message: Skip the hwloc tests when not populated
diff: @@ -140,6 +140,9 @@ TEST_F(CudaExecutor, ClosestCpusIsPopulated)
  {
  cuda = gko::CudaExecutor::create(0, gko::OmpExecutor::create());
  auto close_cpus0 = cuda->get_closest_pus();
  + if (close_cpus0.size() == 0) {
  + GTEST_SKIP();
  + }
  ASSERT_NE(close_cpus0[0], -1);
  }
  @@ -149,9 +152,12 @@ TEST_F(CudaExecutor, KnowsItsNuma)
  {
  cuda = gko::CudaExecutor::create(0, gko::OmpExecutor::create());
  auto numa0 = cuda->get_closest_numa();
  - auto close_cpu0 = cuda->get_closest_pus()[0];
  + auto close_cpus0 = cuda->get_closest_pus();
  + if (close_cpus0.size() == 0) {
  + GTEST_SKIP();
  + }
  - auto numa_sys0 = numa_node_of_cpu(get_cpu_os_id(close_cpu0));
  + auto numa_sys0 = numa_node_of_cpu(get_cpu_os_id(close_cpus0[0]));
  ASSERT_TRUE(numa0 == numa_sys0);
  }
  