├── .gitignore ├── AUTHORS ├── Makefile ├── README.md ├── ib2slurm.h ├── ib2slurm.c └── COPYING /.gitignore: -------------------------------------------------------------------------------- 1 | /ib2slurm 2 | -------------------------------------------------------------------------------- /AUTHORS: -------------------------------------------------------------------------------- 1 | Jon Bringhurst 2 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | all: 2 | cc -Wextra -Wall -g -o ib2slurm ib2slurm.c -I/usr/include/infiniband -libnetdisc 3 | 4 | clean: 5 | rm -f ib2slurm core.* 6 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ib2slurm 0.1 2 | ============ 3 | 4 | A program that attempts to generate a slurm style topology.conf(5) file using 5 | infiniband network discovery services. 6 | 7 | Usage 8 | ----- 9 | 10 | ```ib2slurm --node-name-map ``` 11 | 12 | _name_map_ is the location of a node name map file formatted as described in the 13 | ibnetdiscover(8) man page. The node name map entries must be compatible with 14 | slurm's currently used node naming scheme. 15 | 16 | If a node name map is not provided, ib2slurm will attempt to print the raw 17 | infiniband guid values instead. If this happens, the topology file will not 18 | be usable by slurm. 19 | -------------------------------------------------------------------------------- /ib2slurm.h: -------------------------------------------------------------------------------- 1 | #ifndef __IB2SLURM_H 2 | #define __IB2SLURM_H 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | 9 | #include 10 | #include 11 | 12 | typedef struct ib2slurm_opts_t { 13 | nn_map_t* node_name_map; 14 | int lookup_flag; 15 | int compress_flag; 16 | } ib2slurm_opts_t; 17 | 18 | typedef struct ib2slurm_list_t { 19 | char* str; 20 | struct ib2slurm_list_t* next; 21 | } ib2slurm_list_t; 22 | 23 | void switch_iter_func(ibnd_node_t* node, void* user_data); 24 | void output_nodelist(char *tag, int type, ib2slurm_opts_t* opts, ibnd_node_t* node); 25 | void print_without_compression(ib2slurm_list_t* list, char* tag); 26 | void print_with_compression(ib2slurm_list_t* list, char* tag); 27 | char* node_name(ibnd_node_t* node, ib2slurm_opts_t* opts); 28 | 29 | #endif /* __IB2SLURM_H */ 30 | -------------------------------------------------------------------------------- /ib2slurm.c: -------------------------------------------------------------------------------- 1 | #include "ib2slurm.h" 2 | 3 | /** 4 | * An iterator for handling each switch in the fabric. 5 | * 6 | * @param node the current switch being analyzed. 7 | * @param user_data various user-controlable options. 8 | */ 9 | void switch_iter_func(ibnd_node_t* node, void* user_data) 10 | { 11 | ib2slurm_opts_t* opts = (ib2slurm_opts_t*)user_data; 12 | 13 | /* 14 | * We don't really need to lookup the switch name, slurm will be happy 15 | * with using the guid of the switch. 16 | */ 17 | if(opts->lookup_flag) { 18 | char* switchname = node_name(node, opts); 19 | fprintf(stdout, "SwitchName=%s", switchname); 20 | free(switchname); 21 | } else { 22 | fprintf(stdout, "SwitchName=%" PRIx64, node->guid); 23 | } 24 | 25 | /* 26 | * After printing out the name of the switch, lets print out all of the nodes and 27 | * switches in the level of the tree directly below the current switch. 28 | */ 29 | output_nodelist("Switches=", IB_NODE_SWITCH, opts, node); 30 | output_nodelist("Nodes=", IB_NODE_CA, opts, node); 31 | 32 | fprintf(stdout, "\n"); 33 | } 34 | 35 | void output_nodelist(char *tag, int type, ib2slurm_opts_t* opts, ibnd_node_t* node) 36 | { 37 | ibnd_port_t* port; 38 | int p = 0; 39 | 40 | ib2slurm_list_t list_head; 41 | list_head.str = NULL; 42 | list_head.next = NULL; 43 | 44 | ib2slurm_list_t* list_cur = &list_head; 45 | 46 | /* 47 | * Lets go through all the ports on this switch to see if anything is 48 | * connected to it. 49 | */ 50 | for(p = 1; p <= node->numports; p++) { 51 | port = node->ports[p]; 52 | 53 | /* 54 | * Only print out the node types that match the tag printed 55 | * before it. 56 | */ 57 | if(port && port->remoteport && port->remoteport->node->type == type) { 58 | 59 | /* Always attempt a node lookup, since slurm requires it. */ 60 | if(opts->lookup_flag || type == IB_NODE_CA) { 61 | char* remote = node_name(port->remoteport->node, opts); 62 | 63 | list_cur->str = remote; 64 | list_cur->next = (ib2slurm_list_t*)malloc(sizeof(ib2slurm_list_t)); 65 | 66 | list_cur = list_cur->next; 67 | list_cur->str = NULL; 68 | list_cur->next = NULL; 69 | } else { 70 | char* buf = (char*)malloc(sizeof(char) * 512); 71 | sprintf(buf, "%" PRIx64, port->remoteport->guid); 72 | 73 | list_cur->str = buf; 74 | list_cur->next = (ib2slurm_list_t*)malloc(sizeof(ib2slurm_list_t)); 75 | 76 | list_cur = list_cur->next; 77 | list_cur->str = NULL; 78 | list_cur->next = NULL; 79 | } 80 | } 81 | } 82 | 83 | if(opts->compress_flag) { 84 | print_with_compression(&list_head, tag); 85 | } else { 86 | print_without_compression(&list_head, tag); 87 | } 88 | 89 | /* TODO: free the list elements. */ 90 | } 91 | 92 | /* 93 | * This attempts to print the list in a compressed format, 94 | * such as common[min-max]. 95 | */ 96 | void print_with_compression(ib2slurm_list_t* list, char* tag) 97 | { 98 | fprintf(stderr, "Sorry, compressing strings isn't implemented yet.\n"); 99 | exit(EXIT_FAILURE); 100 | } 101 | 102 | /* 103 | * This prints the list to be formatted as seperated by commas. 104 | */ 105 | void print_without_compression(ib2slurm_list_t* list, char* tag) 106 | { 107 | ib2slurm_list_t* list_cur = NULL; 108 | 109 | if(list != NULL && list->str != NULL) { 110 | fprintf(stdout, " %s", tag); 111 | 112 | for(list_cur = list; list_cur->next != NULL; list_cur = list_cur->next) { 113 | fprintf(stdout, "%s", list_cur->str); 114 | 115 | if(list_cur->next->str != NULL) { 116 | fprintf(stdout, ", "); 117 | } 118 | } 119 | } 120 | } 121 | 122 | /* 123 | * A helper to lookup the node name based on the node name map specified by 124 | * the user. 125 | * 126 | * @param the node name to print out. 127 | * @param opts user specified options. 128 | */ 129 | char* node_name(ibnd_node_t* node, ib2slurm_opts_t* opts) 130 | { 131 | char* buf = NULL; 132 | 133 | if(node == NULL) { 134 | fprintf(stderr, "Attempted to get a node name from an invalid node."); 135 | exit(EXIT_FAILURE); 136 | } 137 | 138 | buf = remap_node_name(opts->node_name_map, node->guid, node->nodedesc); 139 | 140 | return buf; 141 | } 142 | 143 | /* 144 | * Output a short header to tell someone viewing the topology.conf where it 145 | * came from. 146 | */ 147 | void output_header() 148 | { 149 | fprintf(stdout, "# topology.conf\n" 150 | "# Switch Configuration\n#\n" 151 | "# Generated by ib2slurm \n#\n"); 152 | } 153 | 154 | /* 155 | * Our main entry point. 156 | */ 157 | int main(int argc, char** argv) 158 | { 159 | ibnd_fabric_t* fabric = NULL; 160 | char* ibd_ca = NULL; 161 | int ibd_ca_port = 0; 162 | 163 | char* node_name_map_file = NULL; 164 | 165 | static ib2slurm_opts_t opts; 166 | int option_index = 0; 167 | int c; 168 | 169 | static struct option long_options[] = { 170 | {"node-name-map", required_argument, 0, 'm'}, 171 | {"lookup-switch-name", no_argument, &opts.lookup_flag, 's'}, 172 | {"compress-node-names", no_argument, &opts.compress_flag, 'c'}, 173 | {0, 0, 0, 0} 174 | }; 175 | 176 | while((c = getopt_long(argc, argv, "m:", long_options, &option_index)) != -1) { 177 | switch(c) { 178 | case 'm': 179 | node_name_map_file = strdup(optarg); 180 | break; 181 | } 182 | } 183 | 184 | opts.node_name_map = open_node_name_map(node_name_map_file); 185 | 186 | if((fabric = ibnd_discover_fabric(ibd_ca, ibd_ca_port, NULL, 0)) == NULL) { 187 | fprintf(stderr, "IB discover failed.\n"); 188 | exit(EXIT_FAILURE); 189 | } 190 | 191 | output_header(); 192 | ibnd_iter_nodes_type(fabric, switch_iter_func, IB_NODE_SWITCH, &opts); 193 | 194 | ibnd_destroy_fabric(fabric); 195 | close_node_name_map(opts.node_name_map); 196 | 197 | exit(EXIT_SUCCESS); 198 | } 199 | 200 | /* EOF */ 201 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | Copyright (c) 2004, 2005 Voltaire, Inc. 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