An implementation on the six-processor Encore shared memory system showed that efficiency levels of 80 to 90% can be obtained. The proposed algorithm is general since there is no predefined logical array size, no predefined limit on the number of spare cells, no predefined amount of ...
The total execution time is calculated from the moment when the algorithm starts executing to the moment it stops. If all the processors do not start or end execution at the same time, then the total execution time of the algorithm is the moment when the first processor started its execution...
The third step of the sort and sweep algorithm suffers mainly from execution divergence. In the implementation described above, the threads that happen to land on an end point will terminate immediately, and the remaining ones will walk the array for a variable number of steps. Threads ...
We present the E♯compiler and runtime library for the ‘F’ subset of the Fortran 95 programming language. ‘F’ provides first-class support for arrays, allowing Eto implicitly evaluate array expressions in parallel using the SPU co-processors of the Cell Broadband Engine. We present performa...
US5317755 * Apr 10, 1991 May 31, 1994 General Electric Company Systolic array processors for reducing under-utilization of original design parallel-bit processors with digit-serial processors by using maximum common divisor of latency around the loop connection...
Given that addition is commutative, one may split the array into smaller portions where concurrent threads compute partial sums. The partial sums can then be added to compute the total sum. Because threads can operate independently on different areas of an array for this algorithm, you will see...
Given that addition is commutative, one may split the array into smaller portions where concurrent threads compute partial sums. The partial sums can then be added to compute the total sum. Because threads can operate independently on different areas of an array for this algorithm, you will see...
THSORT: A Single-Processor Parallel Sorting AlgorithmTHSORT:单机并行排序算法并行I/O单机并行排序THSORT(TsinghuaSORTPennySortSorting is an important operation of transaction processing. It is a relatively mature field, as many algorithms for memory sorting, disk sorting and parallel sorting have come ...
更具体的scheduling algorithm可以参考本百科的相应章节 【Placement,指如何将实例映射到虚拟处理器】 其实是在有并行时对schedule各维度的语义细化/拆分:par for对应的维度的具体值可理解为processor;一个额外的affine function;一般会尽可能减少processor内部的依赖,即减少communication(具体场景下,对多面体模型的解读)...
Becher, "Mapping Massive SIMD Parallelism onto Vector Architectures for Simulation", Software-Practice and Experience, vol. 19(8), pp. 739-756, Aug. 1989. J.C. Tilton, "Porting and Interative Parallel Region Growing Algorithm from the MPP to the MasPar MP-1", The 3rd Symposium on the...