Utopia: a load sharing facility for large, heterogeneous distributed computer systems
Software—Practice & Experience
OSF DCE: guide to developing distributed applications
OSF DCE: guide to developing distributed applications
Journal of Parallel and Distributed Computing - Special issue on heterogeneous processing
Extensible file system (ELFS): an object-oriented approach to high performance file I/O
OOPSLA '94 Proceedings of the ninth annual conference on Object-oriented programming systems, language, and applications
Using MPI: portable parallel programming with the message-passing interface
Using MPI: portable parallel programming with the message-passing interface
PVM: Parallel virtual machine: a users' guide and tutorial for networked parallel computing
PVM: Parallel virtual machine: a users' guide and tutorial for networked parallel computing
Portable run-time support for dynamic object-oriented parallel processing
ACM Transactions on Computer Systems (TOCS)
A security architecture for computational grids
CCS '98 Proceedings of the 5th ACM conference on Computer and communications security
The grid
Future Generation Computer Systems - Special issue on metacomputing
A new model of security for metasystems
Future Generation Computer Systems - Special issue on metacomputing
LegionFS: a secure and scalable file system supporting cross-domain high-performance applications
Proceedings of the 2001 ACM/IEEE conference on Supercomputing
A Case for NOW (Networks of Workstations)
IEEE Micro
PUNCH: Web Portal for Running Tools
IEEE Micro
Capacity and Capability Computing Using Legion
ICCS '01 Proceedings of the International Conference on Computational Sciences-Part I
A Flexible Security System for Metacomputing Environments
HPCN Europe '99 Proceedings of the 7th International Conference on High-Performance Computing and Networking
A Resource Management Architecture for Metacomputing Systems
IPPS/SPDP '98 Proceedings of the Workshop on Job Scheduling Strategies for Parallel Processing
The Legion support for advanced parameter-space studies on a grid
Future Generation Computer Systems - Grid computing: Towards a new computing infrastructure
Nimrod: a tool for performing parametrised simulations using distributed workstations
HPDC '95 Proceedings of the 4th IEEE International Symposium on High Performance Distributed Computing
Legion-a view from 50,000 feet
HPDC '96 Proceedings of the 5th IEEE International Symposium on High Performance Distributed Computing
HPDC '96 Proceedings of the 5th IEEE International Symposium on High Performance Distributed Computing
A Directory Service for Configuring High-Performance Distributed Computations
HPDC '97 Proceedings of the 6th IEEE International Symposium on High Performance Distributed Computing
Grid-Based File Access: The Legion I/O Model
HPDC '00 Proceedings of the 9th IEEE International Symposium on High Performance Distributed Computing
Exploiting Data-Flow for Fault-Tolerance in a Wide-Area Parallel System
SRDS '96 Proceedings of the 15th Symposium on Reliable Distributed Systems
Studying Protein Folding on the Grid: Experiences Using CHARMM on NPACI Resources under Legion
HPDC '01 Proceedings of the 10th IEEE International Symposium on High Performance Distributed Computing
Support for extensibility and site autonomy in the Legion grid system object model
Journal of Parallel and Distributed Computing - Special issue on computational grids
Legion: The Next Logical Step Toward a Nationwide Virtual Computer
Legion: The Next Logical Step Toward a Nationwide Virtual Computer
Using Reflection for Flexibility and Extensibility in a Metacomputing Environment
Using Reflection for Flexibility and Extensibility in a Metacomputing Environment
Basic Fortran Support in Legion
Basic Fortran Support in Legion
The Anatomy of the Grid: Enabling Scalable Virtual Organizations
International Journal of High Performance Computing Applications
Unibus: a contrarian approach to grid computing
The Journal of Supercomputing
Security in grid computing: A review and synthesis
Decision Support Systems
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Grids are collections of interconnected resources harnessed to satisfy various needs of users. Legion and Globus are pioneering grid technologies. Several of the aims and goals of both projects are similar, yet their underlying architectures and philosophies differ substantially. The scope of both projects is the creation of worldwide grids; in that respect, they subsume several distributed systems technologies. However, Legion has been designed as a virtual operating system (OS) for distributed resources with OS-like support for current and expected future interactions among resources, whereas Globus has long been designed as a "sum of services" infrastructure, in which tools are developed independently in response to current needs of users. We compare and contrast Legion and Globus in terms of their underlying philosophy and the resulting architectures, and we discuss how these projects converge in the context of the new standards being formulated for grids.