dynamic_not_enough_threads.c

Go to the documentation of this file.

// RUN: %libomp-compile && env OMP_THREAD_LIMIT=2 %libomp-run | FileCheck %s
// REQUIRES: ompt
#include "callback.h"
 
int main()
{
  omp_set_dynamic(1);
 
  #pragma omp parallel num_threads(4)
  {
    print_ids(0);
    print_ids(1);
  }
  print_fuzzy_address(1);
 
  // Check if libomp supports the callbacks for this test.
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_thread_begin'
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_thread_end'
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_parallel_begin'
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_parallel_end'
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_implicit_task'
 
  //team-size of 1-4 is expected
 
  // CHECK: 0: NULL_POINTER=[[NULL:.*$]]
 
  // make sure initial data pointers are null
  // CHECK-NOT: 0: parallel_data initially not null
  // CHECK-NOT: 0: task_data initially not null
  // CHECK-NOT: 0: thread_data initially not null
 
  // CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_parallel_begin: parent_task_id=[[PARENT_TASK_ID:[0-9]+]], parent_task_frame.exit=[[NULL]], parent_task_frame.reenter={{0x[0-f]+}}, parallel_id=[[PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=[[RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER:[0-9]+]]
 
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]], team_size={{[1-4]}}
  // CHECK: {{^}}[[MASTER_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
  // CHECK: {{^}}[[MASTER_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID:[0-9]+]], task_id=[[PARENT_TASK_ID]]
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
 
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
  // CHECK: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
 
  return 0;
}