Commit d324b101 authored by mubarak's avatar mubarak

Adding synthetic traffic patterns (currently with dragonfly model)

parent 07e39f08
......@@ -37,7 +37,8 @@ src_libcodes_net_a_SOURCES = \
src/models/networks/model-net/model-net-sched.c \
src/models/networks/model-net/model-net-sched-impl.h \
src/models/networks/model-net/model-net-sched-impl.c \
src/models/mpi-trace-replay/model-net-mpi-wrklds.c
src/models/mpi-trace-replay/model-net-mpi-wrklds.c \
src/models/mpi-trace-replay/model-net-synthetic.c
bin_PROGRAMS += src/models/mpi-trace-replay/model-net-mpi-wrklds
......@@ -45,3 +46,10 @@ src_models_mpi_trace_replay_model_net_mpi_wrklds_SOURCES = src/models/mpi-trace-
src_models_mpi_trace_replay_model_net_mpi_wrklds_LDADD = $(testlib) $(CODES_BASE_LIBS)
src_models_mpi_trace_replay_model_net_mpi_wrklds_LDFLAGS = $(CODES_BASE_LDFLAGS)
src_models_mpi_trace_replay_model_net_mpi_wrklds_CFLAGS = ${CODES_BASE_CFLAGS}
bin_PROGRAMS += src/models/mpi-trace-replay/model-net-synthetic
src_models_mpi_trace_replay_model_net_synthetic_SOURCES = src/models/mpi-trace-replay/model-net-synthetic.c
src_models_mpi_trace_replay_model_net_synthetic_LDADD = $(testlib) $(CODES_BASE_LIBS)
src_models_mpi_trace_replay_model_net_synthetic_LDFLAGS = $(CODES_BASE_LDFLAGS)
src_models_mpi_trace_replay_model_net_synthetic_CFLAGS = ${CODES_BASE_CFLAGS}
************ Synthetic traffic with dragonfly network model **********
- traffic patterns supported: uniform random and nearest neighbor traffic.
- Uniform random traffic: sends messages to a randomly selected destination node. It is uniformly distributed throughout the network and gives a better performance with minimal routing and therefore higher simulation event rate.
- Nearest neighbor traffic: with minimal routing, it sends traffic to the single global channel connecting two groups (it congests the network when using minimal routing). May have a low simulation event rate because of the congestion being simulated.
HOW TO RUN:
ROSS optimistic mode:
mpirun -np 4 ./src/models/mpi-trace-replay/model-net-synthetic --sync=3 --traffic=2 --arrival_time=500.0 --extramem=200000 ../tests/conf/modelnet-synthetic-dragonfly.conf
ROSS serial mode:
./src/models/mpi-trace-replay/model-net-synthetic --sync=1 --traffic=2 --arrival_time=500.0 --extramem=200000 ../tests/conf/modelnet-synthetic-dragonfly.conf
options:
arrival_time: inter-arrival time between the messages. Smaller inter-arrival time means messages will arrive more frequently (smaller inter-arrival time can cause congestion in the network and may overflow the network buffers).
traffic: 1 for uniform random traffic, 2 for nearest neighbor traffic.
LPGROUPS
{
MODELNET_GRP
{
repetitions="36";
server="2";
modelnet_dragonfly="2";
dragonfly_router="1";
}
}
PARAMS
{
packet_size="512";
modelnet_order=( "dragonfly" );
# scheduler options
modelnet_scheduler="fcfs";
chunk_size="32";
# modelnet_scheduler="round-robin";
num_vcs="1";
num_routers="4";
local_vc_size="16384";
global_vc_size="32768";
cn_vc_size="16384";
local_bandwidth="5.25";
global_bandwidth="4.7";
cn_bandwidth="5.25";
message_size="512";
routing="minimal";
}
/*
* Copyright (C) 2015 University of Chicago.
* See COPYRIGHT notice in top-level directory.
*
*/
/*
* The test program generates some synthetic traffic patterns for the model-net network models.
*/
#include "codes/model-net.h"
#include "codes/lp-io.h"
#include "codes/codes.h"
#include "codes/codes_mapping.h"
#include "codes/configuration.h"
#include "codes/lp-type-lookup.h"
#define PAYLOAD_SZ 512
static int net_id = 0;
static int num_routers = 0;
static int num_servers = 0;
static int offset = 2;
static int traffic = 1;
static double arrival_time = 1000.0;
/* whether to pull instead of push */
static int do_pull = 0;
static int num_routers_per_rep = 0;
static int num_servers_per_rep = 0;
static int num_reps = 0;
typedef struct svr_msg svr_msg;
typedef struct svr_state svr_state;
/* global variables for codes mapping */
static char group_name[MAX_NAME_LENGTH];
static char lp_type_name[MAX_NAME_LENGTH];
static int group_index, lp_type_index, rep_id, offset;
/* type of events */
enum svr_event
{
KICKOFF, /* kickoff event */
REMOTE, /* remote event */
LOCAL /* local event */
};
/* type of synthetic traffic */
enum TRAFFIC
{
UNIFORM = 1,
NEAREST_NEIGHBOR = 2
};
struct svr_state
{
int msg_sent_count; /* requests sent */
int msg_recvd_count; /* requests recvd */
int local_recvd_count; /* number of local messages received */
tw_stime start_ts; /* time that we started sending requests */
tw_stime end_ts; /* time that we ended sending requests */
};
struct svr_msg
{
enum svr_event svr_event_type;
tw_lpid src; /* source of this request or ack */
int incremented_flag; /* helper for reverse computation */
};
static void svr_init(
svr_state * ns,
tw_lp * lp);
static void svr_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp);
static void svr_rev_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp);
static void svr_finalize(
svr_state * ns,
tw_lp * lp);
tw_lptype svr_lp = {
(init_f) svr_init,
(pre_run_f) NULL,
(event_f) svr_event,
(revent_f) svr_rev_event,
(final_f) svr_finalize,
(map_f) codes_mapping,
sizeof(svr_state),
};
const tw_optdef app_opt [] =
{
TWOPT_GROUP("Model net synthetic traffic " ),
TWOPT_UINT("traffic", traffic, "UNIFORM RANDOM=1, NEAREST NEIGHBOR=2 "),
TWOPT_STIME("arrival_time", arrival_time, "INTER-ARRIVAL TIME"),
TWOPT_END()
};
const tw_lptype* svr_get_lp_type()
{
return(&svr_lp);
}
static void svr_add_lp_type()
{
lp_type_register("server", svr_get_lp_type());
}
static void issue_event(
svr_state * ns,
tw_lp * lp)
{
tw_event *e;
svr_msg *m;
tw_stime kickoff_time;
/* each server sends a dummy event to itself that will kick off the real
* simulation
*/
/* skew each kickoff event slightly to help avoid event ties later on */
kickoff_time = g_tw_lookahead + arrival_time + tw_rand_exponential(lp->rng, (double)arrival_time/100);
e = tw_event_new(lp->gid, kickoff_time, lp);
m = tw_event_data(e);
m->svr_event_type = KICKOFF;
tw_event_send(e);
}
static void svr_init(
svr_state * ns,
tw_lp * lp)
{
issue_event(ns, lp);
return;
}
static void handle_kickoff_rev_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp)
{
ns->msg_sent_count--;
model_net_event_rc(net_id, lp, PAYLOAD_SZ);
}
static void handle_kickoff_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp)
{
char* anno;
tw_lpid local_dest = -1, global_dest = -1;
svr_msg * m_local = malloc(sizeof(svr_msg));
svr_msg * m_remote = malloc(sizeof(svr_msg));
m_local->svr_event_type = LOCAL;
m_local->src = lp->gid;
memcpy(m_remote, m_local, sizeof(svr_msg));
m_remote->svr_event_type = REMOTE;
assert(net_id == DRAGONFLY); /* only supported for dragonfly model right now. */
ns->start_ts = tw_now(lp);
int num_routers_per_grp;
configuration_get_value_int(&config, "PARAMS", "num_routers", anno, &num_routers_per_grp);
num_servers_per_rep = codes_mapping_get_lp_count("MODELNET_GRP", 1,
"server", NULL, 1);
num_routers_per_rep = codes_mapping_get_lp_count("MODELNET_GRP", 1,
"dragonfly_router", NULL, 1);
int lps_per_rep = num_servers_per_rep * 2 + num_routers_per_rep;
int num_groups = (num_routers_per_grp * (num_routers_per_grp/2) + 1);
int num_nodes = num_groups * num_routers_per_grp * (num_routers_per_grp / 2);
int num_nodes_per_grp = num_routers_per_grp * (num_routers_per_grp / 2);
codes_mapping_get_lp_info(lp->gid, group_name, &group_index, lp_type_name, &lp_type_index, anno, &rep_id, &offset);
/* in case of uniform random traffic, send to a random destination. */
if(traffic == UNIFORM)
{
local_dest = tw_rand_integer(lp->rng, 0, num_nodes - 1);
//printf("\n LP %ld sending to %d ", lp->gid, local_dest);
}
else if(traffic == NEAREST_NEIGHBOR)
{
local_dest = (rep_id * 2 + offset + num_nodes_per_grp) % num_nodes;
//printf("\n LP %ld sending to %ld num nodes %d ", rep_id * 2 + offset, local_dest, num_nodes);
}
assert(local_dest < num_nodes);
codes_mapping_get_lp_id(group_name, lp_type_name, anno, 1, local_dest / num_servers_per_rep, local_dest % num_servers_per_rep, &global_dest);
ns->msg_sent_count++;
model_net_event(net_id, "test", global_dest, PAYLOAD_SZ, 0.0, sizeof(svr_msg), (const void*)m_remote, sizeof(svr_msg), (const void*)m_local, lp);
issue_event(ns, lp);
return;
}
static void handle_remote_rev_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp)
{
ns->msg_recvd_count--;
}
static void handle_remote_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp)
{
ns->msg_recvd_count++;
}
static void handle_local_rev_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp)
{
ns->local_recvd_count--;
}
static void handle_local_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp)
{
ns->local_recvd_count++;
}
/* convert ns to seconds */
static tw_stime ns_to_s(tw_stime ns)
{
return(ns / (1000.0 * 1000.0 * 1000.0));
}
/* convert seconds to ns */
static tw_stime s_to_ns(tw_stime ns)
{
return(ns * (1000.0 * 1000.0 * 1000.0));
}
static void svr_finalize(
svr_state * ns,
tw_lp * lp)
{
ns->end_ts = tw_now(lp);
printf("server %llu recvd %d bytes in %f seconds, %f MiB/s sent_count %d recvd_count %d local_count %d \n", (unsigned long long)lp->gid, PAYLOAD_SZ*ns->msg_recvd_count, ns_to_s(ns->end_ts-ns->start_ts),
((double)(PAYLOAD_SZ*ns->msg_sent_count)/(double)(1024*1024)/ns_to_s(ns->end_ts-ns->start_ts)), ns->msg_sent_count, ns->msg_recvd_count, ns->local_recvd_count);
return;
}
static void svr_rev_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp)
{
switch (m->svr_event_type)
{
case REMOTE:
handle_remote_rev_event(ns, b, m, lp);
break;
case LOCAL:
handle_local_rev_event(ns, b, m, lp);
break;
case KICKOFF:
handle_kickoff_rev_event(ns, b, m, lp);
break;
default:
assert(0);
break;
}
}
static void svr_event(
svr_state * ns,
tw_bf * b,
svr_msg * m,
tw_lp * lp)
{
switch (m->svr_event_type)
{
case REMOTE:
handle_remote_event(ns, b, m, lp);
break;
case LOCAL:
handle_local_event(ns, b, m, lp);
break;
case KICKOFF:
handle_kickoff_event(ns, b, m, lp);
break;
default:
printf("\n Invalid message type %d ", m->svr_event_type);
assert(0);
break;
}
}
int main(
int argc,
char **argv)
{
int nprocs;
int rank;
int num_nets;
int *net_ids;
lp_io_handle handle;
tw_opt_add(app_opt);
tw_init(&argc, &argv);
if(argc < 2)
{
printf("\n Usage: mpirun <args> --sync=2/3 mapping_file_name.conf (optional --nkp) ");
MPI_Finalize();
return 0;
}
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
configuration_load(argv[2], MPI_COMM_WORLD, &config);
model_net_register();
svr_add_lp_type();
codes_mapping_setup();
net_ids = model_net_configure(&num_nets);
assert(num_nets==1);
net_id = *net_ids;
free(net_ids);
num_servers_per_rep = codes_mapping_get_lp_count("MODELNET_GRP", 0, "server",
NULL, 1);
if(net_id == DRAGONFLY)
{
num_routers = codes_mapping_get_lp_count("MODELNET_GRP", 0,
"dragonfly_router", NULL, 1);
offset = 1;
}
if(lp_io_prepare("modelnet-test", LP_IO_UNIQ_SUFFIX, &handle, MPI_COMM_WORLD) < 0)
{
return(-1);
}
tw_run();
model_net_report_stats(net_id);
if(lp_io_flush(handle, MPI_COMM_WORLD) < 0)
{
return(-1);
}
tw_end();
return 0;
}
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