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#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include <assert.h>
#include <time.h>
#include <stdint.h>
#include "timer.h"
#if NUMA
#include <numaif.h>
#include <numa.h>
void* mp_pages[1];
int mp_status[1];
int mp_nodes[1];
struct bitmask* bitmask_in;
int numa_node_in = -1;
int numa_node_cpu = -1;
#endif
#if NUMA_MEMCPY
struct bitmask* bitmask_cpu;
int numa_node_cpu_memcpy = -1;
int numa_node_local = -1;
int numa_node_in_is_local = 0;
#endif
#define DTYPE uint64_t
/*
* @brief creates a "test file" by filling a bufferwith values
*/
void create_test_file(DTYPE * input, uint64_t nr_elements, DTYPE * querys, uint64_t n_querys) {
srand(time(NULL));
input[0] = 1;
for (uint64_t i = 1; i < nr_elements; i++) {
input[i] = input[i - 1] + (rand() % 10) + 1;
}
for(uint64_t i = 0; i < n_querys; i++)
{
querys[i] = input[rand() % (nr_elements - 2)];
}
}
/**
* @brief compute output in the host
*/
uint64_t binarySearch(DTYPE * input, uint64_t input_size, DTYPE* querys, unsigned n_querys)
{
uint64_t found = -1;
uint64_t q, r, l, m;
#pragma omp parallel for private(q,r,l,m)
for(q = 0; q < n_querys; q++)
{
l = 0;
r = input_size;
while (l <= r)
{
m = l + (r - l) / 2;
// Check if x is present at mid
if (input[m] == querys[q])
{
found += m;
break;
}
// If x greater, ignore left half
if (input[m] < querys[q])
l = m + 1;
// If x is smaller, ignore right half
else
r = m - 1;
}
}
return found;
}
/**
* @brief Main of the Host Application.
*/
int main(int argc, char **argv) {
(void)argc;
Timer timer;
uint64_t input_size = atol(argv[1]);
uint64_t n_querys = atol(argv[2]);
#if NUMA
bitmask_in = numa_parse_nodestring(argv[3]);
numa_node_cpu = atoi(argv[4]);
#endif
#if NUMA_MEMCPY
bitmask_cpu = numa_parse_nodestring(argv[5]);
numa_node_cpu_memcpy = atoi(argv[6]);
#endif
printf("Vector size: %lu, num searches: %lu\n", input_size, n_querys);
#if NUMA
if (bitmask_in) {
numa_set_membind(bitmask_in);
numa_free_nodemask(bitmask_in);
}
DTYPE * input = numa_alloc((input_size) * sizeof(DTYPE));
DTYPE * querys = numa_alloc((n_querys) * sizeof(DTYPE));
#else
DTYPE * input = malloc((input_size) * sizeof(DTYPE));
DTYPE * querys = malloc((n_querys) * sizeof(DTYPE));
#endif
#if NUMA
#if NUMA_MEMCPY
if (bitmask_cpu) {
numa_set_membind(bitmask_cpu);
numa_free_nodemask(bitmask_cpu);
}
#else
struct bitmask *bitmask_all = numa_allocate_nodemask();
numa_bitmask_setall(bitmask_all);
numa_set_membind(bitmask_all);
numa_free_nodemask(bitmask_all);
#endif // NUMA_MEMCPY
#endif
DTYPE result_host = -1;
// Create an input file with arbitrary data.
create_test_file(input, input_size, querys, n_querys);
#if NUMA
mp_pages[0] = input;
if (move_pages(0, 1, mp_pages, NULL, mp_status, 0) == -1) {
perror("move_pages(A)");
}
else if (mp_status[0] < 0) {
printf("move_pages error: %d", mp_status[0]);
}
else {
numa_node_in = mp_status[0];
}
if (numa_node_cpu != -1) {
if (numa_run_on_node(numa_node_cpu) == -1) {
perror("numa_run_on_node");
numa_node_cpu = -1;
}
}
#endif
#if NUMA_MEMCPY
numa_node_in_is_local = ((numa_node_cpu == numa_node_in) || (numa_node_cpu + 8 == numa_node_in)) * 1;
#endif
#if NUMA_MEMCPY
DTYPE *input_local = input;
DTYPE *querys_local = querys;
start(&timer, 1, 0);
if (!numa_node_in_is_local) {
input_local = numa_alloc((input_size) * sizeof(DTYPE));
querys_local = numa_alloc((n_querys) * sizeof(DTYPE));
}
stop(&timer, 1);
if (!numa_node_in_is_local) {
if (numa_node_cpu_memcpy != -1) {
if (numa_run_on_node(numa_node_cpu_memcpy) == -1) {
perror("numa_run_on_node");
numa_node_cpu_memcpy = -1;
}
}
}
start(&timer, 2, 0);
if (!numa_node_in_is_local) {
memcpy(input_local, input, input_size * sizeof(DTYPE));
memcpy(querys_local, querys, n_querys * sizeof(DTYPE));
} else {
input_local = input;
querys_local = querys;
}
stop(&timer, 2);
if (numa_node_cpu != -1) {
if (numa_run_on_node(numa_node_cpu) == -1) {
perror("numa_run_on_node");
numa_node_cpu = -1;
}
}
mp_pages[0] = input_local;
if (move_pages(0, 1, mp_pages, NULL, mp_status, 0) == -1) {
perror("move_pages(input_local)");
}
else if (mp_status[0] < 0) {
printf("move_pages error: %d", mp_status[0]);
}
else {
numa_node_local = mp_status[0];
}
#endif
start(&timer, 0, 0);
#if NUMA_MEMCPY
result_host = binarySearch(input_local, input_size - 1, querys_local, n_querys);
#else
result_host = binarySearch(input, input_size - 1, querys, n_querys);
#endif
stop(&timer, 0);
#if NUMA_MEMCPY
start(&timer, 3, 0);
if (!numa_node_in_is_local) {
numa_free(input_local, input_size * sizeof(DTYPE));
numa_free(querys_local, n_querys * sizeof(DTYPE));
}
stop(&timer, 3);
#endif
unsigned int nr_threads = 0;
#pragma omp parallel
#pragma omp atomic
nr_threads++;
int status = (result_host);
if (status) {
#if NUMA_MEMCPY
printf("[::] BS-CPU-MEMCPY | n_threads=%d e_type=%s n_elements=%lu"
" numa_node_in=%d numa_node_local=%d numa_node_cpu=%d numa_node_cpu_memcpy=%d numa_distance_in_cpu=%d"
" | throughput_MBps=%f throughput_MOpps=%f"
" latency_kernel_us=%f latency_alloc_us=%f latency_memcpy_us=%f latency_free_us=%f latency_total_us=%f\n",
nr_threads, "uint64_t", input_size,
numa_node_in, numa_node_local, numa_node_cpu, numa_node_cpu_memcpy, numa_distance(numa_node_in, numa_node_cpu),
n_querys * sizeof(DTYPE) / timer.time[0], n_querys / timer.time[0],
timer.time[0], timer.time[1], timer.time[2], timer.time[3],
timer.time[0] + timer.time[1] + timer.time[2] + timer.time[3]);
#else
printf("[::] BS-CPU | n_threads=%d e_type=%s n_elements=%lu"
#if NUMA
" numa_node_in=%d numa_node_cpu=%d numa_distance_in_cpu=%d"
#endif
" | throughput_MBps=%f",
nr_threads, "uint64_t", input_size,
#if NUMA
numa_node_in, numa_node_cpu, numa_distance(numa_node_in, numa_node_cpu),
#endif
n_querys * sizeof(DTYPE) / timer.time[0]);
printf(" throughput_MOpps=%f latency_us=%f\n",
n_querys / timer.time[0], timer.time[0]);
#endif
} else {
printf("[ERROR]\n");
}
#if NUMA
numa_free(input, input_size * sizeof(DTYPE));
numa_free(querys, n_querys * sizeof(DTYPE));
#else
free(input);
free(querys);
#endif
return status ? 0 : 1;
}
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