The PVMmake config file

The PVMmake config file can be created with an ordinary text editor. Thus PVMmake can be used in parallel applications development by those users who do not have access to the X Window System. The syntax of commands in the PVMmake config file is quite simple and is best illustrated by an example. An example config file, mw.pvmmake , is contained in the nist_pade/examples subdirectory. This file was written by PADE and comes from the manager/worker example.

The config file contains three types of items: 1) comments, 2) file transfer command, and 3) commands to be issued to remote hosts.

Lines beginning with the # character are comments.

The syntax for the PVMmake file-transfer command consists of two elements. These elements are

• One line containing the full path name of the local-host file to be transferred.

• One or more lines each containing two items: (1) the name of a host to which the file must be sent and (2) the file's location on that host. These two items must be separated by whitespace. This list of remote hosts/locations must be terminated by a blank line. A comment cannot take the place of the blank line.

Formally, the syntax is defined by:

file_name_on_local_host
remote_host_1     filename_on_remote_host_1
remote_host_2     filename_on_remote_host_2
...               ...
remote_host_N     filename_on_remote_host_N
<BLANK LINE>

Note that local-host refers to the computer on which the pvmmake binary was launched; remote-host refers to any node of the virtual machine.

The syntax for telling PVMmake to issue a command on a remote host has the following form:

@ remote_host command_1; command_2;...command_N [+errors]