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// SPDX-License-Identifier: BSD-2-Clause
/* Copyright (C) 2014 - 2021 Intel Corporation. */
#include <memkind/internal/memkind_arena.h>
#include <algorithm>
#include <gtest/gtest.h>
#include <vector>
#ifdef _OPENMP
#include <omp.h>
#endif
#include <pthread.h>
class GetArenaTest: public ::testing::Test
{
protected:
void SetUp()
{}
void TearDown()
{}
};
bool uint_comp(unsigned int a, unsigned int b)
{
return (a < b);
}
TEST_F(GetArenaTest, test_TC_MEMKIND_ThreadHash)
{
#ifdef _OPENMP
int num_threads = omp_get_max_threads();
std::vector<unsigned int> arena_idx(num_threads);
unsigned int thread_idx, idx;
int err = 0;
size_t size = 0;
int i;
unsigned max_collisions, collisions;
const unsigned collisions_limit = 7;
// Initialize kind
memkind_malloc(MEMKIND_HBW, 0);
#pragma omp parallel shared(arena_idx) private(thread_idx)
{
thread_idx = omp_get_thread_num();
err = memkind_thread_get_arena(MEMKIND_HBW, &(arena_idx[thread_idx]),
size);
}
ASSERT_TRUE(err == 0);
std::sort(arena_idx.begin(), arena_idx.end(), uint_comp);
idx = arena_idx[0];
collisions = 0;
max_collisions = 0;
for (i = 1; i < num_threads; ++i) {
if (arena_idx[i] == idx) {
collisions++;
} else {
if (collisions > max_collisions) {
max_collisions = collisions;
}
idx = arena_idx[i];
collisions = 0;
}
}
EXPECT_LE(max_collisions, collisions_limit);
RecordProperty("max_collisions", max_collisions);
#else
std::cout << "[ SKIPPED ] Feature OPENMP not supported" << std::endl;
#endif
}
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