{ int nThreads = 8; omp_set_num_threads( nThreads ); std::cout << std::endl; #pragma omp parallel for ordered for ( int i = 1; i <= 8; ++ i ) { #pragma omp ordered std::cout << "Thread " << omp_get_thread_num() << " is executing iteration " << i << " \n";...
编译制导指令以#pragma omp 开始,后边跟具体的功能指令,格式如:#pragma omp 指令[子句[,子句] …]。常用的功能指令如下: parallel:用在一个结构块之前,表示这段代码将被多个线程并行执行; for:用于for循环语句之前,表示将循环计算任务分配到多个线程中并行执行,以实现任务分担,必须由编程人员自己保证每次循环之间无...
An iteration of a loop must not execute the sameomp ordereddirective more than once. An iteration of a loop must not execute more than one distinctomp ordereddirective. #pragma omp parallel for Description Theomp parallel fordirective effectively combines theomp parallelandomp fordirectives. This ...
其中omp是OpenMP的一个关键字.在制导指令名 directive_name后可以附加参数parameters(子句clauses)等 选项. #pragmaompdirective-name[clause,...]newline 制导指令前缀。对 所有的OpenMP语 句都需要这样的前 缀。 OpenMP制导指 令。在制导指令前 缀和子句之间必须 有一个正确的 OpenMP制导指 令。 子句。在没有...
#pragma omp simd safelen(4) { for (i=0; i<(N-4); i++) { a[i] = a[i+4] + b[i] * c[i]; } }
Add recursive visitor for the new directive === Comment at: include/clang/Basic/OpenMPKinds.def:95 @@ -91,3 +94,3 @@ OPENMP_DIRECTIVE(flush) OPENMP_DIRECTIVE(ordered) OPENMP_DIRECTIVE(atomic) --- Add definition of the target data directive...