File: omp_device_managed_memory_alloc.c

package info (click to toggle)
swiftlang 6.1.3-4
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,644 kB
  • sloc: cpp: 9,901,738; ansic: 2,201,433; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (28 lines) | stat: -rw-r--r-- 672 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
// RUN: %libomptarget-compile-run-and-check-generic
// RUN: %libomptarget-compileopt-run-and-check-generic

#include <omp.h>
#include <stdio.h>

int main() {
  const int N = 64;

  // Allocates device managed memory that is shared between the host and device.
  int *shared_ptr =
      omp_alloc(N * sizeof(int), llvm_omp_target_shared_mem_alloc);

#pragma omp target teams distribute parallel for is_device_ptr(shared_ptr)
  for (int i = 0; i < N; ++i) {
    shared_ptr[i] = 1;
  }

  int sum = 0;
  for (int i = 0; i < N; ++i)
    sum += shared_ptr[i];

  // CHECK: PASS
  if (sum == N)
    printf("PASS\n");

  omp_free(shared_ptr, llvm_omp_target_shared_mem_alloc);
}