 21, 1990             NNSC        Section 1.6,  Page 1








            _N_e_t_w_o_r_k _A_c_c_e_s_s

            The NERSC supports TCP/IP access  and  limited  (interactive
            only)  DECnet  network  access  in addition to its own "NSP"
            protocol suite.  Access  is  available  through  ESnet,  the
            Internet,  the Energy Sciences DECnet, Bitnet for electronic
            mail, TYMNET, and via dial-up modems.

            The NERSC also operates ESnet, a T1-based  backbone  network
            supporting both IP and DECnet.

            _W_h_o _C_a_n _U_s_e _T_h_e _C_e_n_t_e_r

            The NERSC provides computational  resources  to  researchers
            and  collaborators  sponsored  by  the Department of Energy,
            Office of Energy Research. Access to resources  is  provided
            through  a  DOE  allocation.  For information about applying
            contact JoAnne Revelli at revelli%nersc@nersc.gov  or  (415)
            422-4228,  or  Anita Winfield at winfield%nersc@nersc.gov or
            (415) 422-4022.































            August 21, 1990             NNSC        Section 1.6,  Page 2