259 lines
7.4 KiB
C
259 lines
7.4 KiB
C
// RUN: %libomp-compile-and-run
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// RUN: %libomp-cxx-compile-and-run
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// UNSUPPORTED: gcc
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// Tests OMP 5.0 task dependences "mutexinoutset" and 5.1 "inoutset",
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// emulates compiler codegen for new dep kinds
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// Mutually exclusive tasks get same input dependency info array
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//
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// Task tree created:
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// task0 - task1 (in)
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// \
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// task2 - task3 (inoutset)
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// /
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// task3 - task4 (in)
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// /
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// task6 <-->task7 (mutexinoutset)
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// \ /
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// task8 (in)
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//
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#include <stdio.h>
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#include <omp.h>
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#ifdef _WIN32
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#include <windows.h>
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#define mysleep(n) Sleep(n)
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#else
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#include <unistd.h>
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#define mysleep(n) usleep((n)*1000)
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#endif
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// to check the # of concurrent tasks (must be 1 for MTX, <3 for other kinds)
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static int volatile checker = 0;
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static int err = 0;
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#ifndef DELAY
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#define DELAY 100
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#endif
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// ---------------------------------------------------------------------------
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// internal data to emulate compiler codegen
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typedef struct DEP {
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size_t addr;
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size_t len;
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unsigned char flags;
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} dep;
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typedef struct task {
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void** shareds;
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void* entry;
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int part_id;
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void* destr_thunk;
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int priority;
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long long device_id;
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int f_priv;
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} task_t;
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#define TIED 1
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typedef int(*entry_t)(int, task_t*);
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typedef struct ID {
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int reserved_1;
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int flags;
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int reserved_2;
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int reserved_3;
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char *psource;
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} id;
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// thunk routine for tasks with MTX dependency
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int thunk_m(int gtid, task_t* ptask) {
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int th = omp_get_thread_num();
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#pragma omp atomic
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++checker;
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printf("task _%d, th %d\n", ptask->f_priv, th);
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if (checker != 1) { // no more than 1 task at a time
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err++;
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printf("Error1, checker %d != 1\n", checker);
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}
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mysleep(DELAY);
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if (checker != 1) { // no more than 1 task at a time
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err++;
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printf("Error2, checker %d != 1\n", checker);
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}
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#pragma omp atomic
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--checker;
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return 0;
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}
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// thunk routine for tasks with inoutset dependency
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int thunk_s(int gtid, task_t* ptask) {
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int th = omp_get_thread_num();
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#pragma omp atomic
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++checker;
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printf("task _%d, th %d\n", ptask->f_priv, th);
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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mysleep(DELAY);
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error2, checker %d > 2\n", checker);
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}
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#pragma omp atomic
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--checker;
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return 0;
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}
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#ifdef __cplusplus
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extern "C" {
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#endif
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int __kmpc_global_thread_num(id*);
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extern task_t* __kmpc_omp_task_alloc(id *loc, int gtid, int flags,
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size_t sz, size_t shar, entry_t rtn);
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int
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__kmpc_omp_task_with_deps(id *loc, int gtid, task_t *task, int nd, dep *dep_lst,
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int nd_noalias, dep *noalias_dep_lst);
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static id loc = {0, 2, 0, 0, ";file;func;0;0;;"};
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#ifdef __cplusplus
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} // extern "C"
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#endif
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// End of internal data
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// ---------------------------------------------------------------------------
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int main()
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{
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int i1,i2,i3;
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omp_set_num_threads(4);
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omp_set_dynamic(0);
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#pragma omp parallel
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{
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#pragma omp single nowait
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{
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dep sdep[2];
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task_t *ptr;
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int gtid = __kmpc_global_thread_num(&loc);
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int t = omp_get_thread_num();
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#pragma omp task depend(in: i1, i2)
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{ int th = omp_get_thread_num();
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printf("task 0_%d, th %d\n", t, th);
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#pragma omp atomic
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++checker;
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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mysleep(DELAY);
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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#pragma omp atomic
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--checker;
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}
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#pragma omp task depend(in: i1, i2)
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{ int th = omp_get_thread_num();
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printf("task 1_%d, th %d\n", t, th);
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#pragma omp atomic
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++checker;
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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mysleep(DELAY);
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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#pragma omp atomic
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--checker;
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}
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// compiler codegen start
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// task2
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ptr = __kmpc_omp_task_alloc(&loc, gtid, TIED, sizeof(task_t), 0, thunk_s);
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sdep[0].addr = (size_t)&i1;
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sdep[0].len = 0; // not used
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sdep[0].flags = 1; // IN
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sdep[1].addr = (size_t)&i2;
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sdep[1].len = 0; // not used
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sdep[1].flags = 8; // INOUTSET
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ptr->f_priv = t + 10; // init single first-private variable
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__kmpc_omp_task_with_deps(&loc, gtid, ptr, 2, sdep, 0, 0);
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// task3
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ptr = __kmpc_omp_task_alloc(&loc, gtid, TIED, sizeof(task_t), 0, thunk_s);
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ptr->f_priv = t + 20; // init single first-private variable
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__kmpc_omp_task_with_deps(&loc, gtid, ptr, 2, sdep, 0, 0);
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// compiler codegen end
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t = omp_get_thread_num();
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#pragma omp task depend(in: i1, i2)
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{ int th = omp_get_thread_num();
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printf("task 4_%d, th %d\n", t, th);
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#pragma omp atomic
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++checker;
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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mysleep(DELAY);
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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#pragma omp atomic
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--checker;
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}
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#pragma omp task depend(in: i1, i2)
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{ int th = omp_get_thread_num();
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printf("task 5_%d, th %d\n", t, th);
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#pragma omp atomic
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++checker;
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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mysleep(DELAY);
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if (checker > 2) { // no more than 2 tasks concurrently
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err++;
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printf("Error1, checker %d > 2\n", checker);
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}
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#pragma omp atomic
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--checker;
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}
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// compiler codegen start
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// task6
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ptr = __kmpc_omp_task_alloc(&loc, gtid, TIED, sizeof(task_t), 0, thunk_m);
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sdep[0].addr = (size_t)&i1;
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sdep[0].len = 0; // not used
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sdep[0].flags = 4; // MUTEXINOUTSET
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sdep[1].addr = (size_t)&i3;
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sdep[1].len = 0; // not used
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sdep[1].flags = 4; // MUTEXINOUTSET
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ptr->f_priv = t + 30; // init single first-private variable
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__kmpc_omp_task_with_deps(&loc, gtid, ptr, 2, sdep, 0, 0);
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// task7
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ptr = __kmpc_omp_task_alloc(&loc, gtid, TIED, sizeof(task_t), 0, thunk_m);
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ptr->f_priv = t + 40; // init single first-private variable
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__kmpc_omp_task_with_deps(&loc, gtid, ptr, 2, sdep, 0, 0);
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// compiler codegen end
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#pragma omp task depend(in: i3)
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{ int th = omp_get_thread_num();
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printf("task 8_%d, th %d\n", t, th);
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#pragma omp atomic
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++checker;
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if (checker != 1) { // last task should run exclusively
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err++;
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printf("Error1, checker %d != 1\n", checker); }
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mysleep(DELAY);
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if (checker != 1) { // last task should run exclusively
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err++;
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printf("Error1, checker %d != 1\n", checker); }
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#pragma omp atomic
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--checker;
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}
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} // single
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} // parallel
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if (err == 0) {
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printf("passed\n");
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return 0;
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} else {
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printf("failed\n");
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return 1;
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}
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}
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