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ucp_latency.c
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ucp_latency.c
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/**
* Copyright (C) Mellanox Technologies Ltd. 2001-2016. ALL RIGHTS RESERVED.
*
* See file LICENSE for terms.
*/
#define HAVE_CONFIG_H /* Force using config.h, so test would fail if header
actually tries to use it */
/*
* UCP hello world client / server example utility
* -----------------------------------------------
*
* Server side:
*
* ./ucp_hello_world
*
* Client side:
*
* ./ucp_hello_world -n <server host name>
*
* Notes:
*
* - Client acquires Server UCX address via TCP socket
*
*
* Author:
*
* Ilya Nelkenbaum <ilya@nelkenbaum.com>
* Sergey Shalnov <sergeysh@mellanox.com> 7-June-2016
*/
#include <ucp/api/ucp.h>
#include <ucp/api/ucp_def.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/epoll.h>
#include <netinet/in.h>
#include <assert.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h> //getopt
#include <ctype.h> //isprint
#include <pthread.h> //pthread_self
#include <errno.h> //errno
#include <time.h>
#define GET_TS() ({ \
struct timespec ts; \
double ret = 0; \
clock_gettime(CLOCK_MONOTONIC, &ts); \
ret = ts.tv_sec + 1E-9*ts.tv_nsec; \
ret; \
})
struct msg {
uint64_t data_len;
uint8_t data[0];
};
struct ucx_context {
int completed;
};
enum ucp_test_mode_t {
TEST_MODE_PROBE,
TEST_MODE_WAIT,
TEST_MODE_EVENTFD
} ucp_test_mode = TEST_MODE_PROBE;
static uint16_t server_port = 13337;
static long test_string_length = 16;
static const ucp_tag_t tag = 0x1337a880u;
static const ucp_tag_t tag_mask = -1;
static ucp_address_t *local_addr;
static ucp_address_t *peer_addr;
static int same_buf = 1;
static size_t local_addr_len;
static size_t peer_addr_len;
static int parse_cmd(int argc, char * const argv[], char **server_name);
static int run_server();
static int run_client(const char *server);
static void generate_random_string(char *str, int size);
static void request_init(void *request)
{
struct ucx_context *ctx = (struct ucx_context *) request;
ctx->completed = 0;
}
static void send_handle(void *request, ucs_status_t status)
{
struct ucx_context *context = (struct ucx_context *) request;
context->completed = 1;
// printf("[0x%x] send handler called with status %d\n",
// (unsigned int)pthread_self(), status);
}
static void recv_handle(void *request, ucs_status_t status,
ucp_tag_recv_info_t *info)
{
struct ucx_context *context = (struct ucx_context *) request;
context->completed = 1;
// printf("[0x%x] receive handler called with status %d (length %zu)\n",
// (unsigned int)pthread_self(), status, info->length);
}
static void wait(ucp_worker_h ucp_worker, struct ucx_context *context)
{
while (context->completed == 0) {
ucp_worker_progress(ucp_worker);
}
}
static ucs_status_t test_poll_wait(ucp_worker_h ucp_worker)
{
int ret = -1;
ucs_status_t status;
int epoll_fd_local = 0, epoll_fd = 0;
struct epoll_event ev;
ev.data.u64 = 0;
status = ucp_worker_get_efd(ucp_worker, &epoll_fd);
if (status != UCS_OK) {
goto err;
}
/* It is recommended to copy original fd */
epoll_fd_local = epoll_create(1);
ev.data.fd = epoll_fd;
ev.events = EPOLLIN;
if (epoll_ctl(epoll_fd_local, EPOLL_CTL_ADD, epoll_fd, &ev) < 0) {
fprintf(stderr, "Couldn't add original socket %d to the "
"new epoll: %m\n", epoll_fd);
goto err_fd;
}
/* Need to prepare ucp_worker before epoll_wait */
status = ucp_worker_arm(ucp_worker);
if (status == UCS_ERR_BUSY) { /* some events are arrived already */
ret = UCS_OK;
goto err_fd;
}
if (status != UCS_OK) {
goto err_fd;
}
do {
ret = epoll_wait(epoll_fd_local, &ev, 1, -1);
} while ((ret == -1) && (errno == EINTR));
ret = UCS_OK;
err_fd:
close(epoll_fd_local);
err:
return ret;
}
int recv_msg(ucp_worker_h ucp_worker, ucp_ep_h server_ep)
{
ucp_tag_recv_info_t info_tag;
ucp_tag_message_h msg_tag;
ucs_status_t status;
struct ucx_context *request;
static char *msg = NULL;
static int cur_len = 0;
/* Receive test string from server */
do {
int i;
/* Following blocked methods used to polling internal file descriptor
* to make CPU idle and don't spin loop
*/
if (ucp_test_mode == TEST_MODE_WAIT) {
/* Polling incoming events*/
status = ucp_worker_wait(ucp_worker);
if (status != UCS_OK) {
abort();
}
} else if (ucp_test_mode == TEST_MODE_EVENTFD) {
status = test_poll_wait(ucp_worker);
if (status != UCS_OK) {
abort();
}
}
/* Progressing before probe to update the state */
ucp_worker_progress(ucp_worker);
/* Probing incoming events in non-block mode */
msg_tag = ucp_tag_probe_nb(ucp_worker, tag, tag_mask, 1, &info_tag);
} while (msg_tag == NULL);
if( same_buf ) {
if( cur_len < info_tag.length ){
if( NULL == msg ) {
msg = malloc(info_tag.length);
} else {
free(msg);
msg = malloc(info_tag.length);
}
cur_len = info_tag.length;
}
// usleep(1*(info_tag.length/1000 + 1));
} else {
msg = malloc(info_tag.length);
}
if (!msg) {
fprintf(stderr, "unable to allocate memory\n");
abort();
}
request = ucp_tag_msg_recv_nb(ucp_worker, msg, info_tag.length,
ucp_dt_make_contig(1), msg_tag,
recv_handle);
if (UCS_PTR_IS_ERR(request)) {
fprintf(stderr, "unable to receive UCX data message (%u)\n",
UCS_PTR_STATUS(request));
free(msg);
abort();
} else {
wait(ucp_worker, request);
request->completed = 0;
ucp_request_release(request);
}
if( !same_buf ) {
free(msg);
}
return info_tag.length;
}
int send_msg(ucp_worker_h ucp_worker, ucp_ep_h server_ep, int msg_len)
{
ucp_tag_recv_info_t info_tag;
ucp_tag_message_h msg_tag;
ucs_status_t status;
struct ucx_context *request;
static char *msg = NULL;
static int cur_len = 0;
int len;
if( same_buf ) {
if( cur_len < msg_len ) {
if( NULL == msg ) {
msg = malloc(msg_len);
} else {
free(msg);
msg = malloc(msg_len);
}
cur_len = msg_len;
}
if( msg_len > 262144 ){
usleep(1*(msg_len/5000 + 1));
}
} else {
msg = malloc(msg_len);
}
request = ucp_tag_send_nb(server_ep, msg, msg_len,
ucp_dt_make_contig(1), tag,
send_handle);
if (UCS_PTR_IS_ERR(request)) {
fprintf(stderr, "unable to send UCX address message\n");
free(msg);
abort();
} else if (UCS_PTR_STATUS(request) != UCS_OK) {
wait(ucp_worker, request);
request->completed = 0; /* Reset request state before recycling it */
ucp_request_release(request);
}
if( !same_buf ) {
free(msg);
}
return 0;
}
void pong_ping(ucp_worker_h ucp_worker, ucp_ep_h ep)
{
int len;
len = recv_msg(ucp_worker, ep);
send_msg(ucp_worker, ep, len);
}
void ping_pong(ucp_worker_h ucp_worker, ucp_ep_h ep, int len)
{
send_msg(ucp_worker, ep, len);
len = recv_msg(ucp_worker, ep);
}
static int run_ucx_client(ucp_worker_h ucp_worker)
{
ucp_tag_recv_info_t info_tag;
ucp_tag_message_h msg_tag;
ucs_status_t status;
ucp_ep_h server_ep;
ucp_ep_params_t ep_params;
struct msg *msg = 0;
struct ucx_context *request = 0;
size_t msg_len = 0;
int ret = -1;
int i;
/* Send client UCX address to server */
ep_params.field_mask = UCP_EP_PARAM_FIELD_REMOTE_ADDRESS;
ep_params.address = peer_addr;
status = ucp_ep_create(ucp_worker, &ep_params, &server_ep);
if (status != UCS_OK) {
goto err;
}
msg_len = sizeof(*msg) + local_addr_len;
msg = calloc(1, msg_len);
if (!msg) {
goto err_ep;
}
msg->data_len = local_addr_len;
memcpy(msg->data, local_addr, local_addr_len);
request = ucp_tag_send_nb(server_ep, msg, msg_len,
ucp_dt_make_contig(1), tag,
send_handle);
if (UCS_PTR_IS_ERR(request)) {
fprintf(stderr, "unable to send UCX address message\n");
free(msg);
goto err_ep;
} else if (UCS_PTR_STATUS(request) != UCS_OK) {
fprintf(stderr, "UCX address message was scheduled for send\n");
wait(ucp_worker, request);
request->completed = 0; /* Reset request state before recycling it */
ucp_request_release(request);
}
free (msg);
// for(i=1; i <= 4194304; i *= 2){
// for(i=262144; i < 2*262144; i *= 2){
i = 262144;
{
int rep, j;
rep = 1000;
/*
for(j=0; j < rep/10; j++){
pong_ping(ucp_worker, server_ep);
}
*/
for(j=0; j < rep; j++){
if( j % 10 ){
printf("%d: send\n",j);
}
pong_ping(ucp_worker, server_ep);
}
}
ret = 0;
err_ep:
ucp_ep_destroy(server_ep);
err:
return ret;
}
static int run_ucx_server(ucp_worker_h ucp_worker)
{
ucp_tag_recv_info_t info_tag;
ucp_tag_message_h msg_tag;
ucs_status_t status;
ucp_ep_h client_ep;
ucp_ep_params_t ep_params;
struct msg *msg = 0;
struct ucx_context *request = 0;
size_t msg_len = 0;
int ret = -1;
int i;
/* Receive client UCX address */
do {
/* Following blocked methods used to polling internal file descriptor
* to make CPU idle and don't spin loop
*/
if (ucp_test_mode == TEST_MODE_WAIT) {
status = ucp_worker_wait(ucp_worker);
if (status != UCS_OK) {
goto err;
}
} else if (ucp_test_mode == TEST_MODE_EVENTFD) {
status = test_poll_wait(ucp_worker);
if (status != UCS_OK) {
goto err;
}
}
/* Progressing before probe to update the state */
ucp_worker_progress(ucp_worker);
/* Probing incoming events in non-block mode */
msg_tag = ucp_tag_probe_nb(ucp_worker, tag, tag_mask, 1, &info_tag);
} while (msg_tag == NULL);
msg = malloc(info_tag.length);
if (!msg) {
fprintf(stderr, "unable to allocate memory\n");
goto err;
}
request = ucp_tag_msg_recv_nb(ucp_worker, msg, info_tag.length,
ucp_dt_make_contig(1), msg_tag, recv_handle);
if (UCS_PTR_IS_ERR(request)) {
fprintf(stderr, "unable to receive UCX address message (%s)\n",
ucs_status_string(UCS_PTR_STATUS(request)));
free(msg);
goto err;
} else {
wait(ucp_worker, request);
request->completed = 0;
ucp_request_release(request);
printf("UCX address message was received\n");
}
peer_addr = malloc(msg->data_len);
if (!peer_addr) {
fprintf(stderr, "unable to allocate memory for peer address\n");
free(msg);
goto err;
}
peer_addr_len = msg->data_len;
memcpy(peer_addr, msg->data, peer_addr_len);
free(msg);
/* Send test string to client */
ep_params.field_mask = UCP_EP_PARAM_FIELD_REMOTE_ADDRESS;
ep_params.address = peer_addr;
status = ucp_ep_create(ucp_worker, &ep_params, &client_ep);
if (status != UCS_OK) {
goto err;
}
// for(i=1; i <= 4194304; i *= 2){
// for(i=262144; i < 2*262144; i *= 2){
i = 262144;
{
int rep, j;
rep = 1000;
double start = GET_TS();
for(j=0; j < rep; j++){
ping_pong(ucp_worker, client_ep, i);
}
double time = GET_TS() - start;
printf("%d\t%lf\n",i, time / rep / 2 * 1000000);
}
err_ep:
ucp_ep_destroy(client_ep);
err:
return ret;
}
static int run_test(const char *server, ucp_worker_h ucp_worker)
{
if (server != NULL) {
return run_ucx_client(ucp_worker);
} else {
return run_ucx_server(ucp_worker);
}
}
static void barrier(int oob_sock)
{
int dummy = 0;
send(oob_sock, &dummy, sizeof(dummy), 0);
recv(oob_sock, &dummy, sizeof(dummy), 0);
}
static void generate_random_string(char *str, int size)
{
int i;
srand(time(NULL)); // randomize seed
for (i = 0; i < (size-1); ++i) {
str[i] = 'A' + (rand() % 26);
}
str[i] = 0;
}
int main(int argc, char **argv)
{
/* UCP temporary vars */
ucp_params_t ucp_params;
ucp_worker_params_t worker_params;
ucp_config_t *config;
ucs_status_t status;
/* UCP handler objects */
ucp_context_h ucp_context;
ucp_worker_h ucp_worker;
/* OOB connection vars */
uint64_t addr_len = 0;
char *server = NULL;
int oob_sock = -1;
int ret = -1;
/* Parse the command line */
if (parse_cmd(argc, argv, &server) != UCS_OK) {
goto err;
}
/* UCP initialization */
status = ucp_config_read(NULL, NULL, &config);
if (status != UCS_OK) {
goto err;
}
ucp_params.features = UCP_FEATURE_TAG;
if (ucp_test_mode == TEST_MODE_WAIT || ucp_test_mode == TEST_MODE_EVENTFD) {
ucp_params.features |= UCP_FEATURE_WAKEUP;
}
ucp_params.request_size = sizeof(struct ucx_context);
ucp_params.request_init = request_init;
ucp_params.request_cleanup = NULL;
status = ucp_init(&ucp_params, config, &ucp_context);
ucp_config_print(config, stdout, NULL, UCS_CONFIG_PRINT_CONFIG);
ucp_config_release(config);
if (status != UCS_OK) {
goto err;
}
worker_params.field_mask = UCP_WORKER_PARAM_FIELD_THREAD_MODE;
worker_params.thread_mode = UCS_THREAD_MODE_SINGLE;
status = ucp_worker_create(ucp_context, &worker_params, &ucp_worker);
if (status != UCS_OK) {
goto err_cleanup;
}
status = ucp_worker_get_address(ucp_worker, &local_addr, &local_addr_len);
if (status != UCS_OK) {
goto err_worker;
}
printf("[0x%x] local address length: %zu\n",
(unsigned int)pthread_self(), local_addr_len);
/* OOB connection establishment */
if (server) {
peer_addr_len = local_addr_len;
oob_sock = run_client(server);
if (oob_sock < 0) {
goto err_addr;
}
ret = recv(oob_sock, &addr_len, sizeof(addr_len), 0);
if (ret < 0) {
fprintf(stderr, "failed to receive address length\n");
goto err_addr;
}
peer_addr_len = addr_len;
peer_addr = malloc(peer_addr_len);
if (!peer_addr) {
fprintf(stderr, "unable to allocate memory\n");
goto err_addr;
}
ret = recv(oob_sock, peer_addr, peer_addr_len, 0);
if (ret < 0) {
fprintf(stderr, "failed to receive address\n");
goto err_peer_addr;
}
} else {
oob_sock = run_server();
if (oob_sock < 0) {
goto err_peer_addr;
}
addr_len = local_addr_len;
ret = send(oob_sock, &addr_len, sizeof(addr_len), 0);
if (ret < 0 || ret != sizeof(addr_len)) {
fprintf(stderr, "failed to send address length\n");
goto err_peer_addr;
}
ret = send(oob_sock, local_addr, local_addr_len, 0);
if (ret < 0 || ret != local_addr_len) {
fprintf(stderr, "failed to send address\n");
goto err_peer_addr;
}
}
ret = run_test(server, ucp_worker);
/* Make sure remote is disconnected before destroying local worker */
barrier(oob_sock);
close(oob_sock);
err_peer_addr:
free(peer_addr);
err_addr:
ucp_worker_release_address(ucp_worker, local_addr);
err_worker:
ucp_worker_destroy(ucp_worker);
err_cleanup:
ucp_cleanup(ucp_context);
err:
return ret;
}
int parse_cmd(int argc, char * const argv[], char **server_name)
{
int c = 0, index = 0;
opterr = 0;
while ((c = getopt(argc, argv, "wfbn:p:s:hd")) != -1) {
switch (c) {
case 'w':
ucp_test_mode = TEST_MODE_WAIT;
break;
case 'd':
same_buf = 0;
break;
case 'f':
ucp_test_mode = TEST_MODE_EVENTFD;
break;
case 'b':
ucp_test_mode = TEST_MODE_PROBE;
break;
case 'n':
*server_name = optarg;
break;
case 'p':
server_port = atoi(optarg);
if (server_port <= 0) {
fprintf(stderr, "Wrong server port number %d\n", server_port);
return UCS_ERR_UNSUPPORTED;
}
break;
case 's':
test_string_length = atol(optarg);
if (test_string_length <= 0) {
fprintf(stderr, "Wrong string size %ld\n", test_string_length);
return UCS_ERR_UNSUPPORTED;
}
break;
case '?':
if (optopt == 's') {
fprintf(stderr, "Option -%c requires an argument.\n", optopt);
} else if (isprint (optopt)) {
fprintf(stderr, "Unknown option `-%c'.\n", optopt);
} else {
fprintf(stderr, "Unknown option character `\\x%x'.\n", optopt);
}
case 'h':
default:
fprintf(stderr, "Usage: ucp_hello_world [parameters]\n");
fprintf(stderr, "UCP hello world client/server example utility\n");
fprintf(stderr, "\nParameters are:\n");
fprintf(stderr, " -w Select test mode \"wait\" to test "
"ucp_worker_wait function\n");
fprintf(stderr, " -f Select test mode \"event fd\" to test "
"ucp_worker_get_efd function with later poll\n");
fprintf(stderr, " -b Select test mode \"busy polling\" to test "
"ucp_tag_probe_nb and ucp_worker_progress (default)\n");
fprintf(stderr, " -n name Set node name or IP address "
"of the server (required for client and should be ignored "
"for server)\n");
fprintf(stderr, " -p port Set alternative server port (default:13337)\n");
fprintf(stderr, " -s size Set test string length (default:16)\n");
fprintf(stderr, "\n");
return UCS_ERR_UNSUPPORTED;
}
}
fprintf(stderr, "INFO: UCP_HELLO_WORLD mode = %d server = %s port = %d\n",
ucp_test_mode, *server_name, server_port);
for (index = optind; index < argc; index++) {
fprintf(stderr, "WARNING: Non-option argument %s\n", argv[index]);
}
return UCS_OK;
}
int run_server()
{
struct sockaddr_in inaddr;
int lsock = -1;
int dsock = -1;
int optval = 1;
int ret;
lsock = socket(AF_INET, SOCK_STREAM, 0);
if (lsock < 0) {
fprintf(stderr, "server socket() failed\n");
goto err;
}
optval = 1;
ret = setsockopt(lsock, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval));
if (ret < 0) {
fprintf(stderr, "server setsockopt() failed\n");
goto err_sock;
}
inaddr.sin_family = AF_INET;
inaddr.sin_port = htons(server_port);
inaddr.sin_addr.s_addr = INADDR_ANY;
memset(inaddr.sin_zero, 0, sizeof(inaddr.sin_zero));
ret = bind(lsock, (struct sockaddr*)&inaddr, sizeof(inaddr));
if (ret < 0) {
fprintf(stderr, "server bind() failed\n");
goto err_sock;
}
ret = listen(lsock, 0);
if (ret < 0) {
fprintf(stderr, "server listen() failed\n");
goto err_sock;
}
printf("Waiting for connection...\n");
/* Accept next connection */
dsock = accept(lsock, NULL, NULL);
if (dsock < 0) {
fprintf(stderr, "server accept() failed\n");
goto err_sock;
}
close(lsock);
return dsock;
err_sock:
close(lsock);
err:
return -1;
}
int run_client(const char *server)
{
struct sockaddr_in conn_addr;
struct hostent *he;
int connfd;
int ret;
connfd = socket(AF_INET, SOCK_STREAM, 0);
if (connfd < 0) {
fprintf(stderr, "socket() failed: %m\n");
return -1;
}
he = gethostbyname(server);
if (he == NULL || he->h_addr_list == NULL) {
fprintf(stderr, "host %s not found: %s\n", server, hstrerror(h_errno));
goto err_conn;
}
conn_addr.sin_family = he->h_addrtype;
conn_addr.sin_port = htons(server_port);
memcpy(&conn_addr.sin_addr, he->h_addr_list[0], he->h_length);
memset(conn_addr.sin_zero, 0, sizeof(conn_addr.sin_zero));
ret = connect(connfd, (struct sockaddr*)&conn_addr, sizeof(conn_addr));
if (ret < 0) {
fprintf(stderr, "run_client connect() failed: %m\n");
goto err_conn;
}
return connfd;
err_conn:
close(connfd);
return -1;
}