1 #include "network_smpi.hpp"
2 #include "simgrid/sg_config.h"
4 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
6 xbt_dynar_t smpi_bw_factor = NULL;
7 xbt_dynar_t smpi_lat_factor = NULL;
9 typedef struct s_smpi_factor *smpi_factor_t;
10 typedef struct s_smpi_factor {
15 xbt_dict_t gap_lookup = NULL;
17 static int factor_cmp(const void *pa, const void *pb)
19 return (((s_smpi_factor_t*)pa)->factor > ((s_smpi_factor_t*)pb)->factor);
23 static xbt_dynar_t parse_factor(const char *smpi_coef_string)
26 unsigned int iter = 0;
28 xbt_dynar_t smpi_factor, radical_elements, radical_elements2 = NULL;
30 smpi_factor = xbt_dynar_new(sizeof(s_smpi_factor_t), NULL);
31 radical_elements = xbt_str_split(smpi_coef_string, ";");
32 xbt_dynar_foreach(radical_elements, iter, value) {
34 radical_elements2 = xbt_str_split(value, ":");
35 if (xbt_dynar_length(radical_elements2) != 2)
36 xbt_die("Malformed radical for smpi factor!");
37 fact.factor = atol(xbt_dynar_get_as(radical_elements2, 0, char *));
38 fact.value = atof(xbt_dynar_get_as(radical_elements2, 1, char *));
39 xbt_dynar_push_as(smpi_factor, s_smpi_factor_t, fact);
40 XBT_DEBUG("smpi_factor:\t%ld : %f", fact.factor, fact.value);
41 xbt_dynar_free(&radical_elements2);
43 xbt_dynar_free(&radical_elements);
45 xbt_dynar_sort(smpi_factor, &factor_cmp);
46 xbt_dynar_foreach(smpi_factor, iter, fact) {
47 XBT_DEBUG("ordered smpi_factor:\t%ld : %f", fact.factor, fact.value);
57 /************************************************************************/
58 /* New model based on LV08 and experimental results of MPI ping-pongs */
59 /************************************************************************/
60 /* @Inproceedings{smpi_ipdps, */
61 /* author={Pierre-Nicolas Clauss and Mark Stillwell and Stéphane Genaud and Frédéric Suter and Henri Casanova and Martin Quinson}, */
62 /* title={Single Node On-Line Simulation of {MPI} Applications with SMPI}, */
63 /* booktitle={25th IEEE International Parallel and Distributed Processing Symposium (IPDPS'11)}, */
64 /* address={Anchorage (Alaska) USA}, */
68 void surf_network_model_init_SMPI(void)
71 if (surf_network_model)
73 surf_network_model = new NetworkSmpiModel();
75 xbt_dynar_push(model_list, &surf_network_model);
77 xbt_cfg_setdefault_double(_sg_cfg_set, "network/sender_gap", 10e-6);
78 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
81 void NetworkSmpiModel::gapAppend(double size, const NetworkCm02LinkLmmPtr link, NetworkCm02ActionLmmPtr action)
83 const char *src = link->m_name;
85 //surf_action_network_CM02_t last_action;
88 if (sg_sender_gap > 0.0) {
90 gap_lookup = xbt_dict_new();
92 fifo = (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup, src);
93 action->m_senderGap = 0.0;
94 if (fifo && xbt_fifo_size(fifo) > 0) {
95 /* Compute gap from last send */
97 (surf_action_network_CM02_t)
98 xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));*/
99 // bw = net_get_link_bandwidth(link);
100 action->m_senderGap = sg_sender_gap;
101 /* max(sg_sender_gap,last_action->sender.size / bw);*/
102 action->m_latency += action->m_senderGap;
104 /* Append action as last send */
105 /*action->sender.link_name = link->lmm_resource.generic_resource.name;
107 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
108 action->sender.link_name);
110 fifo = xbt_fifo_new();
111 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
113 action->sender.fifo_item = xbt_fifo_push(fifo, action);*/
114 action->m_senderSize = size;
118 void NetworkSmpiModel::gapRemove(ActionLmmPtr lmm_action)
122 NetworkCm02ActionLmmPtr action = (NetworkCm02ActionLmmPtr)(lmm_action);
124 if (sg_sender_gap > 0.0 && action->p_senderLinkName
125 && action->p_senderFifoItem) {
127 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
128 action->p_senderLinkName);
129 xbt_fifo_remove_item(fifo, action->p_senderFifoItem);
130 size = xbt_fifo_size(fifo);
133 xbt_dict_remove(gap_lookup, action->p_senderLinkName);
134 size = xbt_dict_length(gap_lookup);
136 xbt_dict_free(&gap_lookup);
142 double NetworkSmpiModel::latencyFactor(double size)
146 parse_factor(sg_cfg_get_string("smpi/bw_factor"));
148 unsigned int iter = 0;
149 s_smpi_factor_t fact;
151 xbt_dynar_foreach(smpi_bw_factor, iter, fact) {
152 if (size <= fact.factor) {
153 XBT_DEBUG("%lf <= %ld return %f", size, fact.factor, current);
158 XBT_DEBUG("%lf > %ld return %f", size, fact.factor, current);
162 double NetworkSmpiModel::bandwidthFactor(double size)
164 if (!smpi_lat_factor)
166 parse_factor(sg_cfg_get_string("smpi/lat_factor"));
168 unsigned int iter = 0;
169 s_smpi_factor_t fact;
171 xbt_dynar_foreach(smpi_lat_factor, iter, fact) {
172 if (size <= fact.factor) {
173 XBT_DEBUG("%lf <= %ld return %f", size, fact.factor, current);
178 XBT_DEBUG("%lf > %ld return %f", size, fact.factor, current);
183 double NetworkSmpiModel::bandwidthConstraint(double rate, double bound, double size)
185 return rate < 0 ? bound : min(bound, rate * bandwidthFactor(size));