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Amplifier cannot detect Intel Xeon Phi coprocessor configuration.

Bryan_H_2
Beginner
143 Views

Hi, there.

When our team used Vtune 2015 Update 2, we could make analysis against mic using the command below.

amplxe-cl -collect=general-exploration -result-dir=./result -target-system=mic-native:1 -- [path to the app]

However, recently we've upgraded to Vtune 2015 Update 4, and now when we execute the command above, it got error "Amplifier cannot detect Intel Xeon Phi coprocessor configuration.". Would you please help us out here?

Also, we are trying to capture cache miss rates on mic to figure out the reason for our program's poor performance. Could you please give us some advice on how to do performance analysis? 

Thanks,

Bryan.

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2 Replies
Peter_W_Intel
Employee
143 Views

My opinion is to check:

1. service mpss status ; you may restart mpss if it did't run

2. ssh mic1 lsmod | grep sep; check if vtune driver is available

If the driver is not loaded, you need to run "sep_micboot_install.sh" under vtune/bin64/k1om. Then restart mpss

3. amplxe-cl -c general-exploration -result-dir result -target-system=mic-native:0 -d 5 ; try data collection without application

 

 

Dmitry_P_Intel1
Employee
143 Views

Hello,

Could you also please provide the output from the following commands to help to triage the issue?

>ssh mic1 ls /amplxe

and 

>export | grep MPSS

and 

<vtune_install_dir_on_host>/bin64/sep -version -mic

Thank you, Regards, Dmitry

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