Research Initiation:  Distributed Operating Systems and     Machine Architecture:  Reducing the Semantic Gap
{'Code': '05010300', 'Directorate': {'Abbreviation': 'CSE', 'LongName': 'Direct For Computer & Info Scie & Enginr'}, 'Division': {'Abbreviation': 'CCF', 'LongName': 'Division of Computing and Communication Foundations'}}
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New and innovative hardware mechanisms for efficient message                    passing and object invocation in a distributed computing system                 are being designed and developed.  Operating systems structures                 for a distributed environment follow one of two paradigms:                      message passing or object invocation.  For such a system to                     perform efficiently basic messages must be passed with short                    delays.  The limiting factor, especially for short messages, is                 typically not network bandwidth but processing overhead.                        Resources in an operating system can also be viewed as a                        collection of objects.  Previous research of the principal                      investigator has shown that object invocation is dependent on the               efficiency of memory management.                                                                                                                                The principal investigator is currently extending his previous                  performance studies on message-based systems, verifying these                   studies through experimentation, investigating hardware support                 for networked shared-memory multiprocessors; developing new                     hardware mechanisms for efficient object invocation, and                        evaluating these mechanisms through simulation and                              experimentation.
{'FirstName': 'Umakishore', 'LastName': 'Ramachandran', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Umakishore Ramachandran', 'EmailAddress': 'rama@cc.gatech.edu', 'NSF_ID': '000336913', 'StartDate': '06/15/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Georgia Tech Research Corporation', 'CityName': 'ATLANTA', 'ZipCode': '303186395', 'PhoneNumber': '4048944819', 'StreetAddress': '926 DALNEY ST NW', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Georgia', 'StateCode': 'GA', 'CONGRESSDISTRICT': '05', 'CONGRESS_DISTRICT_ORG': 'GA05', 'ORG_UEI_NUM': 'EMW9FC8J3HN4', 'ORG_LGL_BUS_NAME': 'GEORGIA TECH RESEARCH CORP', 'ORG_PRNT_UEI_NUM': 'EMW9FC8J3HN4'}
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{'Code': '4715', 'Text': 'COMPUTER SYSTEMS ARCHITECTURE'}
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