Fwd: GPSR routing protocol metric calculation

plz somebody help me as my work is stuck.

I run GPSR for 100 nodes , 250 transmission range and 1000 simulation time.

But now when i am running my awk files on gpsr trace file (.tr) it is
showing division by zero error and no output.

I want to *calculate Throughput, Delay, PDR and overhead* . I have the awk
files and they are giving correct output for AODV, DSR and LAR , but no
output in case of GPSR.

Kindly help
If you have any idea plz help.

Do anyone knows ..........
*What is the format of GPSR trace file?*
*There is no format_gpsr function in cmu-trace.cc file.*
*How can i calculate the above mentioned metrics values for GPSR. *