cpusetGetMemList(3x)
cpusetGetMemList - get the list of all nodes with memory assigned to a cpuset
As shipped in IRIX 6.5.22. Added in IRIX 6.5.22.
NAME cpusetGetMemList - get the list of all nodes with memory assigned to a cpuset SYNOPSIS #include <cpuset.h> cpuset_NodeList_t *cpusetGetMemList(char *qname); DESCRIPTION The cpusetGetMemList function is used to obtain the list of the nodes with memory assigned to the specified cpuset. Only processes running with a user ID or group ID that has read access permissions on the permissions file can successfully execute this function. The qname argument is the name of the specified cpuset. The function returns a pointer to a structure of type cpuset_NodeList_t (defined in <cpuset.h>). The function cpusetGetMemList allocates the memory for the structure and the user is responsible for freeing the memory using the function cpusetFreeNodeList(3x). The cpuset_NodeList_t structure is defined as follows: typedef struct { int count; cnodeid_t *list; } cpuset_NodeList_t; count is the number of node IDs in the list. list references the memory array that holds the list of node IDs. The memory for list is allocated when the cpuset_NodeList_t is allocated and it is released when the cpuset_NodeList_t structure is released. EXAMPLES This example obtains the list of nodes with memory assigned to the cpuset mpi_set and prints out the node ID values. char *qname = "mpi_set"; cpuset_NodeList_t *mems; int i; /* Get the list of memory else print error & exit */ if ( !(mems = cpusetGetMemList(qname)) ) { perror("cpusetGetMemList"); exit(1); } printf("CPUSET[%s] assigned Node memories:\n", qname); for (i = 0; i < memss->count; i++) printf("MEM_NODE_ID[%d]\n", mems->list[i]); cpusetFreeMemList(mems); NOTES cpusetGetMemList is found in the library "libcpuset.so", and will be loaded if the option -lcpuset is used with cc(1) or ld(1). SEE ALSO cpuset(1), cpusetFreeNodeList(3x), cpuset(5). DIAGNOSTICS If successful, cpusetGetMemList returns a pointer to a cpuset_MemList_t structure. If cpusetGetMemList fails, it returns NULL and errno is set to indicate the error. The possible values for errno include those values as set by sysmp(2) and sbrk(2).