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vtune cant collect data


I already used vtune on my own system without problems but to use some other features too I used intel64 this morning.

After getting the message: Warning: Hardware events collection is disabled by default. To enable it, run with --vtune (recommended) or --papi option.

I used --vtune but it seems that vtune is still not able to collect the data, so I get "No data to show. The collected data is not sufficient."

What would be the best way to re-enable data collection on my system?

Edit: I could solve the problem.

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