Scyld ClusterWare HPC: Reference Guide
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bproc_nodeaddr

Name

bproc_nodeaddr -- Get the IP address for a node.

Synopsis

#include <sys/bproc.h>

int bproc_nodeaddr (int node, struct sockaddr * addr, int * size);

Arguments

node: The node number
addr: pointer to a struct sockaddr
size: The size of addr

Description

Save the node's IP address in the struct sockaddr pointed to by addr. The size element should be initialized to indicate the amount of space pointed to by addr. On return it contains the actual size of the addr returned (in bytes).

Return Value

Returns 0 on success.

Returns -1 on error, and sets errno.

Errors

EFAULT: addr or size points to memory that is not accessible by the program.
EIO: There was an I/O error.
ENOMEM: Out of memory error.

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