cancel_taskgroup.c

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// clang-format off
// RUN:  %libomp-compile && env OMP_CANCELLATION=true %libomp-run | %sort-threads | FileCheck %s
// REQUIRES: ompt
// UNSUPPORTED: clang-3, clang-4.0.0
// Current GOMP interface implementation does not support cancellation; icc 16 has a bug
// XFAIL: gcc, icc-16
// clang-format on
 
#include "callback.h"
#include <unistd.h>
#include <stdio.h>
 
int main() {
  int condition = 0;
#pragma omp parallel num_threads(2)
  {}
 
  print_frame(0);
#pragma omp parallel num_threads(2)
  {
#pragma omp master
    {
#pragma omp taskgroup
      {
#pragma omp task shared(condition)
        {
          printf("start execute task 1\n");
          OMPT_SIGNAL(condition);
          OMPT_WAIT(condition, 2);
#pragma omp cancellation point taskgroup
          printf("end execute task 1\n");
        }
#pragma omp task shared(condition)
        {
          printf("start execute task 2\n");
          OMPT_SIGNAL(condition);
          OMPT_WAIT(condition, 2);
#pragma omp cancellation point taskgroup
          printf("end execute task 2\n");
        }
#pragma omp task shared(condition)
        {
          printf("start execute task 3\n");
          OMPT_SIGNAL(condition);
          OMPT_WAIT(condition, 2);
#pragma omp cancellation point taskgroup
          printf("end execute task 3\n");
        }
#pragma omp task if (0) shared(condition)
        {
          printf("start execute task 4\n");
          OMPT_WAIT(condition, 1);
#pragma omp cancel taskgroup
          printf("end execute task 4\n");
        }
        OMPT_SIGNAL(condition);
      }
    }
#pragma omp barrier
  }
 
  // clang-format off
  // Check if libomp supports the callbacks for this test.
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_masked'
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_task_create'
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_task_schedule' 
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_cancel' 
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_thread_begin'
 
  // CHECK: {{^}}0: NULL_POINTER=[[NULL:.*$]]
  // CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_masked_begin:
  // CHECK-SAME: parallel_id=[[PARALLEL_ID:[0-f]+]],
  // CHECK-SAME: task_id=[[PARENT_TASK_ID:[0-f]+]],
  // CHECK-SAME: codeptr_ra={{(0x)?[0-f]*}}
 
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_task_create: parent_task_id=[[PARENT_TASK_ID]], parent_task_frame.exit={{(0x)?[0-f]*}}, parent_task_frame.reenter={{(0x)?[0-f]*}}, new_task_id=[[FIRST_TASK_ID:[0-f]+]], codeptr_ra={{(0x)?[0-f]*}}, task_type=ompt_task_explicit=4, has_dependences=no
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_task_create: parent_task_id=[[PARENT_TASK_ID]], parent_task_frame.exit={{(0x)?[0-f]*}}, parent_task_frame.reenter={{(0x)?[0-f]*}}, new_task_id=[[SECOND_TASK_ID:[0-f]+]], codeptr_ra={{(0x)?[0-f]*}}, task_type=ompt_task_explicit=4, has_dependences=no
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_task_create: parent_task_id=[[PARENT_TASK_ID]], parent_task_frame.exit={{(0x)?[0-f]*}}, parent_task_frame.reenter={{(0x)?[0-f]*}}, new_task_id=[[THIRD_TASK_ID:[0-f]+]], codeptr_ra={{(0x)?[0-f]*}}, task_type=ompt_task_explicit=4, has_dependences=no
 
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_task_create: parent_task_id=[[PARENT_TASK_ID]], parent_task_frame.exit={{(0x)?[0-f]*}}, parent_task_frame.reenter={{(0x)?[0-f]*}}, new_task_id=[[CANCEL_TASK_ID:[0-f]+]], codeptr_ra={{(0x)?[0-f]*}}, task_type=ompt_task_explicit|ompt_task_undeferred=134217732, has_dependences=no
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_task_schedule: first_task_id=[[PARENT_TASK_ID]], second_task_id=[[CANCEL_TASK_ID]], prior_task_status=ompt_task_switch=7
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_cancel: task_id=[[CANCEL_TASK_ID]], flags=ompt_cancel_taskgroup|ompt_cancel_activated=24, codeptr_ra={{(0x)?[0-f]*}}
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_task_schedule: first_task_id=[[CANCEL_TASK_ID]], second_task_id=[[PARENT_TASK_ID]], prior_task_status=ompt_task_cancel=3
 
  // CHECK-DAG: {{^}}{{[0-9]+}}: ompt_event_cancel: task_id={{[0-f]+}}, flags=ompt_cancel_taskgroup|ompt_cancel_discarded_task=72, codeptr_ra=[[NULL]]
  // CHECK-DAG: {{^}}{{[0-9]+}}: ompt_event_cancel: task_id={{[0-f]+}}, flags=ompt_cancel_taskgroup|ompt_cancel_discarded_task=72, codeptr_ra=[[NULL]]
  
  // CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_thread_begin: thread_type=ompt_thread_worker=2, thread_id=[[THREAD_ID]]
  // CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_cancel: task_id={{[0-f]+}}, flags=ompt_cancel_taskgroup|ompt_cancel_detected=40, codeptr_ra={{(0x)?[0-f]*}}
  // clang-format on
 
  return 0;
}