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Computing PointtoPoint Shortest Paths from External Memory
"... We study the ALT algorithm [19] for the pointtopoint shortest path problem in the context of road networks. We suggest improvements to the algorithm itself and to its preprocessing stage. We also develop a memoryefficient implementation of the algorithm that runs on a Pocket PC. It stores graph d ..."
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Cited by 56 (6 self)
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We study the ALT algorithm [19] for the pointtopoint shortest path problem in the context of road networks. We suggest improvements to the algorithm itself and to its preprocessing stage. We also develop a memoryefficient implementation of the algorithm that runs on a Pocket PC. It stores graph
Finding the k Shortest Paths
, 1997
"... We give algorithms for finding the k shortest paths (not required to be simple) connecting a pair of vertices in a digraph. Our algorithms output an implicit representation of these paths in a digraph with n vertices and m edges, in time O(m + n log n + k). We can also find the k shortest pat ..."
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Cited by 401 (2 self)
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We give algorithms for finding the k shortest paths (not required to be simple) connecting a pair of vertices in a digraph. Our algorithms output an implicit representation of these paths in a digraph with n vertices and m edges, in time O(m + n log n + k). We can also find the k shortest
PointtoPoint Shortest Path Algorithms with Preprocessing
"... This is a survey of some recent results on pointtopoint shortest path algorithms. This classical optimization problem received a lot of attention lately and significant progress has been made. After an overview of classical results, we study recent heuristics that solve the problem while examinin ..."
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Cited by 7 (0 self)
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This is a survey of some recent results on pointtopoint shortest path algorithms. This classical optimization problem received a lot of attention lately and significant progress has been made. After an overview of classical results, we study recent heuristics that solve the problem while
PointtoPoint Shortest Paths on Dynamic TimeDependent Road Networks
, 2009
"... The computation of pointtopoint shortest paths on timedependent road networks has many practical applications which are interesting from an industrial point of view. Typically, users are interested in the path leading to their destination which has the smallest travel time among all possible path ..."
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Cited by 4 (1 self)
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The computation of pointtopoint shortest paths on timedependent road networks has many practical applications which are interesting from an industrial point of view. Typically, users are interested in the path leading to their destination which has the smallest travel time among all possible
Reach for A∗: Efficient pointtopoint shortest path algorithms
 IN WORKSHOP ON ALGORITHM ENGINEERING & EXPERIMENTS
, 2006
"... We study the pointtopoint shortest path problem in a setting where preprocessing is allowed. We improve the reachbased approach of Gutman [16] in several ways. In particular, we introduce a bidirectional version of the algorithm that uses implicit lower bounds and we add shortcut arcs which reduc ..."
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Cited by 76 (6 self)
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We study the pointtopoint shortest path problem in a setting where preprocessing is allowed. We improve the reachbased approach of Gutman [16] in several ways. In particular, we introduce a bidirectional version of the algorithm that uses implicit lower bounds and we add shortcut arcs which
Treadmarks: Shared memory computing on networks of workstations
 Computer
, 1996
"... TreadMarks supports parallel computing on networks of workstations by providing the application with a shared memory abstraction. Shared memory facilitates the transition from sequential to parallel programs. After identifying possible sources of parallelism in the code, most of the data structures ..."
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Cited by 484 (37 self)
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TreadMarks supports parallel computing on networks of workstations by providing the application with a shared memory abstraction. Shared memory facilitates the transition from sequential to parallel programs. After identifying possible sources of parallelism in the code, most of the data structures
Composable memory transactions
 In Symposium on Principles and Practice of Parallel Programming (PPoPP
, 2005
"... Atomic blocks allow programmers to delimit sections of code as ‘atomic’, leaving the language’s implementation to enforce atomicity. Existing work has shown how to implement atomic blocks over wordbased transactional memory that provides scalable multiprocessor performance without requiring changes ..."
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Cited by 506 (42 self)
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Atomic blocks allow programmers to delimit sections of code as ‘atomic’, leaving the language’s implementation to enforce atomicity. Existing work has shown how to implement atomic blocks over wordbased transactional memory that provides scalable multiprocessor performance without requiring
A theory of memory retrieval
 PSYCHOL. REV
, 1978
"... A theory of memory retrieval is developed and is shown to apply over a range of experimental paradigms. Access to memory traces is viewed in terms of a resonance metaphor. The probe item evokes the search set on the basis of probememory item relatedness, just as a ringing tuning fork evokes sympath ..."
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Cited by 728 (81 self)
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sympathetic vibrations in other tuning forks. Evidence is accumulated in parallel from each probememory item comparison, and each comparison is modeled by a continuous random walk process. In item recognition, the decision process is selfterminating on matching comparisons and exhaustive on nonmatching
Fast pointtopoint shortest path computations with arcflags
 IN: 9TH DIMACS IMPLEMENTATION CHALLENGE [29
, 2006
"... We present a number of improvements of the basic variant of the arcflag acceleration (Lauther, 1997, 2004) for pointtopoint (P2P) shortest path computations on large graphs. Arcflags are a modification to the standard Dijkstra algorithm and are used to avoid exploring unnecessary paths during s ..."
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Cited by 15 (1 self)
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We present a number of improvements of the basic variant of the arcflag acceleration (Lauther, 1997, 2004) for pointtopoint (P2P) shortest path computations on large graphs. Arcflags are a modification to the standard Dijkstra algorithm and are used to avoid exploring unnecessary paths during
Memory Consistency and Event Ordering in Scalable SharedMemory Multiprocessors
 In Proceedings of the 17th Annual International Symposium on Computer Architecture
, 1990
"... Scalable sharedmemory multiprocessors distribute memory among the processors and use scalable interconnection networks to provide high bandwidth and low latency communication. In addition, memory accesses are cached, buffered, and pipelined to bridge the gap between the slow shared memory and the f ..."
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Cited by 735 (18 self)
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and the fast processors. Unless carefully controlled, such architectural optimizations can cause memory accesses to be executed in an order different from what the programmer expects. The set of allowable memory access orderings forms the memory consistency model or event ordering model for an architecture.
Results 1  10
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