p4tcp — configure the ParaStation4 TCP bypass.
p4tcp [ -v ] [ -a ] [ -d ] [ -? ] [
p4tcp configures the ParaStation4 TCP bypass. Without an argument, the current configuration is printed.
to are IP addresses forming an
address range for which the bypass feature should be activated.
Multiple addresses or address ranges may be configured by using
multiple p4tcp commands.
To enable the bypass for a pair of processes, the library
libp4tcp.so located in the directory
/opt/parastation/lib64 must be preloaded by
both processes using:
For parallel and serial tasks launched by ParaStation MPI, this environment variable is exported to all processes by default. Please refer to ps_environment(5).
Add an address or an address range to the list of
redirected addresses. New TCP connections directed to a
node within this address range may use the
protocol for data transfer.
Delete an address or address range from the list of
redirected addresses. New TCP connections to this
address(es) will no longer use the
Output version information and exit.
Show a help message.
Display a brief usage message.