到目前为止,并行 STL 似乎只不过是一种用奇特的函数语法表达parallel for loops的方式。实际上, STL 提供了for_each和transform_reduce之外的大量算法,这些算法对表达数值方法非常有用,包括排序和搜索算法。 exclusive_scan算法计算累积和,值得特别提及,因为它被证明通常对非结构化数据的重新索引
In general, there may be some parallel loops for which the amount of useful work performed is not enough to justify the overhead. For such loops, there may be appreciable slowdown. In the following figure, a loop is parallelized. However the barriers, represented by horizontal bars, introduce...
$ ctest --parallel 4 Start 10: j Start 9: i Start 8: h Start 5: e 1/10 Test #5: e ... Passed 1.51 sec Start 7: g 2/10 Test #8: h ... Passed 2.51 sec Start 6: f 3/10 Test #7: g ... Passed 1.51 sec Start 3: c 4/10 Test #9: i ......
Fixed a performance issue when anunrollconstruct is in a loop nest bound to an outerparallel forconstruct. Fixed potential unsafe vectorization of some loops that are bound toparallel for. Improved performance of some collapsed loops by choosing a more optimal data size for the collapsed loop IV....
parallel differentiation of OpenMP-parallel loops Lie derivatives of scalar, vector and covector fields and many bug fixes. Furthermore the source code was adapted to allow a compilation with WINDOWS compilers. See fileÌNSTALLfor generic installation instructions and special instructions for the install...
P0394R4 Parallel Algorithms Should terminate() For Exceptions P0452R1 Unifying <numeric> Parallel Algorithms VS 2017 15,7 G P0025R1 clamp() VS 2015.3 P0030R1 hypot(x, y, z) VS 2017 15.7 P0031R0 constexpr For <array> (Again) And <iterator> VS 2017 15.3 17 P...
(SPARC) Shows which loops are parallelized and which are not. Gives a short reason for not parallelizing a loop. The -xloopinfo option is valid only if -xautopar, or -xparallel, or -xexplicitpar is specified; otherwise, the compiler issues a warning....
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EN数据库的管理是一个非常专业的事情，对数据库的调优、监控一般是由数据库工程师完成，但是开发人员也...
loops -mno-align-loops -missue-rate=number -mbranch-cost=number -mmodel=code-size-model-type -msdata=sdata- type -mno-flush-func -mflush-func=name -mno-flush-trap -mflush-trap=number -G num M32C Options -mcpu=cpu -msim -memregs=number M680x0 Options -march=arch -mcpu=cpu -...