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U.S. Department of Energy
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FORTRAN implementation of a network executive under IBM's VM/CMS

Conference ·
OSTI ID:5255126
The Lawrence Berkeley Laboratory Computation Department has attached an IBM-4331 to a heterogeneous local network. The network, named THC, uses Network Systems Corporation HYPERchannel hardware to implement a general process-to-process communication scheme. It appears to the user as an extension of the local operating system accessed by a subroutine call. The executive multiprocesses requests from different user virtual machines and exchanges messages with other nodes on the network. We describe an assembly-language module, occupying one page of memory, which allows the straightforward CMS-FORTRAN implementation of such an executive as a virtual machine, requiring no modifications whatsoever to the standard operating system. We then describe our network executive as an example of its use.
Research Organization:
Lawrence Berkeley Lab., CA (USA)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
5255126
Report Number(s):
LBL-14264; CONF-820825-1; ON: DE82014990
Country of Publication:
United States
Language:
English