Strategy will be applied on which ports if no filter is used in strategy?

In below case which are the target ports for isolation ?


module top ();
core1 CORE1 (.*);
endmodule

module core1 (input in1, in2 ,outpot out1);
assign out1 = in1 & in2 ;
endmodule


create_power_domain PD1 -elements {CORE1}
set_isolation iso_1 -domain PD1


>> Here as no filter is specified by default all the i/p and o/p ports of CORE1 are target port for strategy  "iso_1" .