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This paper presents techniques and tools for creating and animating virtual actors in real scenes. Several problems are explained: real objects hidden by virtual actors and virtual actors hidden by real objects, collision detection between the virtual acto ...
With the broad range of motion capture devices available on the market, it is now commonplace to directly control the limb movement of an avatar during immersion in a virtual environment. Here, we study how the subjective experience of embodying a full-bod ...
We have developed a new technique for evaluating cache coherent, shared-memory computers. The Wisconsin Wind Tunnel (WWT) runs a parallel shared-memory program on a parallel computer (CM-5) and uses execution-driven, distributed, discrete-event simulation ...
This paper describes a kernel interface that provides an untrusted user-level process (an executive) with protected access to memory management functions, including the ability to create, manipulate, and execute within subservient contexts (address spaces) ...
We are developing Munin y , a system that allows pro grams written for shared memory multiprocessors to be executed efficiently on distributed memory machines. Thus, Munin overcomes the architectural limitations of shared memory machines, while maintain ...
This paper compares the performance of three implementations of simplified pattern matching instruction. The fastest version was microprogrammed on a VAX-11/750, the next fastest was written for a Reduced Instruction Set. Computer (RISC I) developed at Ber ...
Presents the μ-machine which is a network of abstract machines. After a survey of these abstract machines, problems of intercommunications are explained. Researches in the areas of data portability and machine-independent I/O are discussed. The last par ...
The paper discusses implementations of fine-grain memory access control, which selectively restricts reads and writes to cache-block-sized memory regions. Fine-grain access control forms the basis of efficient cache- coherent shared memory. The paper focus ...
Message passing and shared memory are two techniques parallel programs use for coordination and communication. This paper studies the strengths and weaknesses of these two mechanisms by comparing equivalent, well-written message-passing and shared-memory p ...
