Roland,
* On Oct,11 Sayantan Sur<[EMAIL PROTECTED]> wrote :
> I will test out the limit event generation next.
I made some simple modifications to srq_pingpong.c to see if I am able
to generate the IBV_EVENT_SRQ_LIMIT_REACHED event. I have attached my
changes as a patch and the full file (for easy execution).
I noticed that the test re-posts buffers only when the outstanding recv
count is <= 1. I set a SRQ limit as max_recv - 5. So, I should get the
event when 5 WQEs are consumed from the SRQ, right?
As of now, I am not able to see the event happening. I'd be glad if you
could see if this issue can be resolved.
Thanks for your prompt help.
Sayantan.
--
http://www.cse.ohio-state.edu/~surs
Index: srq_pingpong.c
===================================================================
--- srq_pingpong.c (revision 3676)
+++ srq_pingpong.c (working copy)
@@ -36,6 +36,8 @@
# include <config.h>
#endif /* HAVE_CONFIG_H */
+#define _GNU_SOURCE
+
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@@ -62,6 +64,8 @@
static int page_size;
+static pthread_t limit_thread;
+
struct pingpong_context {
struct ibv_context *context;
struct ibv_comp_channel *channel;
@@ -82,6 +86,25 @@
int psn;
};
+
+static void asyncwatch(struct ibv_context *context)
+{
+ struct ibv_async_event event;
+
+ while (1) {
+
+ if (ibv_get_async_event(context, &event)) {
+ fprintf(stderr,"Error getting event!\n");
+ }
+
+ fprintf(stderr, " event_type %d, port %d\n", event.event_type,
+ event.element.port_num);
+ fflush(stderr);
+
+ ibv_ack_async_event(&event);
+ }
+}
+
static uint16_t pp_get_local_lid(struct pingpong_context *ctx, int port)
{
struct ibv_port_attr attr;
@@ -382,7 +405,11 @@
return NULL;
}
+ pthread_create(&limit_thread, NULL, (void *) asyncwatch, (void
*)ctx->context);
+
{
+ struct ibv_srq_attr srq_attr;
+
struct ibv_srq_init_attr attr = {
.attr = {
.max_wr = rx_depth,
@@ -395,6 +422,15 @@
fprintf(stderr, "Couldn't create SRQ\n");
return NULL;
}
+
+ srq_attr.max_wr = rx_depth;
+ srq_attr.max_sge = 1;
+ srq_attr.srq_limit = rx_depth-5;
+
+ if(ibv_modify_srq(ctx->srq, &srq_attr, IBV_SRQ_LIMIT)) {
+ fprintf(stderr,"Error modifying SRQ\n");
+ exit(-1);
+ }
}
for (i = 0; i < num_qp; ++i) {
@@ -434,6 +470,7 @@
}
}
+
return ctx;
}
@@ -742,6 +779,8 @@
}
}
+ fprintf(stderr,"routs %d\n", routs);
+
if (scnt < iters) {
j = find_qp(wc[i].qp_num, ctx,
num_qp);
if (j < 0) {
@@ -784,5 +823,7 @@
iters, usec / 1000000., usec / iters);
}
+ sleep(3);
+
return 0;
}
/*
* Copyright (c) 2005 Topspin Communications. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* $Id: srq_pingpong.c 3551 2005-09-26 21:07:33Z roland $
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netdb.h>
#include <malloc.h>
#include <getopt.h>
#include <arpa/inet.h>
#include <time.h>
#include <sysfs/libsysfs.h>
#include <infiniband/verbs.h>
enum {
PINGPONG_RECV_WRID = 1,
PINGPONG_SEND_WRID = 2,
MAX_QP = 256,
};
static int page_size;
static pthread_t limit_thread;
struct pingpong_context {
struct ibv_context *context;
struct ibv_comp_channel *channel;
struct ibv_pd *pd;
struct ibv_mr *mr;
struct ibv_cq *cq;
struct ibv_srq *srq;
struct ibv_qp *qp[MAX_QP];
void *buf;
int size;
int num_qp;
int rx_depth;
};
struct pingpong_dest {
int lid;
int qpn;
int psn;
};
static void asyncwatch(struct ibv_context *context)
{
struct ibv_async_event event;
while (1) {
if (ibv_get_async_event(context, &event)) {
fprintf(stderr,"Error getting event!\n");
}
fprintf(stderr, " event_type %d, port %d\n", event.event_type,
event.element.port_num);
fflush(stderr);
ibv_ack_async_event(&event);
}
}
static uint16_t pp_get_local_lid(struct pingpong_context *ctx, int port)
{
struct ibv_port_attr attr;
if (ibv_query_port(ctx->context, port, &attr))
return 0;
return attr.lid;
}
static int pp_connect_ctx(struct pingpong_context *ctx, int port,
const struct pingpong_dest *my_dest,
const struct pingpong_dest *dest)
{
int i;
for (i = 0; i < ctx->num_qp; ++i) {
struct ibv_qp_attr attr = {
.qp_state = IBV_QPS_RTR,
.path_mtu = IBV_MTU_1024,
.dest_qp_num = dest[i].qpn,
.rq_psn = dest[i].psn,
.max_dest_rd_atomic = 1,
.min_rnr_timer = 12,
.ah_attr = {
.is_global = 0,
.dlid = dest[i].lid,
.sl = 0,
.src_path_bits = 0,
.port_num = port
}
};
if (ibv_modify_qp(ctx->qp[i], &attr,
IBV_QP_STATE |
IBV_QP_AV |
IBV_QP_PATH_MTU |
IBV_QP_DEST_QPN |
IBV_QP_RQ_PSN |
IBV_QP_MAX_DEST_RD_ATOMIC |
IBV_QP_MIN_RNR_TIMER)) {
fprintf(stderr, "Failed to modify QP[%d] to RTR\n", i);
return 1;
}
attr.qp_state = IBV_QPS_RTS;
attr.timeout = 14;
attr.retry_cnt = 7;
attr.rnr_retry = 7;
attr.sq_psn = my_dest[i].psn;
attr.max_rd_atomic = 1;
if (ibv_modify_qp(ctx->qp[i], &attr,
IBV_QP_STATE |
IBV_QP_TIMEOUT |
IBV_QP_RETRY_CNT |
IBV_QP_RNR_RETRY |
IBV_QP_SQ_PSN |
IBV_QP_MAX_QP_RD_ATOMIC)) {
fprintf(stderr, "Failed to modify QP[%d] to RTS\n", i);
return 1;
}
}
return 0;
}
static struct pingpong_dest *pp_client_exch_dest(const char *servername, int port,
const struct pingpong_dest *my_dest)
{
struct addrinfo *res, *t;
struct addrinfo hints = {
.ai_family = AF_UNSPEC,
.ai_socktype = SOCK_STREAM
};
char *service;
char msg[ sizeof "0000:000000:000000"];
int n;
int r;
int i;
int sockfd = -1;
struct pingpong_dest *rem_dest = NULL;
asprintf(&service, "%d", port);
n = getaddrinfo(servername, service, &hints, &res);
if (n < 0) {
fprintf(stderr, "%s for %s:%d\n", gai_strerror(n), servername, port);
return NULL;
}
for (t = res; t; t = t->ai_next) {
sockfd = socket(t->ai_family, t->ai_socktype, t->ai_protocol);
if (sockfd >= 0) {
if (!connect(sockfd, t->ai_addr, t->ai_addrlen))
break;
close(sockfd);
sockfd = -1;
}
}
freeaddrinfo(res);
if (sockfd < 0) {
fprintf(stderr, "Couldn't connect to %s:%d\n", servername, port);
return NULL;
}
for (i = 0; i < MAX_QP; ++i) {
sprintf(msg, "%04x:%06x:%06x", my_dest[i].lid, my_dest[i].qpn, my_dest[i].psn);
if (write(sockfd, msg, sizeof msg) != sizeof msg) {
fprintf(stderr, "Couldn't send local address\n");
goto out;
}
}
rem_dest = malloc(MAX_QP * sizeof *rem_dest);
if (!rem_dest)
goto out;
for (i = 0; i < MAX_QP; ++i) {
n = 0;
while (n < sizeof msg) {
r = read(sockfd, msg + n, sizeof msg - n);
if (r < 0) {
perror("client read");
fprintf(stderr, "%d/%d: Couldn't read remote address [%d]\n",
n, (int) sizeof msg, i);
goto out;
}
n += r;
}
sscanf(msg, "%x:%x:%x",
&rem_dest[i].lid, &rem_dest[i].qpn, &rem_dest[i].psn);
}
write(sockfd, "done", sizeof "done");
out:
close(sockfd);
return rem_dest;
}
static struct pingpong_dest *pp_server_exch_dest(struct pingpong_context *ctx,
int ib_port, int port,
const struct pingpong_dest *my_dest)
{
struct addrinfo *res, *t;
struct addrinfo hints = {
.ai_flags = AI_PASSIVE,
.ai_family = AF_UNSPEC,
.ai_socktype = SOCK_STREAM
};
char *service;
char msg[ sizeof "0000:000000:000000"];
int n;
int r;
int i;
int sockfd = -1, connfd;
struct pingpong_dest *rem_dest = NULL;
asprintf(&service, "%d", port);
n = getaddrinfo(NULL, service, &hints, &res);
if (n < 0) {
fprintf(stderr, "%s for port %d\n", gai_strerror(n), port);
return NULL;
}
for (t = res; t; t = t->ai_next) {
sockfd = socket(t->ai_family, t->ai_socktype, t->ai_protocol);
if (sockfd >= 0) {
n = 1;
setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n);
if (!bind(sockfd, t->ai_addr, t->ai_addrlen))
break;
close(sockfd);
sockfd = -1;
}
}
freeaddrinfo(res);
if (sockfd < 0) {
fprintf(stderr, "Couldn't listen to port %d\n", port);
return NULL;
}
listen(sockfd, 1);
connfd = accept(sockfd, NULL, 0);
close(sockfd);
if (connfd < 0) {
fprintf(stderr, "accept() failed\n");
return NULL;
}
rem_dest = malloc(MAX_QP *sizeof *rem_dest);
if (!rem_dest)
goto out;
for (i = 0; i < MAX_QP; ++i) {
n = 0;
while (n < sizeof msg) {
r = read(connfd, msg + n, sizeof msg - n);
if (r < 0) {
perror("server read");
fprintf(stderr, "%d/%d: Couldn't read remote address [%d]\n",
n, (int) sizeof msg, i);
goto out;
}
n += r;
}
sscanf(msg, "%x:%x:%x",
&rem_dest[i].lid, &rem_dest[i].qpn, &rem_dest[i].psn);
}
if (pp_connect_ctx(ctx, ib_port, my_dest, rem_dest)) {
fprintf(stderr, "Couldn't connect to remote QP\n");
free(rem_dest);
rem_dest = NULL;
goto out;
}
for (i = 0; i < MAX_QP; ++i) {
sprintf(msg, "%04x:%06x:%06x", my_dest[i].lid, my_dest[i].qpn, my_dest[i].psn);
if (write(connfd, msg, sizeof msg) != sizeof msg) {
fprintf(stderr, "Couldn't send local address\n");
free(rem_dest);
rem_dest = NULL;
goto out;
}
}
read(connfd, msg, sizeof msg);
out:
close(connfd);
return rem_dest;
}
static struct pingpong_context *pp_init_ctx(struct ibv_device *ib_dev, int size,
int num_qp, int rx_depth, int port,
int use_event)
{
struct pingpong_context *ctx;
int i;
ctx = malloc(sizeof *ctx);
if (!ctx)
return NULL;
ctx->size = size;
ctx->num_qp = num_qp;
ctx->rx_depth = rx_depth;
ctx->buf = memalign(page_size, size);
if (!ctx->buf) {
fprintf(stderr, "Couldn't allocate work buf.\n");
return NULL;
}
memset(ctx->buf, 0, size);
ctx->context = ibv_open_device(ib_dev);
if (!ctx->context) {
fprintf(stderr, "Couldn't get context for %s\n",
ibv_get_device_name(ib_dev));
return NULL;
}
if (use_event) {
ctx->channel = ibv_create_comp_channel(ctx->context);
if (!ctx->channel) {
fprintf(stderr, "Couldn't create completion channel\n");
return NULL;
}
} else
ctx->channel = NULL;
ctx->pd = ibv_alloc_pd(ctx->context);
if (!ctx->pd) {
fprintf(stderr, "Couldn't allocate PD\n");
return NULL;
}
ctx->mr = ibv_reg_mr(ctx->pd, ctx->buf, size, IBV_ACCESS_LOCAL_WRITE);
if (!ctx->mr) {
fprintf(stderr, "Couldn't allocate MR\n");
return NULL;
}
ctx->cq = ibv_create_cq(ctx->context, rx_depth + 1, NULL,
ctx->channel, 0);
if (!ctx->cq) {
fprintf(stderr, "Couldn't create CQ\n");
return NULL;
}
pthread_create(&limit_thread, NULL, (void *) asyncwatch, (void *)ctx->context);
{
struct ibv_srq_attr srq_attr;
struct ibv_srq_init_attr attr = {
.attr = {
.max_wr = rx_depth,
.max_sge = 1
}
};
ctx->srq = ibv_create_srq(ctx->pd, &attr);
if (!ctx->srq) {
fprintf(stderr, "Couldn't create SRQ\n");
return NULL;
}
srq_attr.max_wr = rx_depth;
srq_attr.max_sge = 1;
srq_attr.srq_limit = rx_depth-5;
if(ibv_modify_srq(ctx->srq, &srq_attr, IBV_SRQ_LIMIT)) {
fprintf(stderr,"Error modifying SRQ\n");
exit(-1);
}
}
for (i = 0; i < num_qp; ++i) {
struct ibv_qp_init_attr attr = {
.send_cq = ctx->cq,
.recv_cq = ctx->cq,
.srq = ctx->srq,
.cap = {
.max_send_wr = 4,
.max_send_sge = 1,
},
.qp_type = IBV_QPT_RC
};
ctx->qp[i] = ibv_create_qp(ctx->pd, &attr);
if (!ctx->qp[i]) {
fprintf(stderr, "Couldn't create QP[%d]\n", i);
return NULL;
}
}
for (i = 0; i < num_qp; ++i) {
struct ibv_qp_attr attr;
attr.qp_state = IBV_QPS_INIT;
attr.pkey_index = 0;
attr.port_num = port;
attr.qp_access_flags = 0;
if (ibv_modify_qp(ctx->qp[i], &attr,
IBV_QP_STATE |
IBV_QP_PKEY_INDEX |
IBV_QP_PORT |
IBV_QP_ACCESS_FLAGS)) {
fprintf(stderr, "Failed to modify QP[%d] to INIT\n", i);
return NULL;
}
}
return ctx;
}
static int pp_post_recv(struct pingpong_context *ctx, int n)
{
struct ibv_sge list = {
.addr = (uintptr_t) ctx->buf,
.length = ctx->size,
.lkey = ctx->mr->lkey
};
struct ibv_recv_wr wr = {
.wr_id = PINGPONG_RECV_WRID,
.sg_list = &list,
.num_sge = 1,
};
struct ibv_recv_wr *bad_wr;
int i;
for (i = 0; i < n; ++i)
if (ibv_post_srq_recv(ctx->srq, &wr, &bad_wr))
break;
return i;
}
static int pp_post_send(struct pingpong_context *ctx, int qp_index)
{
struct ibv_sge list = {
.addr = (uintptr_t) ctx->buf,
.length = ctx->size,
.lkey = ctx->mr->lkey
};
struct ibv_send_wr wr = {
.wr_id = PINGPONG_SEND_WRID,
.sg_list = &list,
.num_sge = 1,
.opcode = IBV_WR_SEND,
.send_flags = IBV_SEND_SIGNALED,
};
struct ibv_send_wr *bad_wr;
return ibv_post_send(ctx->qp[qp_index], &wr, &bad_wr);
}
static int find_qp(int qpn, struct pingpong_context *ctx, int num_qp)
{
int i;
for (i = 0; i < num_qp; ++i)
if (ctx->qp[i]->qp_num == qpn)
return i;
return -1;
}
static void usage(const char *argv0)
{
printf("Usage:\n");
printf(" %s start a server and wait for connection\n", argv0);
printf(" %s <host> connect to server at <host>\n", argv0);
printf("\n");
printf("Options:\n");
printf(" -p, --port=<port> listen on/connect to port <port> (default 18515)\n");
printf(" -d, --ib-dev=<dev> use IB device <dev> (default first device found)\n");
printf(" -i, --ib-port=<port> use port <port> of IB device (default 1)\n");
printf(" -s, --size=<size> size of message to exchange (default 4096)\n");
printf(" -q, --num-qp=<num> number of QPs to use (default 16)\n");
printf(" -r, --rx-depth=<dep> number of receives to post at a time (default 500)\n");
printf(" -n, --iters=<iters> number of exchanges per QP(default 1000)\n");
printf(" -e, --events sleep on CQ events (default poll)\n");
}
int main(int argc, char *argv[])
{
struct dlist *dev_list;
struct ibv_device *ib_dev;
struct pingpong_context *ctx;
struct pingpong_dest my_dest[MAX_QP];
struct pingpong_dest *rem_dest;
struct timeval start, end;
char *ib_devname = NULL;
char *servername = NULL;
int port = 18515;
int ib_port = 1;
int size = 4096;
int num_qp = 16;
int rx_depth = 500;
int iters = 1000;
int use_event = 0;
int routs;
int rcnt, scnt;
int i;
srand48(getpid() * time(NULL));
while (1) {
int c;
static struct option long_options[] = {
{ .name = "port", .has_arg = 1, .val = 'p' },
{ .name = "ib-dev", .has_arg = 1, .val = 'd' },
{ .name = "ib-port", .has_arg = 1, .val = 'i' },
{ .name = "size", .has_arg = 1, .val = 's' },
{ .name = "num-qp", .has_arg = 1, .val = 'q' },
{ .name = "rx-depth", .has_arg = 1, .val = 'r' },
{ .name = "iters", .has_arg = 1, .val = 'n' },
{ .name = "events", .has_arg = 0, .val = 'e' },
{ 0 }
};
c = getopt_long(argc, argv, "p:d:i:s:q:r:n:e", long_options, NULL);
if (c == -1)
break;
switch (c) {
case 'p':
port = strtol(optarg, NULL, 0);
if (port < 0 || port > 65535) {
usage(argv[0]);
return 1;
}
break;
case 'd':
ib_devname = strdupa(optarg);
break;
case 'i':
ib_port = strtol(optarg, NULL, 0);
if (ib_port < 0) {
usage(argv[0]);
return 1;
}
break;
case 's':
size = strtol(optarg, NULL, 0);
break;
case 'q':
num_qp = strtol(optarg, NULL, 0);
break;
case 'r':
rx_depth = strtol(optarg, NULL, 0);
break;
case 'n':
iters = strtol(optarg, NULL, 0);
break;
case 'e':
++use_event;
break;
default:
usage(argv[0]);
return 1;
}
}
if (optind == argc - 1)
servername = strdupa(argv[optind]);
else if (optind < argc) {
usage(argv[0]);
return 1;
}
page_size = sysconf(_SC_PAGESIZE);
dev_list = ibv_get_devices();
if (!dev_list) {
fprintf(stderr, "No IB devices found\n");
return 1;
}
dlist_start(dev_list);
if (!ib_devname) {
ib_dev = dlist_next(dev_list);
if (!ib_dev) {
fprintf(stderr, "No IB devices found\n");
return 1;
}
} else {
dlist_for_each_data(dev_list, ib_dev, struct ibv_device)
if (!strcmp(ibv_get_device_name(ib_dev), ib_devname))
break;
if (!ib_dev) {
fprintf(stderr, "IB device %s not found\n", ib_devname);
return 1;
}
}
ctx = pp_init_ctx(ib_dev, size, num_qp, rx_depth, ib_port, use_event);
if (!ctx)
return 1;
routs = pp_post_recv(ctx, ctx->rx_depth);
if (routs < ctx->rx_depth) {
fprintf(stderr, "Couldn't post receive (%d)\n", routs);
return 1;
}
for (i = 0; i < num_qp; ++i) {
my_dest[i].qpn = ctx->qp[i]->qp_num;
my_dest[i].psn = lrand48() & 0xffffff;
my_dest[i].lid = pp_get_local_lid(ctx, ib_port);
if (!my_dest[i].lid) {
fprintf(stderr, "Couldn't get local LID\n");
return 1;
}
printf(" local address: LID 0x%04x, QPN 0x%06x, PSN 0x%06x\n",
my_dest[i].lid, my_dest[i].qpn, my_dest[i].psn);
}
if (servername)
rem_dest = pp_client_exch_dest(servername, port, my_dest);
else
rem_dest = pp_server_exch_dest(ctx, ib_port, port, my_dest);
if (!rem_dest)
return 1;
for (i = 0; i < num_qp; ++i)
printf(" remote address: LID 0x%04x, QPN 0x%06x, PSN 0x%06x\n",
rem_dest[i].lid, rem_dest[i].qpn, rem_dest[i].psn);
if (servername)
if (pp_connect_ctx(ctx, ib_port, my_dest, rem_dest))
return 1;
if (use_event)
if (ibv_req_notify_cq(ctx->cq, 0)) {
fprintf(stderr, "Couldn't request CQ notification\n");
return 1;
}
if (servername)
for (i = 0; i < num_qp; ++i)
if (pp_post_send(ctx, i)) {
fprintf(stderr, "Couldn't post send\n");
return 1;
}
if (gettimeofday(&start, NULL)) {
perror("gettimeofday");
return 1;
}
rcnt = scnt = 0;
while (rcnt < iters || scnt < iters) {
if (use_event) {
struct ibv_cq *ev_cq;
void *ev_ctx;
if (ibv_get_cq_event(ctx->channel, &ev_cq, &ev_ctx)) {
fprintf(stderr, "Failed to get cq_event\n");
return 1;
}
if (ev_cq != ctx->cq) {
fprintf(stderr, "CQ event for unknown CQ %p\n", ev_cq);
return 1;
}
if (ibv_req_notify_cq(ctx->cq, 0)) {
fprintf(stderr, "Couldn't request CQ notification\n");
return 1;
}
}
{
struct ibv_wc wc[2];
int ne, j;
do {
ne = ibv_poll_cq(ctx->cq, 2, wc);
} while (!use_event && ne < 1);
if (ne < 0) {
fprintf(stderr, "poll CQ failed %d\n", ne);
return 1;
}
for (i = 0; i < ne; ++i) {
if (wc[i].status != IBV_WC_SUCCESS) {
fprintf(stderr, "Failed status %d for wr_id %d\n",
wc[i].status, (int) wc[i].wr_id);
return 1;
}
switch ((int) wc[i].wr_id) {
case PINGPONG_SEND_WRID:
++scnt;
break;
case PINGPONG_RECV_WRID:
if (--routs <= 1) {
routs += pp_post_recv(ctx, ctx->rx_depth - routs);
if (routs < ctx->rx_depth) {
fprintf(stderr,
"Couldn't post receive (%d)\n",
routs);
return 1;
}
}
fprintf(stderr,"routs %d\n", routs);
if (scnt < iters) {
j = find_qp(wc[i].qp_num, ctx, num_qp);
if (j < 0) {
fprintf(stderr, "Couldn't find QPN %06x\n",
wc[i].qp_num);
return 1;
}
if (pp_post_send(ctx, j)) {
fprintf(stderr, "Couldn't post send\n");
return 1;
}
}
++rcnt;
break;
default:
fprintf(stderr, "Completion for unknown wr_id %d\n",
(int) wc[i].wr_id);
return 1;
}
}
}
}
if (gettimeofday(&end, NULL)) {
perror("gettimeofday");
return 1;
}
{
float usec = (end.tv_sec - start.tv_sec) * 1000000 +
(end.tv_usec - start.tv_usec);
long long bytes = (long long) size * iters * 2;
printf("%lld bytes in %.2f seconds = %.2f Mbit/sec\n",
bytes, usec / 1000000., bytes * 8. / usec);
printf("%d iters in %.2f seconds = %.2f usec/iter\n",
iters, usec / 1000000., usec / iters);
}
sleep(3);
return 0;
}
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