topic Re: run time parameters while analyzing performance in Analyzers

run time parameters while analyzing performance

fauzia — Thu, 12 Nov 2009 23:59:02 GMT

Hi,
Can anyone tell me how can give runtime inputs during using vtune?

my c code main function takes 3 command line inputs ( main (argv[]..)... )
after compiling with icc, i am generating a.out(or whatever is the name..)

now i tried to collect the cpu-clk-unhalted value using the following command

$ vtl activity test-2 -d 600 -start-paused -c sampling -o "-cal yes -sterm yes -ec -en='CPU_CLK_UNHALTED.THREAD'

" -app ./a.out run

here i need to put the 3 params. if i was running only in command line , i would have put $ ./a.out 4 4 4
but how can I do it while running with vtune?

thanks

Re: run time parameters while analyzing performance

TimP — Fri, 13 Nov 2009 01:18:03 GMT

There is an option to give command line parameters in the setup for VTune, but it may be better to set up your application to run as a shell script, if you can put the inputs in the script, and specify that script to be run by VTune.

Re: run time parameters while analyzing performance

fauzia — Fri, 13 Nov 2009 03:03:05 GMT

Quoting - tim18

Thanks. I wrote a shell script with all the parameter combinations and then ran it using vtune. its working...thanks again.

Re: run time parameters while analyzing performance

fauzia — Tue, 17 Nov 2009 17:07:38 GMT

I am facing a different problem now. My shell script runs my application file for about 30 different parameters.
Like:
for i,j,k
./a.out $i, $j, $k // for different combinations of parameters

I need h/w counter values for all these combinations. But in the output activity file, I am getting at most 16 set of values. Is there some kind of a limit? Or is it just adding up the values for different combinations?