Boolean Attributes

Boolean attributes are either true or false. If you want the attribute to be true, simply list the attribute in the RRS. For example, if your system administrator has defined an attribute called ionode, you can request a node with that attribute:

% mprun -R "ionode" a.out

If you want the attribute to be false (that is, you do not want a resource with that attribute), precede the attribute's name with !. (Precede this with a backslash in the C shell; the backslash is an escape character to prevent the shell from interpreting the exclamation point as a "history" escape.) For example,

% mprun -R "\!ionode" a.out

For example,

% mprun -R "mem_free > 256" a.out

specifies that the node must have over 256 megabytes of available RAM.

% mprun -R "swap_free >>" a.out

specifies that the node picked must have the highest available swap space.