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();
74 net_define_callbacks();
75 xbt_dynar_push(model_list, &surf_network_model);
76 //network_solve = lmm_solve;
78 xbt_cfg_setdefault_double(_sg_cfg_set, "network/sender_gap", 10e-6);
79 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
82 void NetworkSmpiModel::gapAppend(double size, const NetworkCm02LinkLmmPtr link, NetworkCm02ActionLmmPtr action)
84 const char *src = link->m_name;
86 //surf_action_network_CM02_t last_action;
89 if (sg_sender_gap > 0.0) {
91 gap_lookup = xbt_dict_new_homogeneous(NULL);
93 fifo = (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup, src);
94 action->m_senderGap = 0.0;
95 if (fifo && xbt_fifo_size(fifo) > 0) {
96 /* Compute gap from last send */
98 (surf_action_network_CM02_t)
99 xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));*/
100 // bw = net_get_link_bandwidth(link);
101 action->m_senderGap = sg_sender_gap;
102 /* max(sg_sender_gap,last_action->sender.size / bw);*/
103 action->m_latency += action->m_senderGap;
105 /* Append action as last send */
106 /*action->sender.link_name = link->lmm_resource.generic_resource.name;
108 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
109 action->sender.link_name);
111 fifo = xbt_fifo_new();
112 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
114 action->sender.fifo_item = xbt_fifo_push(fifo, action);*/
115 action->m_senderSize = size;
119 void NetworkSmpiModel::gapRemove(ActionLmmPtr lmm_action)
123 NetworkCm02ActionLmmPtr action = (NetworkCm02ActionLmmPtr)(lmm_action);
125 if (sg_sender_gap > 0.0 && action->p_senderLinkName
126 && action->p_senderFifoItem) {
128 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
129 action->p_senderLinkName);
130 xbt_fifo_remove_item(fifo, action->p_senderFifoItem);
131 size = xbt_fifo_size(fifo);
134 xbt_dict_remove(gap_lookup, action->p_senderLinkName);
135 size = xbt_dict_length(gap_lookup);
137 xbt_dict_free(&gap_lookup);
143 double NetworkSmpiModel::bandwidthFactor(double size)
147 parse_factor(sg_cfg_get_string("smpi/bw_factor"));
149 unsigned int iter = 0;
150 s_smpi_factor_t fact;
152 xbt_dynar_foreach(smpi_bw_factor, iter, fact) {
153 if (size <= fact.factor) {
154 XBT_DEBUG("%f <= %ld return %f", size, fact.factor, current);
159 XBT_DEBUG("%f > %ld return %f", size, fact.factor, current);
163 double NetworkSmpiModel::latencyFactor(double size)
165 if (!smpi_lat_factor)
167 parse_factor(sg_cfg_get_string("smpi/lat_factor"));
169 unsigned int iter = 0;
170 s_smpi_factor_t fact;
172 xbt_dynar_foreach(smpi_lat_factor, iter, fact) {
173 if (size <= fact.factor) {
174 XBT_DEBUG("%f <= %ld return %f", size, fact.factor, current);
179 XBT_DEBUG("%f > %ld return %f", size, fact.factor, current);
184 double NetworkSmpiModel::bandwidthConstraint(double rate, double bound, double size)
186 return rate < 0 ? bound : min(bound, rate * bandwidthFactor(size));