difference between task and function in system verilog

[vijvisv]

systemverilog function

what is the difference between task and function in systemverilog.
I am so confused where to use task and where to use function in system verilog.
I am involved with verification of some IP in sytem verilog..

 

[amnesia13]

difference between task and function in verilog

In function statement you have no time information while it is the case for task statement.

Tasks are generally used for testbench generation while function maybe be used for wire or register calculation.