bproc_execmove -- Exec a local binary on a remote node
#include <sys/bproc.h> int _bproc_execmove_io (int node, int port, const char * cmd, char * const argv, char * const envp); int bproc_execmove (int node, const char * cmd, char * const argv, char * const envp);
- The destination node for the child process.
- The IP port
BProcshould connect back to for I/O forwarding.
- The program to execute
- The argument list
- The environment
This function allows execution of local binaries on remote nodes.
BProc will load the binary image on the current node and then move
it to a remote node, prior to executing the binary image.
NOTE: This migration mechanism will move the binary image but not
any dynamically loaded libraries that the application might need.
Therefore any libraries that the application uses must be present on the
remote system. Function does not return on success. On failure, it
returns -1 and sets
port is the TCP port
BProc should connect back to to handle I/O
port value of 0 means it assumes I/O forwarding is
being done on the existing socket for
Any other value and it will try to connect back to that port and open
three connections, one for
stdout, one for
stderr, and one for
If you use
port has a default value of 0.
Does not return on success.
Returns on error, and sets
- The filesystem where
cmdresides is mounted nosuid and the program is suid or sgid
- Out of memory
- No Master
argvpoints to memory that is not accessible the by the program.
- The program does not have execute permission on
- Argument list is too big
cmdis not in a recognized executable format or is for the wrong architecture
cmdis too long
cmddoes not exist.
- Part of the path to
cmdis not a directory.
- Too many symbolic links were encountered when resolving
cmdis open for writing by another program.
- An I/O error occurred.
- The limit on open files has been reached.
- An ELF executable had more than one