Scalable Parallel Geometric Hashing for Hypercube Simd Architectures
Scalable Parallel Geometric Hashing for Hypercube Simd Architectures
Isidore Rigoutsos
The book Scalable Parallel Geometric Hashing for Hypercube Simd Architectures was written by author Isidore Rigoutsos Here you can read free online of Scalable Parallel Geometric Hashing for Hypercube Simd Architectures book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Scalable Parallel Geometric Hashing for Hypercube Simd Architectures a good or bad book?
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'■ z" ;/ 1 ' Figure 4. Triple Product: the two stages. the data along each plane is spread into the entire cube, first spreading the data on the (i, 2/)-plane along the 2-axis, then the data on the (y, z)-plane along the x-axis. And finally the (i, z)-plane along the 2/-axis (see Figure 4). When completed, processor (i, j, k) will have received datum a, from (t, i, 0), datum bj from processor {0, j, k), and datum Ck from processor {i, 0, k) and thus has the triple product element (a, 6j, ct). 3... BUILDING-BLOCK ALGORITHMS 6 The operation of spreading data along a single axis that occurs during both phases can clearly be performed in 0(1, ) time (for the appropriate axis), since nearest neighbors are adjacent in the hypercube, but can in fact be completed in 0(\ogl, ) time. This is because a parallel prefix operation may be used. Namely, the operation is equivalent to a collection of concurrent parallel prefix computations with "copy from the left" as the binary associative operator. The parallel prefix computation makes use of a recursive doubling scheme to spread the data rapidly along the axis.
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