cancel_parallel.c

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// RUN: %libomp-compile && env OMP_CANCELLATION=true %libomp-run | %sort-threads | FileCheck %s
// REQUIRES: ompt
// Current GOMP interface implementation does not support cancellation
// XFAIL: gcc
 
#include "callback.h"
#include "omp.h"
 
int main() {
  #pragma omp parallel num_threads(2)
  {
    if (omp_get_thread_num() == 0) {
      print_fuzzy_address_blocks(get_ompt_label_address(1));
      #pragma omp cancel parallel
      define_ompt_label(1);
      // We cannot print at this location because the parallel region is cancelled!
    } else {
      delay(100);
      print_fuzzy_address_blocks(get_ompt_label_address(2));
      #pragma omp cancellation point parallel
      define_ompt_label(2);
      // We cannot print at this location because the parallel region is cancelled!
    }
  }
 
  // Check if libomp supports the callbacks for this test.
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_implicit_task'
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_cancel'
 
  // CHECK: {{^}}0: NULL_POINTER=[[NULL:.*$]]
  // CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_initial_task_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, actual_parallelism=1, index=1, flags=1 
  // CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_cancel: task_data=[[TASK_ID:[0-9]+]], flags=ompt_cancel_parallel|ompt_cancel_activated=17, codeptr_ra=[[RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}
  // CHECK-DAG: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
 
  // CHECK: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin
  // CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_cancel: task_data=[[TASK_ID:[0-9]+]], flags=ompt_cancel_parallel|ompt_cancel_detected=33, codeptr_ra=[[OTHER_RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}
  // CHECK-DAG: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[OTHER_RETURN_ADDRESS]]
 
  return 0;
}