Scyld ClusterWare HPC: Reference Guide
<< PreviousNext >>

bproc_numnodes

Name

bproc_numnodes -- Get the count of cluster nodes.

Synopsis

#include <sys/bproc.h>

int bproc_numnodes (void );

Description

This function returns the number of nodes the cluster is configured to support. Note that this is the potential size of the cluster, not the current number of available nodes or the count of machines assigned node numbers.

Return Value

Returns the number of compute nodes the system is configured to support. If the BProc system is not loaded, returns 0 and sets errno to ENOSYS.

Returns -1 on error, and sets errno.

Errors

EIO

The BProc system is loaded but not configured or active.

ENOMEM

Insufficient kernel memory was available.

See Also

bproc_currnode(3), bproc_nodeinfo(3), bpstat(1)

<< PreviousHomeNext >>
bproc_nodestatusUpbproc_pidghostnode